Author Topic: Project "Evolution" 78' CB750K... the morphing continues...  (Read 74890 times)

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Offline Restoration Fan

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Re: Project "Evolution" 78' CB750K... progress continues
« Reply #75 on: April 07, 2015, 07:55:10 PM »
Wilbur,
Have you already put your carb racks back together?
Ron

Stella - Logan's Senior Project    78 750K http://forums.sohc4.net/index.php?topic=141761.0

Logan's Reward - CB500 and CB550 Cafes    http://forums.sohc4.net/index.php/topic,147787.0.html

Offline madmtnmotors

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Re: Project "Evolution" 78' CB750K... progress continues
« Reply #76 on: April 08, 2015, 03:41:46 AM »
Yep, the carb rack is assembled and ready to install. The choke linkage on these later model carbs always takes me a few minutes to figure out!  ;D
TAMTF...


Wilbur



Projects:
"Evolution": http://forums.sohc4.net/index.php?topic=100352.0
"P.O. Debacle": http://forums.sohc4.net/index.php/topic,126692.msg1441661.html#msg1441661
F2/F3 O-rings: http://forums.sohc4.net/index.php?topic=113672.msg1300721#msg1300721
Cam Tower Studs: https://www.mcmaster.com/#93210a017/=t19sgp
Clean up that nasty harness: http://forums.sohc4.net/index.php?topic=137351.msg1549191#msg1549191
http://forums.sohc4.net/index.php/topic,148188.msg1688494.html#msg1688494
http://forums.sohc4.net/index.php/topic,139544.msg1579364.html#msg1579364
                                          
Charging system diagnosis: http://forums.sohc4.net/index.php?topic=1012.msg8345#msg8345
Get the manuals: http://manuals.sohc4.net/cb750k/
The Dragon: http://forums.sohc4.net/index.php?topic=45183.msg1571675#msg1571675
Headlight Switch: http://forums.sohc4.net/index.php?topic=113986.msg1283236#msg1283236
Branden's leak free top end thread: http://forums.sohc4.net/index.php?topic=107040.0
Engine Lifting Made Easy: http://forums.sohc4.net/index.php/topic,58210.msg1684742.html#msg1684742
                                      http://forums.sohc4.net/index.php/topic,100352.msg1675840.html#msg1675840
Static and Dynamic Timing: http://www.hondachopper.com/garage/carb_info/timing/timing1.html
Airbox Gasket Replacement: http://forums.sohc4.net/index.php/topic,114485.msg1290000.html#msg1290000
"Café" : http://forums.sohc4.net/index.php/topic,84697.msg953814.html#msg953814
PD Carb Choke Linkage: http://forums.sohc4.net/index.php/topic,100352.msg1669248.html#msg1669248
                                    http://forums.sohc4.net/index.php/topic,110931.msg1248354.html#msg1248354
                                    http://forums.sohc4.net/index.php/topic,48858.msg515204.html#msg515204
Follow up on your damn posts: http://forums.sohc4.net/index.php/topic,144305.msg1791605.html#msg1791605
Taiwanese Cam Chain Tensioners:  http://forums.sohc4.net/index.php/topic,155043.msg1774841.html#msg1774841
Gumtwo Seat Cover: http://forums.sohc4.net/index.php/topic,164440.msg1897366.html#msg1897366
Primary Drive: http://forums.sohc4.net/index.php/topic,166063.msg1919278.html#msg1919278
Tank Latch: http://forums.sohc4.net/index.php/topic,165975.msg1919495.html#msg1919495
Shorten your forks: http://vintage-and-classic-honda-s.456789.n3.nabble.com/How-to-shorten-forks-td4042465.html DO NOT CUT THE SPRINGS!
Clutch How To: http://vintage-and-classic-honda-s.456789.n3.nabble.com/How-to-change-and-adjust-a-clutch-SOHC-td4040391.html
Late model K7/K8/F2/F3 front sprocket cover removal: http://forums.sohc4.net/index.php/topic,178428.msg2072279.html#msg2072279
630 to 530 conversion: http://forums.sohc4.net/index.php/topic,180710.msg2094423.html#msg2094423

Sent from my Tandy TRS-80!

Offline Restoration Fan

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Re: Project "Evolution" 78' CB750K... progress continues
« Reply #77 on: April 08, 2015, 05:16:50 AM »
Yep, the carb rack is assembled and ready to install. The choke linkage on these later model carbs always takes me a few minutes to figure out!  ;D

Yeah, that's where we are struggling right now.  Since you have yours back together, let me ask you a question:
The choke linkage arm that goes through carbs #1 and #2...does the flat side face into the carb?  If so, I'm assuming you remove the slide and slide needle and screw it in from the other side? 
The arm for #3 and #4 seems to make sense but the one for 1 and 2 is counter-intuitive because the linkage would pull the butterfly valve against the little stop there.
Ron

Stella - Logan's Senior Project    78 750K http://forums.sohc4.net/index.php?topic=141761.0

Logan's Reward - CB500 and CB550 Cafes    http://forums.sohc4.net/index.php/topic,147787.0.html

Offline madmtnmotors

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Re: Project "Evolution" 78' CB750K... progress continues
« Reply #78 on: April 08, 2015, 05:33:01 AM »
The choke linkage arm that goes through carbs #1 and #2...does the flat side face into the carb?  If so, I'm assuming you remove the slide and slide needle and screw it in from the other side? 
The arm for #3 and #4 seems to make sense but the one for 1 and 2 is counter-intuitive because the linkage would pull the butterfly valve against the little stop there.

LOL, I thought the same thing at one point, but that is wrong. All of the flat sides face the inlet and the screws are installed from the side facing the airbox, so no need to remove the slides. I can post some picts of the assembled linkage this evening.
TAMTF...


