Honda-SOHC

SOHC.co.uk Forums => CB750 => Topic started by: stevie750 on March 05, 2008, 08:08:51 PM

Title: drive chain
Post by: stevie750 on March 05, 2008, 08:08:51 PM

Hi there,
on the home straight of doing my re-build.

Noticed my drive-chain is not locating properly in sprocket.

checked the work shop manual for the right pitch with no luck.

would anybody know the right amount of links & pitch of chain for a K5 Honda 750?

cheers
Stevie

Title: Re: drive chain
Post by: SteveD CB500K0 on March 05, 2008, 09:54:49 PM

I believe that all bar the later Ks (K7/8?) used 520 chain.

Title: Re: drive chain
Post by: Voxonda on March 06, 2008, 06:45:29 AM

Quote from: SteveD CB500F on March 05, 2008, 09:54:49 PM

I believe that all bar the later Ks (K7/8?) used 520 chain.

Hey Steve, I think you're wrong there, the later K7/F2 had 630 chain, hence the wider chainline.

Cheers, Rob

Title: Re: drive chain
Post by: SteveD CB500K0 on March 06, 2008, 07:05:25 AM

I think that's what I said Rob.

K0-K6: 520
K7-F2: 630

Still don't know the number of links though.  Don't most chains come with 110-ish and you cut them down and rivet them?

Title: Re: drive chain
Post by: Voxonda on March 06, 2008, 09:21:45 AM

Quote from: SteveD CB500F on March 06, 2008, 07:05:25 AM

I think that's what I said Rob.

K0-K6: 520
K7-F2: 630

Still don't know the number of links though.  Don't most chains come with 110-ish and you cut them down and rivet them?

Sorry Steve, misread it!

Cheers, Rob

Title: Re: drive chain
Post by: Phil on March 17, 2008, 07:34:09 PM

Beware!! Not all swinging arms are interchangeable. The K7 hub/ swing arm is wider and longer than the K6. I think this was to accommodate that  wider 17 inch tyre on the K7. Phil

Title: Re: drive chain
Post by: Voxonda on March 17, 2008, 09:30:45 PM

That's right, and the F2/K7 have also wider bearings at the outgoing shaft (sorry for my bad enlish here) to cope with the altered chain position caused by the wider rim/tyre combo.

Title: Re: drive chain
Post by: Phil on March 22, 2008, 12:11:45 PM

This is of interest to me! I have been advised to use a 2.75 (or preferably 3 ) inch wide rim on the rear wheel in order to be able to use the best racing tire section. I am concerned that if I fit this wide rim and tire, the chain will foul the edge of the tire. The engine is based on a K7, the frame a K4. I have swinging arms from the K7 and the K4. I have rear hubs from the K7 and K4. Would using the K7 swinging arm and the K7 rear hub provide more clearance for the chain? Thanks guys!! Phil

Title: Re: drive chain
Post by: Voxonda on March 22, 2008, 12:46:16 PM

Hey Phil,

You can always use a set of off-set sprockets.
(http://i238.photobucket.com/albums/ff74/voxonda/first20front.jpg)
10 or 20 m/m off-set.

Cheers, Rob

Title: Re: drive chain
Post by: Bryanj on March 22, 2008, 12:58:45 PM

530 not 520 chain on the early ones Steve

Title: Re: drive chain
Post by: stevie750 on March 24, 2008, 10:32:47 PM

cheers for all the info guys.
Got a 530 with 102 links.
cheers Stevie

Title: Re: drive chain
Post by: lordmoonpie on April 08, 2008, 12:40:26 PM

Early K's are definitely 530 stock - I've just converted mine to 520....