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Author Topic: Project 1978 CB 750k need help and advice  (Read 966 times)

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Offline norom

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Project 1978 CB 750k need help and advice
« on: July 11, 2011, 12:42:59 PM »
I just bought this and I need alot of help getting parts and getting it up and running. I need a rear fender, airbox, exhaust collars and alot more. I'm seventeen and bought this as a project bike for me and my dad any advice would be great to have. Like anything i should be worried about or things that could help me along the way. thanks again
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Offline gnarlycharlie4u

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Re: Project 1978 CB 750k need help and advice
« Reply #1 on: July 11, 2011, 12:48:32 PM »
Quote from: norom on July 11, 2011, 12:42:59 PM
I just bought this and I need alot of help getting parts and getting it up and running. I need a rear fender, airbox, exhaust collars and alot more. I'm seventeen and bought this as a project bike for me and my dad any advice would be great to have. Like anything i should be worried about or things that could help me along the way. thanks again

I have a rear fender, and airbox  if you need it.

As far as getting it up and running... we'll need a bit more info than that. Like what's wrong with it.

Here's a good place to start if you have questions about specific things:
http://forums.sohc4.net/index.php?board=11.0
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Offline Tripps

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Re: Project 1978 CB 750k need help and advice
« Reply #2 on: July 11, 2011, 12:51:17 PM »
You picked a great bike, I also have a 78 CB750K, and I love it.
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The greatest obstacle to discovery is not ignorance, it is the illusion of knowledge- Daniel J Boorstin

Offline madmtnmotors

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Re: Project 1978 CB 750k need help and advice
« Reply #3 on: July 11, 2011, 03:16:50 PM »
Exhaust collars? Do you mean the collars and inserts that were used on the 77' 78' exhaust, or are you talking about the spigots that were used on earlier models that the pipes actually clamp to?

The stock exhaust is shown, parts 1 and 2 are used to secure the stock pipe flange to the exhaust port on the head of the 78' 750K.
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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 norom

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Re: Project 1978 CB 750k need help and advice
« Reply #4 on: July 17, 2011, 02:10:57 PM »
Thank you for getting back to me, yeah if you have the fender and the airbox I would love to get them off of you for the right price. About the collars I wouldn't know I bought the bike with no carbs no exhaust at all and it just needs alot of things. Right now I have the headers and the mufflers but nothing else thanks again.
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Offline madmtnmotors

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Re: Project 1978 CB 750k need help and advice
« Reply #5 on: July 17, 2011, 02:16:55 PM »
Post a pict of the exhaust pipes (where they would connect to the engine). Is there a small flange on the end of each of the pipes? If so, they should be period correct for the 77'-78'.
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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 norom

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Re: Project 1978 CB 750k need help and advice
« Reply #6 on: July 18, 2011, 01:00:46 PM »
So I need one and two on the diagram you sent and thats all for the exhaust I have everything else i'll send those picks soon when I have my camera available thanks again
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Offline Bankerdanny

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Re: Project 1978 CB 750k need help and advice
« Reply #7 on: July 18, 2011, 01:22:26 PM »
A digital camera is definintely a tool to keep handy. Some questions just can't be answered without seeing the problem.  Although xSmooth69x has had pretty good luck with some crudely drawn diagrams. :)
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Current: '76 CB750F. Previous:  '75 CB550F, 2007 Yamaha Vino 125 Scooter, '75 Harley FXE Superglide, '77 GL1000, '77 CB550k, '68 Suzuki K10 80, '68 Yamaha YR2, '69 BMW R69S, '71 Honda SL175, '02 Royal Enfield Bullet 500, '89 Yamaha FJ1200
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