Wilbur



Projects:
"Evolution": http://forums.sohc4.net/index.php?topic=100352.0
"P.O. Debacle": http://forums.sohc4.net/index.php/topic,126692.msg1441661.html#msg1441661
F2/F3 O-rings: http://forums.sohc4.net/index.php?topic=113672.msg1300721#msg1300721
Cam Tower Studs: https://www.mcmaster.com/#93210a017/=t19sgp
Clean up that nasty harness: http://forums.sohc4.net/index.php?topic=137351.msg1549191#msg1549191
http://forums.sohc4.net/index.php/topic,148188.msg1688494.html#msg1688494
http://forums.sohc4.net/index.php/topic,139544.msg1579364.html#msg1579364
                                          
Charging system diagnosis: http://forums.sohc4.net/index.php?topic=1012.msg8345#msg8345
Get the manuals: http://manuals.sohc4.net/cb750k/
The Dragon: http://forums.sohc4.net/index.php?topic=45183.msg1571675#msg1571675
Headlight Switch: http://forums.sohc4.net/index.php?topic=113986.msg1283236#msg1283236
Branden's leak free top end thread: http://forums.sohc4.net/index.php?topic=107040.0
Engine Lifting Made Easy: http://forums.sohc4.net/index.php/topic,58210.msg1684742.html#msg1684742
                                      http://forums.sohc4.net/index.php/topic,100352.msg1675840.html#msg1675840
Static and Dynamic Timing: http://www.hondachopper.com/garage/carb_info/timing/timing1.html
Airbox Gasket Replacement: http://forums.sohc4.net/index.php/topic,114485.msg1290000.html#msg1290000
"Café" : http://forums.sohc4.net/index.php/topic,84697.msg953814.html#msg953814
PD Carb Choke Linkage: http://forums.sohc4.net/index.php/topic,100352.msg1669248.html#msg1669248
                                    http://forums.sohc4.net/index.php/topic,110931.msg1248354.html#msg1248354
                                    http://forums.sohc4.net/index.php/topic,48858.msg515204.html#msg515204
Follow up on your damn posts: http://forums.sohc4.net/index.php/topic,144305.msg1791605.html#msg1791605
Taiwanese Cam Chain Tensioners:  http://forums.sohc4.net/index.php/topic,155043.msg1774841.html#msg1774841
Gumtwo Seat Cover: http://forums.sohc4.net/index.php/topic,164440.msg1897366.html#msg1897366
Primary Drive: http://forums.sohc4.net/index.php/topic,166063.msg1919278.html#msg1919278
Tank Latch: http://forums.sohc4.net/index.php/topic,165975.msg1919495.html#msg1919495
Shorten your forks: http://vintage-and-classic-honda-s.456789.n3.nabble.com/How-to-shorten-forks-td4042465.html DO NOT CUT THE SPRINGS!
Clutch How To: http://vintage-and-classic-honda-s.456789.n3.nabble.com/How-to-change-and-adjust-a-clutch-SOHC-td4040391.html
Late model K7/K8/F2/F3 front sprocket cover removal: http://forums.sohc4.net/index.php/topic,178428.msg2072279.html#msg2072279
630 to 530 conversion: http://forums.sohc4.net/index.php/topic,180710.msg2094423.html#msg2094423

Sent from my Tandy TRS-80!

Offline Restoration Fan

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Re: Project "Evolution" 78' CB750K... progress continues
« Reply #79 on: April 08, 2015, 05:38:14 AM »
The choke linkage arm that goes through carbs #1 and #2...does the flat side face into the carb?  If so, I'm assuming you remove the slide and slide needle and screw it in from the other side? 
The arm for #3 and #4 seems to make sense but the one for 1 and 2 is counter-intuitive because the linkage would pull the butterfly valve against the little stop there.

LOL, I thought the same thing at one point, but that is wrong. All of the flat sides face the inlet and the screws are installed from the side facing the airbox, so no need to remove the slides. I can post some picts of the assembled linkage this evening.

That would be very helpful. Thank you.
Ron

Stella - Logan's Senior Project    78 750K http://forums.sohc4.net/index.php?topic=141761.0

Logan's Reward - CB500 and CB550 Cafes    http://forums.sohc4.net/index.php/topic,147787.0.html

Offline madmtnmotors

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Re: Project "Evolution" 78' CB750K... progress continues
« Reply #80 on: April 08, 2015, 06:12:31 PM »
Okay, hold on to your hats ladies, PD choke linkage 101, here we go!  :o

Fully assembled:  8)



Properly working choke. Notice the accessibility of the screw heads. All pictures taken from the rear (air cleaner) side:



Note how the hole in the choke plate lines up with the accel pump "squirter":



From left to right:
>#2 Carb Body
>Choke lever return spring
>Choke lever. This is semi permanently attached. If you removed it then good luck. You should have taken more pictures!
>Choke rod coil spring
>End of 1/2 choke rod
>End of 3/4 choke rod



From a different perspective:



And three more for luck:  ;D







I just happened to have a set of disassembled carbs under the bench. The three primary components are the coil spring, the 1/2 choke rod, and the 3/4 choke rod. The rest of the assembly is pretty straightforward. Here we have the coil spring slipped over the 1/2 choke rod prior to inserting the choke rod through the #2 carb. Note the orientation of the coil spring, it can only go the way it is shown here:



See what I mean? The spring hooks over the little slot in the (semi permanently attached) choke lever:



Now for some slight of hand!  ;) Slide the 1/2 choke lever in, orienting the tabs as shown below. You will have to rotate the choke lever slightly so the tab on the 1/2 rod can slide under the choke lever. There is no spring connection to this rod:



Now take the 3/4 choke rod:



Hook the coil spring and start rotating counter-clockwise:



Here we are about one-half turn from where we started (from about the 6:00 position):



Rotate past the tab on the 1/2 rod, making sure the spring windings pass behind this tab until the tabs of the 3/4 rod rest to the rear of the tab on the 1/2 rod:





Easy-Peasy!  8)

Now look at the earlier photos of the completed assembly above and see if they make more sense.

Slide the #3 carb into place and you're almost done! Once you get everything assembled check the operation of the choke to make sure it works like it should. The coiled spring is the only thing moving these plates and it doesn't take much misalignment or drag to keep the choke from working properly. These cold-natured beasts don't like to start when cold if the choke ain't workin wroight...  :)

TAMTF...


