Author Topic: Winter project. K8  (Read 552 times)

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Offline dragracer

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Winter project. K8
« on: December 26, 2020, 10:46:39 pm »
I think I'll pull this one out of hibernation and make it a winter time project.  I gave some thought to a restoration but some hipo  modifications might suit me better. Maybe a ported head with oversized valves,  a bigger cam with an 836 kit will satisfy my need for speed but still leave it streetable.  Of course a longer swingarm is a must with the added power. Dang, I got a feeling this could lead to a deep hole in the pockets. Hahaha. 

Offline PeWe

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Re: Winter project. K8
« Reply #1 on: December 27, 2020, 10:40:11 am »
I guess you have some go faster parts on the shelf begging to be used ;)

Offline dragracer

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Re: Winter project. K8
« Reply #2 on: December 27, 2020, 11:03:07 am »
I guess you have some go faster parts on the shelf begging to be used ;)


Now what would make you think that?? 😆

Offline PeWe

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Re: Winter project. K8
« Reply #3 on: December 27, 2020, 01:34:40 pm »
Decades in the hunt to be faster and live close where most tuning parts are manufactured.

Tons of new as used parts must have been  and still is available everywhere around you!

It is difficult to not collect parts when available. It is something special with cams and ported heads ;)

Frame kit for a quick change to try another fun cam?
- You might have a favourite cam for this build?

Offline 754

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Re: Winter project. K8
« Reply #4 on: December 27, 2020, 02:10:47 pm »
How long on the arm.. ? I ran 6 over .. a bit too long .. was thinking  of 4.5  over . Then a  120 link chain will still fit with 54 tooth rear sprocket..
« Last Edit: December 27, 2020, 07:55:22 pm by 754 »
Maker of the WELDLESS 750 Frame Kit
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Kelowna B.C.       Canada

My next bike will be a ..ANFOB.....

It's All part of the ADVENTURE...

73 836cc.. Green, had it for 3 decades!!
Lost quite a few CB 750's along the way

Offline Prospect

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Re: Winter project. K8
« Reply #5 on: December 27, 2020, 02:27:16 pm »
I'm amazed how many cb750's had the 16" rim installed back in the day. All but one of my 750's had that chopper conversion done.
Current Bikes

1969 CB750  Sandcast #256
1971 CB750K1
1972 CB750K1
1975 CB400F
1975 GL1000 Goldwing
1954 Harley Davidson Panhead
1957 Harley Davidson Panhead

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Offline Alan F.

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Re: Winter project. K8
« Reply #6 on: December 27, 2020, 02:56:55 pm »
My K8 basket case still has its rusty 17, but it'll share my K3's 18/19 combo because I'm cheap.

Offline 754

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Re: Winter project. K8
« Reply #7 on: December 27, 2020, 03:25:44 pm »
16,s had more bite.. and  until 76 or 77 when Yokohama came out with a 4.60 .. no wide 18,s.
 16 cheaper to run , lasted longer..
Maker of the WELDLESS 750 Frame Kit
dodogas99@gmail.com
Kelowna B.C.       Canada

My next bike will be a ..ANFOB.....

It's All part of the ADVENTURE...

73 836cc.. Green, had it for 3 decades!!
Lost quite a few CB 750's along the way

Offline madmtnmotors

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Re: Winter project. K8
« Reply #8 on: December 27, 2020, 03:57:02 pm »
About time you got around to this one!  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
                                           http://oldmanhonda.com/MC/wiring750K1.html
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 MRieck

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Re: Winter project. K8
« Reply #9 on: December 27, 2020, 04:43:07 pm »
I like the dropped tank
Owner of the "Million Dollar CB"

Offline 754

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Re: Winter project. K8
« Reply #10 on: December 27, 2020, 07:56:01 pm »
I'm amazed how many cb750's had the 16" rim installed back in the day. All but one of my 750's had that chopper conversion done.

 It's a 17 inch on that one.... stock rim..
Maker of the WELDLESS 750 Frame Kit
dodogas99@gmail.com
Kelowna B.C.       Canada

My next bike will be a ..ANFOB.....

It's All part of the ADVENTURE...

73 836cc.. Green, had it for 3 decades!!
Lost quite a few CB 750's along the way

Offline dragracer

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Re: Winter project. K8
« Reply #11 on: December 27, 2020, 09:41:52 pm »
I'm amazed how many cb750's had the 16" rim installed back in the day. All but one of my 750's had that chopper conversion done.

 It's a 17 inch on that one.... stock rim..

Yeap. Stock but narrow 17" rear.  I got lucky and found a 5.5" ×17" polished aluminum band last year. I probably won't go over 6" but definitely need to be certain the arm is wide enough to fit a 180 tire. I'll use an 18" front to help lower the bike some. I don't intend to do much weight reduction or hack up this one. I intend to ride this one on the street some. I'll eventually return it back to stock condition as a daily rider restoration one day.

Mike, thats actually the stock k8 tank. It looks lower because I had the seat cut down with a step to lock my body in place when racing it.