Wilbur



Projects:
"Evolution": http://forums.sohc4.net/index.php?topic=100352.0
"P.O. Debacle": http://forums.sohc4.net/index.php/topic,126692.msg1441661.html#msg1441661
F2/F3 O-rings: http://forums.sohc4.net/index.php?topic=113672.msg1300721#msg1300721
Cam Tower Studs: https://www.mcmaster.com/#93210a017/=t19sgp
Clean up that nasty harness: http://forums.sohc4.net/index.php?topic=137351.msg1549191#msg1549191
http://forums.sohc4.net/index.php/topic,148188.msg1688494.html#msg1688494
http://forums.sohc4.net/index.php/topic,139544.msg1579364.html#msg1579364
                                          
Charging system diagnosis: http://forums.sohc4.net/index.php?topic=1012.msg8345#msg8345
Get the manuals: http://manuals.sohc4.net/cb750k/
The Dragon: http://forums.sohc4.net/index.php?topic=45183.msg1571675#msg1571675
Headlight Switch: http://forums.sohc4.net/index.php?topic=113986.msg1283236#msg1283236
Branden's leak free top end thread: http://forums.sohc4.net/index.php?topic=107040.0
Engine Lifting Made Easy: http://forums.sohc4.net/index.php/topic,58210.msg1684742.html#msg1684742
                                      http://forums.sohc4.net/index.php/topic,100352.msg1675840.html#msg1675840
Static and Dynamic Timing: http://www.hondachopper.com/garage/carb_info/timing/timing1.html
Airbox Gasket Replacement: http://forums.sohc4.net/index.php/topic,114485.msg1290000.html#msg1290000
"Café" : http://forums.sohc4.net/index.php/topic,84697.msg953814.html#msg953814
PD Carb Choke Linkage: http://forums.sohc4.net/index.php/topic,100352.msg1669248.html#msg1669248
                                    http://forums.sohc4.net/index.php/topic,110931.msg1248354.html#msg1248354
                                    http://forums.sohc4.net/index.php/topic,48858.msg515204.html#msg515204
Follow up on your damn posts: http://forums.sohc4.net/index.php/topic,144305.msg1791605.html#msg1791605
Taiwanese Cam Chain Tensioners:  http://forums.sohc4.net/index.php/topic,155043.msg1774841.html#msg1774841
Gumtwo Seat Cover: http://forums.sohc4.net/index.php/topic,164440.msg1897366.html#msg1897366
Primary Drive: http://forums.sohc4.net/index.php/topic,166063.msg1919278.html#msg1919278
Tank Latch: http://forums.sohc4.net/index.php/topic,165975.msg1919495.html#msg1919495
Shorten your forks: http://vintage-and-classic-honda-s.456789.n3.nabble.com/How-to-shorten-forks-td4042465.html DO NOT CUT THE SPRINGS!
Clutch How To: http://vintage-and-classic-honda-s.456789.n3.nabble.com/How-to-change-and-adjust-a-clutch-SOHC-td4040391.html
Late model K7/K8/F2/F3 front sprocket cover removal: http://forums.sohc4.net/index.php/topic,178428.msg2072279.html#msg2072279
630 to 530 conversion: http://forums.sohc4.net/index.php/topic,180710.msg2094423.html#msg2094423

Sent from my Tandy TRS-80!

Offline Restoration Fan

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Re: Project "Evolution" 78' CB750K... progress continues
« Reply #81 on: April 08, 2015, 06:16:33 PM »
Wilbur,
You are officially the man!  This picture tutorial is going to be HUGE for some people like Nate (AintNoEasyWay) or callmejarob who may end up working on their 78's carbs very soon. 
And it officially gives me a sigh of relief because it appears we did it correct this afternoon!
Thank you, thank you, thank you for taking the time to put this together. 
Ron

Stella - Logan's Senior Project    78 750K http://forums.sohc4.net/index.php?topic=141761.0

Logan's Reward - CB500 and CB550 Cafes    http://forums.sohc4.net/index.php/topic,147787.0.html

Offline AintNoEasyWay

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Re: Project "Evolution" 78' CB750K... progress continues
« Reply #82 on: April 09, 2015, 01:55:32 PM »
Haha, I had to figure this all out the hard way, but thanks for posting Wilbur as I'm sure by the time I have to deal with my carbs again, I'll have forgotten some minutiae. These pics are exactly what 77-78 forum members need!

Offline madmtnmotors

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Re: Project "Evolution" 78' CB750K... progress continues
« Reply #83 on: April 25, 2015, 08:14:53 PM »
Busy day today. Trying to keep up with Ron and Logan! Managed to install new rear wheel bearings, pressed in, NOT hammered in. New tire/tube/ and rubber band:




Of course all this was necessary to make it a roller (I had already removed the old tire from the rim) so I could finally get the engine back in the frame:




We have liftoff!




Careful.... careful....






Damn! That's tight!






Almost there...




Voila'!




Whole process, start to finish, took all of about ten minutes. That includes takin pitchurs! Good thing too, since I was runnin out of daylight. All that's left to do is roll'em back into the garage. Managed to get the chain adjusted on my regular ride, along with balancing the new tires. Going up to Leesburg for their annual Bikefest tomorrow to shakedown the newly synced carbs.

« Last Edit: June 01, 2015, 10:53:14 AM by madmtnmotors »
TAMTF...


Wilbur



Projects:
"Evolution": http://forums.sohc4.net/index.php?topic=100352.0
"P.O. Debacle": http://forums.sohc4.net/index.php/topic,126692.msg1441661.html#msg1441661
F2/F3 O-rings: http://forums.sohc4.net/index.php?topic=113672.msg1300721#msg1300721
Cam Tower Studs: https://www.mcmaster.com/#93210a017/=t19sgp
Clean up that nasty harness: http://forums.sohc4.net/index.php?topic=137351.msg1549191#msg1549191
http://forums.sohc4.net/index.php/topic,148188.msg1688494.html#msg1688494
http://forums.sohc4.net/index.php/topic,139544.msg1579364.html#msg1579364
                                          
Charging system diagnosis: http://forums.sohc4.net/index.php?topic=1012.msg8345#msg8345
Get the manuals: http://manuals.sohc4.net/cb750k/
The Dragon: http://forums.sohc4.net/index.php?topic=45183.msg1571675#msg1571675
Headlight Switch: http://forums.sohc4.net/index.php?topic=113986.msg1283236#msg1283236
Branden's leak free top end thread: http://forums.sohc4.net/index.php?topic=107040.0
Engine Lifting Made Easy: http://forums.sohc4.net/index.php/topic,58210.msg1684742.html#msg1684742
                                      http://forums.sohc4.net/index.php/topic,100352.msg1675840.html#msg1675840
Static and Dynamic Timing: http://www.hondachopper.com/garage/carb_info/timing/timing1.html
Airbox Gasket Replacement: http://forums.sohc4.net/index.php/topic,114485.msg1290000.html#msg1290000
"Café" : http://forums.sohc4.net/index.php/topic,84697.msg953814.html#msg953814
PD Carb Choke Linkage: http://forums.sohc4.net/index.php/topic,100352.msg1669248.html#msg1669248
                                    http://forums.sohc4.net/index.php/topic,110931.msg1248354.html#msg1248354
                                    http://forums.sohc4.net/index.php/topic,48858.msg515204.html#msg515204
Follow up on your damn posts: http://forums.sohc4.net/index.php/topic,144305.msg1791605.html#msg1791605
Taiwanese Cam Chain Tensioners:  http://forums.sohc4.net/index.php/topic,155043.msg1774841.html#msg1774841
Gumtwo Seat Cover: http://forums.sohc4.net/index.php/topic,164440.msg1897366.html#msg1897366
Primary Drive: http://forums.sohc4.net/index.php/topic,166063.msg1919278.html#msg1919278
Tank Latch: http://forums.sohc4.net/index.php/topic,165975.msg1919495.html#msg1919495
Shorten your forks: http://vintage-and-classic-honda-s.456789.n3.nabble.com/How-to-shorten-forks-td4042465.html DO NOT CUT THE SPRINGS!
Clutch How To: http://vintage-and-classic-honda-s.456789.n3.nabble.com/How-to-change-and-adjust-a-clutch-SOHC-td4040391.html
Late model K7/K8/F2/F3 front sprocket cover removal: http://forums.sohc4.net/index.php/topic,178428.msg2072279.html#msg2072279
630 to 530 conversion: http://forums.sohc4.net/index.php/topic,180710.msg2094423.html#msg2094423

Sent from my Tandy TRS-80!

Offline Retro Rocket

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Re: Project "Evolution" 78' CB750K... progress continues
« Reply #84 on: April 25, 2015, 09:28:42 PM »
Good job Wilbur... ;)   I didn't see any beers...? I'll assume they were already disposed of..?   ;D ;)
750 K2 1000cc
750 F1 970cc
750 Bitsa 900cc
If You can't fix it with a hammer, You've got an electrical problem.

Offline Restoration Fan

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Re: Project "Evolution" 78' CB750K... progress continues
« Reply #85 on: April 26, 2015, 04:14:00 AM »
Wilbur,
You are the man!  I'm glad you posted on this thread again today because I meant to tell you something yesterday.  The way we fixed our carb linkage issue yesterday was to pull the carbs back apart on the rack and reassemble them following your well-documented instructions earlier in this thread.

IMO, we should break those photos and explanation into a separate thread and put them into the Tips & Tricks as the Bible for putting 77/78 carbs back together.

Thanks again for taking the time to do that.  I don't know if we would have been able to get ours together and certainly couldn't have done it as easily without your instructions.  When I get the chance to meet you, the first round's on me!

Ron
Ron

Stella - Logan's Senior Project    78 750K http://forums.sohc4.net/index.php?topic=141761.0

Logan's Reward - CB500 and CB550 Cafes    http://forums.sohc4.net/index.php/topic,147787.0.html

Offline Stev-o

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Re: Project "Evolution" 78' CB750K... progress continues
« Reply #86 on: April 26, 2015, 06:18:22 AM »
You make it look so easy, Wilbur!  Now we are want cherry pickers. Great post.
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline seanbarney41

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Re: Project "Evolution" 78' CB750K... progress continues
« Reply #87 on: April 26, 2015, 07:29:34 AM »
You make it look so easy, Wilbur!  Now we are want cherry pickers. Great post.
+1...that thing is better than a frame kit imo...what would it take for you to build me one of those and ship it to me
If it works good, it looks good...

Offline SOHC4 Cafe Racer Fan

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Re: Project "Evolution" 78' CB750K... progress continues
« Reply #88 on: April 26, 2015, 07:59:55 AM »
Well done, Wilbur.  That cherry picker looks like overkill, but saved your back and knuckles!!
1975 CB550K1 "Blue" Stockish Restomod (http://forums.sohc4.net/index.php?topic=135005.0)
1975 CB550F1 frame/CB650 engine hybrid "The Hot Mess" (http://forums.sohc4.net/index.php/topic,150220.0.html)
2008 Triumph Thruxton (http://forums.sohc4.net/index.php/topic,190956.0.html)
2014 MV Agusta Brutale Dragster 800
2015 Yamaha FZ-09 (http://forums.sohc4.net/index.php/topic,186861.0.html)

"There are some things nobody needs in this world, and a bright-red, hunch-back, warp-speed 900cc cafe racer is one of them — but I want one anyway, and on some days I actually believe I need one.... Being shot out of a cannon will always be better than being squeezed out of a tube. That is why God made fast motorcycles, Bubba." Hunter S. Thompson, Song of the Sausage Creature, Cycle World, March 1995.  (http://www.latexnet.org/~csmith/sausage.html and https://magazine.cycleworld.com/article/1995/3/1/song-of-the-sausage-creature)

Sold/Emeritus
1973 CB750K2 "Bionic Mongrel" (http://forums.sohc4.net/index.php?topic=132734.0) - Sold
1977 CB750K7 "Nine Lives" Restomod (http://forums.sohc4.net/index.php?topic=50490.0) - Sold
2005 RVT1000RR RC51-SP2 "El Diablo" - Sold
2016+ Triumph Thruxton 1200 R (http://forums.sohc4.net/index.php/topic,170198.0.html) - Sold

Offline madmtnmotors

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Re: Project "Evolution" 78' CB750K... progress continues
« Reply #89 on: April 26, 2015, 03:23:49 PM »
Good job Wilbur... ;)   I didn't see any beers...? I'll assume they were already disposed of..?   ;D ;)

This is the point that I actually started drinking. If I start drinking too early I lose interest in other tasks pretty quickly!  8)


You make it look so easy, Wilbur!  Now we are want cherry pickers. Great post.

The hardest part is putting the leg extensions in place on the hoist!  :)


...that thing is better than a frame kit imo...what would it take for you to build me one of those and ship it to me

I built the hook from scrap tube steel laying around the garage. Probably less than an hour fab time. I can whip up a dimensioned drawing if you like!  8)


Well done, Wilbur.

Thanks to all that have posted!  8)


That cherry picker looks like overkill

When it comes to my aging back, it is my contention that there is no such thing as overkill!   ;)  ;D
TAMTF...


Wilbur



Projects:
"Evolution": http://forums.sohc4.net/index.php?topic=100352.0
"P.O. Debacle": http://forums.sohc4.net/index.php/topic,126692.msg1441661.html#msg1441661
F2/F3 O-rings: http://forums.sohc4.net/index.php?topic=113672.msg1300721#msg1300721
Cam Tower Studs: https://www.mcmaster.com/#93210a017/=t19sgp
Clean up that nasty harness: http://forums.sohc4.net/index.php?topic=137351.msg1549191#msg1549191
http://forums.sohc4.net/index.php/topic,148188.msg1688494.html#msg1688494
http://forums.sohc4.net/index.php/topic,139544.msg1579364.html#msg1579364
                                          
Charging system diagnosis: http://forums.sohc4.net/index.php?topic=1012.msg8345#msg8345
Get the manuals: http://manuals.sohc4.net/cb750k/
The Dragon: http://forums.sohc4.net/index.php?topic=45183.msg1571675#msg1571675
Headlight Switch: http://forums.sohc4.net/index.php?topic=113986.msg1283236#msg1283236
Branden's leak free top end thread: http://forums.sohc4.net/index.php?topic=107040.0
Engine Lifting Made Easy: http://forums.sohc4.net/index.php/topic,58210.msg1684742.html#msg1684742
                                      http://forums.sohc4.net/index.php/topic,100352.msg1675840.html#msg1675840
Static and Dynamic Timing: http://www.hondachopper.com/garage/carb_info/timing/timing1.html
Airbox Gasket Replacement: http://forums.sohc4.net/index.php/topic,114485.msg1290000.html#msg1290000
"Café" : http://forums.sohc4.net/index.php/topic,84697.msg953814.html#msg953814
PD Carb Choke Linkage: http://forums.sohc4.net/index.php/topic,100352.msg1669248.html#msg1669248
                                    http://forums.sohc4.net/index.php/topic,110931.msg1248354.html#msg1248354
                                    http://forums.sohc4.net/index.php/topic,48858.msg515204.html#msg515204
Follow up on your damn posts: http://forums.sohc4.net/index.php/topic,144305.msg1791605.html#msg1791605
Taiwanese Cam Chain Tensioners:  http://forums.sohc4.net/index.php/topic,155043.msg1774841.html#msg1774841
Gumtwo Seat Cover: http://forums.sohc4.net/index.php/topic,164440.msg1897366.html#msg1897366
Primary Drive: http://forums.sohc4.net/index.php/topic,166063.msg1919278.html#msg1919278
Tank Latch: http://forums.sohc4.net/index.php/topic,165975.msg1919495.html#msg1919495
Shorten your forks: http://vintage-and-classic-honda-s.456789.n3.nabble.com/How-to-shorten-forks-td4042465.html DO NOT CUT THE SPRINGS!
Clutch How To: http://vintage-and-classic-honda-s.456789.n3.nabble.com/How-to-change-and-adjust-a-clutch-SOHC-td4040391.html
Late model K7/K8/F2/F3 front sprocket cover removal: http://forums.sohc4.net/index.php/topic,178428.msg2072279.html#msg2072279
630 to 530 conversion: http://forums.sohc4.net/index.php/topic,180710.msg2094423.html#msg2094423

Sent from my Tandy TRS-80!

Offline madmtnmotors

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  • Posts: 6,090
  • Sunny Central Florida
Re: Project "Evolution" 78' CB750K... progress continues
« Reply #90 on: April 26, 2015, 03:25:09 PM »
When I get the chance to meet you, the first round's on me!


Deal!  8)
TAMTF...


Wilbur



Projects:
"Evolution": http://forums.sohc4.net/index.php?topic=100352.0
"P.O. Debacle": http://forums.sohc4.net/index.php/topic,126692.msg1441661.html#msg1441661
F2/F3 O-rings: http://forums.sohc4.net/index.php?topic=113672.msg1300721#msg1300721
Cam Tower Studs: https://www.mcmaster.com/#93210a017/=t19sgp
Clean up that nasty harness: http://forums.sohc4.net/index.php?topic=137351.msg1549191#msg1549191
http://forums.sohc4.net/index.php/topic,148188.msg1688494.html#msg1688494
http://forums.sohc4.net/index.php/topic,139544.msg1579364.html#msg1579364
                                          
Charging system diagnosis: http://forums.sohc4.net/index.php?topic=1012.msg8345#msg8345
Get the manuals: http://manuals.sohc4.net/cb750k/
The Dragon: http://forums.sohc4.net/index.php?topic=45183.msg1571675#msg1571675
Headlight Switch: http://forums.sohc4.net/index.php?topic=113986.msg1283236#msg1283236
Branden's leak free top end thread: http://forums.sohc4.net/index.php?topic=107040.0
Engine Lifting Made Easy: http://forums.sohc4.net/index.php/topic,58210.msg1684742.html#msg1684742
                                      http://forums.sohc4.net/index.php/topic,100352.msg1675840.html#msg1675840
Static and Dynamic Timing: http://www.hondachopper.com/garage/carb_info/timing/timing1.html
Airbox Gasket Replacement: http://forums.sohc4.net/index.php/topic,114485.msg1290000.html#msg1290000
"Café" : http://forums.sohc4.net/index.php/topic,84697.msg953814.html#msg953814
PD Carb Choke Linkage: http://forums.sohc4.net/index.php/topic,100352.msg1669248.html#msg1669248
                                    http://forums.sohc4.net/index.php/topic,110931.msg1248354.html#msg1248354
                                    http://forums.sohc4.net/index.php/topic,48858.msg515204.html#msg515204
Follow up on your damn posts: http://forums.sohc4.net/index.php/topic,144305.msg1791605.html#msg1791605
Taiwanese Cam Chain Tensioners:  http://forums.sohc4.net/index.php/topic,155043.msg1774841.html#msg1774841
Gumtwo Seat Cover: http://forums.sohc4.net/index.php/topic,164440.msg1897366.html#msg1897366
Primary Drive: http://forums.sohc4.net/index.php/topic,166063.msg1919278.html#msg1919278
Tank Latch: http://forums.sohc4.net/index.php/topic,165975.msg1919495.html#msg1919495
Shorten your forks: http://vintage-and-classic-honda-s.456789.n3.nabble.com/How-to-shorten-forks-td4042465.html DO NOT CUT THE SPRINGS!
Clutch How To: http://vintage-and-classic-honda-s.456789.n3.nabble.com/How-to-change-and-adjust-a-clutch-SOHC-td4040391.html
Late model K7/K8/F2/F3 front sprocket cover removal: http://forums.sohc4.net/index.php/topic,178428.msg2072279.html#msg2072279
630 to 530 conversion: http://forums.sohc4.net/index.php/topic,180710.msg2094423.html#msg2094423

Sent from my Tandy TRS-80!

Offline madmtnmotors

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Re: Project "Evolution" 78' CB750K... progress continues
« Reply #91 on: May 08, 2015, 10:53:08 PM »
Quick update:

>New clutch friction plates installed
>Battery tray mounted
>Tool tray mounted
>Oil tank and lines mounted
>Coils mounted
>Wiring harness install has begun
>Disassembled/thoroughly cleaned/reassembled clutch safety switch
>Front fender mounted:



>Gauges mounted
>Headlight bucket mounted. The 77/78 K model fork ears are like hens teeth. Finally settled on aftermarket headlight brackets, just need to decide on front turn signal mounts now:






Mother's day weekend plans:
>Press in new front wheel bearings
>Install new front tire (with new tube)
>Install newly rebuilt caliper with new piston and pads
>Install Dyna ignition
>Install newly rebuilt carbs (with new manifolds)
>Install handlebar controls
>Install misc cabling and wiring
>Install remaining engine mounts

Should be a runner soon!  8)
TAMTF...


Wilbur



Projects:
"Evolution": http://forums.sohc4.net/index.php?topic=100352.0
"P.O. Debacle": http://forums.sohc4.net/index.php/topic,126692.msg1441661.html#msg1441661
F2/F3 O-rings: http://forums.sohc4.net/index.php?topic=113672.msg1300721#msg1300721
Cam Tower Studs: https://www.mcmaster.com/#93210a017/=t19sgp
Clean up that nasty harness: http://forums.sohc4.net/index.php?topic=137351.msg1549191#msg1549191
http://forums.sohc4.net/index.php/topic,148188.msg1688494.html#msg1688494
http://forums.sohc4.net/index.php/topic,139544.msg1579364.html#msg1579364
                                          
Charging system diagnosis: http://forums.sohc4.net/index.php?topic=1012.msg8345#msg8345
Get the manuals: http://manuals.sohc4.net/cb750k/
The Dragon: http://forums.sohc4.net/index.php?topic=45183.msg1571675#msg1571675
Headlight Switch: http://forums.sohc4.net/index.php?topic=113986.msg1283236#msg1283236
Branden's leak free top end thread: http://forums.sohc4.net/index.php?topic=107040.0
Engine Lifting Made Easy: http://forums.sohc4.net/index.php/topic,58210.msg1684742.html#msg1684742
                                      http://forums.sohc4.net/index.php/topic,100352.msg1675840.html#msg1675840
Static and Dynamic Timing: http://www.hondachopper.com/garage/carb_info/timing/timing1.html
Airbox Gasket Replacement: http://forums.sohc4.net/index.php/topic,114485.msg1290000.html#msg1290000
"Café" : http://forums.sohc4.net/index.php/topic,84697.msg953814.html#msg953814
PD Carb Choke Linkage: http://forums.sohc4.net/index.php/topic,100352.msg1669248.html#msg1669248
                                    http://forums.sohc4.net/index.php/topic,110931.msg1248354.html#msg1248354
                                    http://forums.sohc4.net/index.php/topic,48858.msg515204.html#msg515204
Follow up on your damn posts: http://forums.sohc4.net/index.php/topic,144305.msg1791605.html#msg1791605
Taiwanese Cam Chain Tensioners:  http://forums.sohc4.net/index.php/topic,155043.msg1774841.html#msg1774841
Gumtwo Seat Cover: http://forums.sohc4.net/index.php/topic,164440.msg1897366.html#msg1897366
Primary Drive: http://forums.sohc4.net/index.php/topic,166063.msg1919278.html#msg1919278
Tank Latch: http://forums.sohc4.net/index.php/topic,165975.msg1919495.html#msg1919495
Shorten your forks: http://vintage-and-classic-honda-s.456789.n3.nabble.com/How-to-shorten-forks-td4042465.html DO NOT CUT THE SPRINGS!
Clutch How To: http://vintage-and-classic-honda-s.456789.n3.nabble.com/How-to-change-and-adjust-a-clutch-SOHC-td4040391.html
Late model K7/K8/F2/F3 front sprocket cover removal: http://forums.sohc4.net/index.php/topic,178428.msg2072279.html#msg2072279
630 to 530 conversion: http://forums.sohc4.net/index.php/topic,180710.msg2094423.html#msg2094423

Sent from my Tandy TRS-80!

Offline Bill/BentON Racing

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    • BentON Racing
Re: Project "Evolution" 78' CB750K... progress continues
« Reply #92 on: May 09, 2015, 03:22:15 PM »
K, previous PO quite the mechanic! Funny read,  Bill
BentON Racing Website
OEM Parts | Service | Custom Builds
BentON Racing Facebook
Over 35 years of experience working on vintage motorcycles, with a speciality in Honda SOHC/4 with a focus on the CB750 and other models as well from 1966 - 1985.
______________________________________
1993 HRC RS125 | 1984 NS400R | 1974 Honda CB750/836cc (Calendar Girl) | 1972 CB 500/550 Yoshi Kitted 590cc | 1965 Honda CB450 Black Bomber | 1972 Suzuki T350 | 1973 88cc | Z50/Falcons Pit Bike | 1967 CA100| 1974 CB350 (400F motor)...and more.
______________________________________
See our latest build 'Captain Marvel' CLICK HERE

Offline Stev-o

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  • Central Texas
Re: Project "Evolution" 78' CB750K... progress continues
« Reply #93 on: May 27, 2015, 07:54:31 PM »
How'd Mothers Day weekend go?
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline madmtnmotors

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  • Posts: 6,090
  • Sunny Central Florida
Re: Project "Evolution" 78' CB750K... progress continues
« Reply #94 on: May 28, 2015, 04:45:25 AM »
Progress has been made! Been holding out on an update until I got some pictures, but here's a quick rundown of where it's at:

>Pressed in new front wheel bearings.
>Installed and (static) balanced new front tire (with new tube and rim strip).
>Installed newly rebuilt caliper with new piston, SS braided line, and new pads.
>Rebuilt the starter solenoid, only because I learned that it was possible from Hondaman's book! The solenoid I have has seen very little use, but I flipped the contactors anyway and they are now as good as they were when new (picts to follow).
>Installed new 104 link 530 chain and 17/48 sprockets.
>Installed dual point ignition, static timed with ohmmeter. I will circle the mounting screw heads on the points plate for future reference and install the Dyna S after the 500 mile break in. The points plate (and cam) will serve as "plan B" should the Dyna ignition fail on a long road trip. I will also pass this along to the next owner.
>Installed newly rebuilt carbs, with new manifolds and new airbox boots.
>Installed handlebar controls.
>Installed rear fender, grab bar, taillight, and rear turn signals.
>Installed misc cabling and wiring.
>Installed remaining engine mounts.
>Welded up some cracks in the seat pan and welded in a new corner piece. Primed and painted the seat pan, just have to install "gator teeth" strips and stretch the new cover on the seat.
>Found the chain guard, just need to clean it up and get it painted.


>It's a runner! Got it started on Memorial Day, making for an even more memorable day. Sounds pretty friggin sweet too, and I haven't even put a timing light on it or synced the carbs yet (static timed with ohmmeter only). Idles smoothly at 1K after short warm up. Starts instantly. Ran it through eight or ten warm-up/cool down cycles (with fans!) over the course of Monday afternoon.

Now I'm Jonesing to get started with the 500 mile break-in on the new pistons/rings!  8)
TAMTF...


Wilbur



Projects:
"Evolution": http://forums.sohc4.net/index.php?topic=100352.0
"P.O. Debacle": http://forums.sohc4.net/index.php/topic,126692.msg1441661.html#msg1441661
F2/F3 O-rings: http://forums.sohc4.net/index.php?topic=113672.msg1300721#msg1300721
Cam Tower Studs: https://www.mcmaster.com/#93210a017/=t19sgp
Clean up that nasty harness: http://forums.sohc4.net/index.php?topic=137351.msg1549191#msg1549191
http://forums.sohc4.net/index.php/topic,148188.msg1688494.html#msg1688494
http://forums.sohc4.net/index.php/topic,139544.msg1579364.html#msg1579364
                                          
Charging system diagnosis: http://forums.sohc4.net/index.php?topic=1012.msg8345#msg8345
Get the manuals: http://manuals.sohc4.net/cb750k/
The Dragon: http://forums.sohc4.net/index.php?topic=45183.msg1571675#msg1571675
Headlight Switch: http://forums.sohc4.net/index.php?topic=113986.msg1283236#msg1283236
Branden's leak free top end thread: http://forums.sohc4.net/index.php?topic=107040.0
Engine Lifting Made Easy: http://forums.sohc4.net/index.php/topic,58210.msg1684742.html#msg1684742
                                      http://forums.sohc4.net/index.php/topic,100352.msg1675840.html#msg1675840
Static and Dynamic Timing: http://www.hondachopper.com/garage/carb_info/timing/timing1.html
Airbox Gasket Replacement: http://forums.sohc4.net/index.php/topic,114485.msg1290000.html#msg1290000
"Café" : http://forums.sohc4.net/index.php/topic,84697.msg953814.html#msg953814
PD Carb Choke Linkage: http://forums.sohc4.net/index.php/topic,100352.msg1669248.html#msg1669248
                                    http://forums.sohc4.net/index.php/topic,110931.msg1248354.html#msg1248354
                                    http://forums.sohc4.net/index.php/topic,48858.msg515204.html#msg515204
Follow up on your damn posts: http://forums.sohc4.net/index.php/topic,144305.msg1791605.html#msg1791605
Taiwanese Cam Chain Tensioners:  http://forums.sohc4.net/index.php/topic,155043.msg1774841.html#msg1774841
Gumtwo Seat Cover: http://forums.sohc4.net/index.php/topic,164440.msg1897366.html#msg1897366
Primary Drive: http://forums.sohc4.net/index.php/topic,166063.msg1919278.html#msg1919278
Tank Latch: http://forums.sohc4.net/index.php/topic,165975.msg1919495.html#msg1919495
Shorten your forks: http://vintage-and-classic-honda-s.456789.n3.nabble.com/How-to-shorten-forks-td4042465.html DO NOT CUT THE SPRINGS!
Clutch How To: http://vintage-and-classic-honda-s.456789.n3.nabble.com/How-to-change-and-adjust-a-clutch-SOHC-td4040391.html
Late model K7/K8/F2/F3 front sprocket cover removal: http://forums.sohc4.net/index.php/topic,178428.msg2072279.html#msg2072279
630 to 530 conversion: http://forums.sohc4.net/index.php/topic,180710.msg2094423.html#msg2094423

Sent from my Tandy TRS-80!

Offline calj737

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Re: Project "Evolution" 78' CB750K... progress continues
« Reply #95 on: May 28, 2015, 05:20:38 AM »
Congrats, Wilnur!  ;) All that hard work, and then Piano! It's ready for riding-
'74 550 Build http://forums.sohc4.net/index.php?topic=126401.0
'73 500 Build http://forums.sohc4.net/index.php?topic=132935.0

"Of all tyrannies, a tyranny sincerely exercised for the good of it's victim may be the most oppressive. It may be better to live under robber barons than under omnipotent moral busybodies. The robber baron's cruelty may sometimes sleep, his cupidity may at some point be satiated, but those who torment us for our own good will torment us without end for they do so with the approval of their own conscience." - C.S. Lewis

Offline Stev-o

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  • Central Texas
Re: Project "Evolution" 78' CB750K... progress continues
« Reply #96 on: May 28, 2015, 05:40:10 AM »
Yes, congrats.  The sweet reward of a rebuild is a good running motor. 
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline Retro Rocket

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Re: Project "Evolution" 78' CB750K... progress continues
« Reply #97 on: May 28, 2015, 03:27:25 PM »
Good stuff Wilbur... ;)
750 K2 1000cc
750 F1 970cc
750 Bitsa 900cc
If You can't fix it with a hammer, You've got an electrical problem.

Offline madmtnmotors

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  • Sunny Central Florida
Re: Project "Evolution" 78' CB750K... TRANSFORMATION COMPLETE!
« Reply #98 on: June 09, 2015, 07:02:28 PM »
First of all, a little recap of the final stages:

New, 1mm over (62mm, 4th over) pistons fitted, now displacing 761cc!:






Starter solenoid refurbished thanks to info found in Hondaman's book:




Newly rebuilt carbs in place:




BUH-LING!




Contrary to popular belief, the later model fuel valves can be rebuilt:



Can anyone tell which one is the new seal?



Leave as much of the nubs as possible:



Voila'! (as opposed to "viola'" which everyone knows is a musical instrument)  ;)



Good for another 40 years! Good thing too, since this can only probably be done once, which is okay... because 40 years from now I won't care!



New gator teeth upholstery strips riveted to the seat pan to hold the new seat cover:




New skin stretched into place:




All that work just for this:






And now for a little history lesson in before and after format:

BEFORE




AFTER




Before:




After:




Before:

*Telltale fuel stains on carb bowl and starter cover



After: (where did all the oily grime and fuel stains go?)





Before:

*A return assist spring on the rear brake lever?




After (amazing how well things work when properly assembled):




Before:

*The clutch cable has become one with the #4 header, OMG WHERE'S THE ENGINE MOUNT?!



After:




Before

*I think the fork seals finally quit leaking since it looks like there might not be any fork oil left IN the forks...



After, with new braided stainless flex line fitted:




Before:

*Hopefully there's still some oil left in the engine. OMG! WHERE'S THE MOTOR MOUNT BOLT?!



After (where did all the oily grime go?):




Before:

*A string around the "Idiot" lights as some sort of reminder?


*Ahhh... obviously a reminder to purchase the correct ignition switch! The string is the only thing holding the switch in place... anybody need an early model ignition switch (with two keys)?



After:




After painting all the bits and bobs, the following components received a topcoat of Spraymax 2K clear to promote durability, chemical, and insect resistance:
>Speedo and tach
>Master cylinder
>Caliper
>Side covers
>All the badges

Don't know about the fuel tank, it was a used part. Overall everything looks very good. You have to get within about three feet to start detecting the imperfections. If a component was fully functional it was cleaned (and painted or polished if necessary) then pressed back into service.

I am quite pleased with how this turned out. Idles good, shifts great, which makes me glad I did not split the lower cases. With less than 20,000 miles I did not expect any surprises down low. I am now 60% into the 500 mile break in (300 miles down!) with just a couple quirks. When I arrived at the fuel station for the first official fill up, I noticed an oil-like substance dripping from the area of the front sprocket. Holy crap! Output shaft seal is leaking! So I fill up and go back to the garage. After removing the chain, front sprocket, and sprocket cover turns out I was merely over-zealous with the chain lube and it was sloughing it off everywhere. Cool, I can deal with that.

So I put it all back together and take off back down the road only to have the ignition start balking at my efforts to operate this thing by only hitting on two or three cylinders! So back to the garage yet again. Since I had pressed a used points plate into service I decided to replace the condensers. Turns out the yellow wire was pinched between the old condensers and there was a break in the wire. Damn thing started shorting out! Fixed the insulation and replaced the condensers just on general principal.

That was 280 miles ago. Not a hiccup since.  8)


Left to do at the 500 mile service:

>Change out the Bel-Ray EXL 4T for a fresh dose (filter too!)
>Replace the damn neutral indicator switch that insists on continuously indicating a neutral condition...
>Clean, sand, and apply high temp black to the header pipes
>Check valve lash
>Re-sync the carbs
>Inspect the plugs
>Check slack in the drive chain
>Adjust cam chain
>Replace the points plate with a Dyna S. The current points/condensers setup was more for practice than anything else. The timed (and indexed) points plate (with points cam) will be provided to the N.O. (next owner)
>Ride the crap out of it!


VOILA'!
« Last Edit: June 09, 2015, 07:08:07 PM by madmtnmotors »
TAMTF...


Wilbur



Projects:
"Evolution": http://forums.sohc4.net/index.php?topic=100352.0
"P.O. Debacle": http://forums.sohc4.net/index.php/topic,126692.msg1441661.html#msg1441661
F2/F3 O-rings: http://forums.sohc4.net/index.php?topic=113672.msg1300721#msg1300721
Cam Tower Studs: https://www.mcmaster.com/#93210a017/=t19sgp
Clean up that nasty harness: http://forums.sohc4.net/index.php?topic=137351.msg1549191#msg1549191
http://forums.sohc4.net/index.php/topic,148188.msg1688494.html#msg1688494
http://forums.sohc4.net/index.php/topic,139544.msg1579364.html#msg1579364
                                          
Charging system diagnosis: http://forums.sohc4.net/index.php?topic=1012.msg8345#msg8345
Get the manuals: http://manuals.sohc4.net/cb750k/
The Dragon: http://forums.sohc4.net/index.php?topic=45183.msg1571675#msg1571675
Headlight Switch: http://forums.sohc4.net/index.php?topic=113986.msg1283236#msg1283236
Branden's leak free top end thread: http://forums.sohc4.net/index.php?topic=107040.0
Engine Lifting Made Easy: http://forums.sohc4.net/index.php/topic,58210.msg1684742.html#msg1684742
                                      http://forums.sohc4.net/index.php/topic,100352.msg1675840.html#msg1675840
Static and Dynamic Timing: http://www.hondachopper.com/garage/carb_info/timing/timing1.html
Airbox Gasket Replacement: http://forums.sohc4.net/index.php/topic,114485.msg1290000.html#msg1290000
"Café" : http://forums.sohc4.net/index.php/topic,84697.msg953814.html#msg953814
PD Carb Choke Linkage: http://forums.sohc4.net/index.php/topic,100352.msg1669248.html#msg1669248
                                    http://forums.sohc4.net/index.php/topic,110931.msg1248354.html#msg1248354
                                    http://forums.sohc4.net/index.php/topic,48858.msg515204.html#msg515204
Follow up on your damn posts: http://forums.sohc4.net/index.php/topic,144305.msg1791605.html#msg1791605
Taiwanese Cam Chain Tensioners:  http://forums.sohc4.net/index.php/topic,155043.msg1774841.html#msg1774841
Gumtwo Seat Cover: http://forums.sohc4.net/index.php/topic,164440.msg1897366.html#msg1897366
Primary Drive: http://forums.sohc4.net/index.php/topic,166063.msg1919278.html#msg1919278
Tank Latch: http://forums.sohc4.net/index.php/topic,165975.msg1919495.html#msg1919495
Shorten your forks: http://vintage-and-classic-honda-s.456789.n3.nabble.com/How-to-shorten-forks-td4042465.html DO NOT CUT THE SPRINGS!
Clutch How To: http://vintage-and-classic-honda-s.456789.n3.nabble.com/How-to-change-and-adjust-a-clutch-SOHC-td4040391.html
Late model K7/K8/F2/F3 front sprocket cover removal: http://forums.sohc4.net/index.php/topic,178428.msg2072279.html#msg2072279
630 to 530 conversion: http://forums.sohc4.net/index.php/topic,180710.msg2094423.html#msg2094423

Sent from my Tandy TRS-80!

Offline Stev-o

  • Ain't no
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  • Posts: 34,259
  • Central Texas
Re: Project "Evolution" 78' CB750K... progress continues
« Reply #99 on: June 09, 2015, 07:15:23 PM »
GREAT job and post, Wilbur!   Love the commentary on the "before" pics.
Damn PO's.

You are being nominated for BOTM for your superb workmanship!


PS. Yes, I could use an early ignition switch.
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........