Honda-SOHC

SOHC.co.uk Forums => CB750 => Topic started by: Lkp on March 17, 2021, 06:54:05 PM

Title: Final drive shaft
Post by: Lkp on March 17, 2021, 06:54:05 PM

Hi everyone..

I've got a f2 cases and an f1 final drive will this be ok to use?

Title: Re: Final drive shaft
Post by: K2-K6 on March 17, 2021, 08:17:22 PM

The F2 (and paired K7) both use a larger final drive bearing to, I think, all the other 750s. This because they use 630 chain size.

I don't think the F1 bearing will fit, can you try and compare the output shaft mounting to give more certainty?

Title: Re: Final drive shaft
Post by: neilg on March 21, 2021, 06:19:52 PM

Because of the bigger bearing the engine sprocket is further away from the engine case by about 5mm, so chain alignment needs checking.

Title: Re: Final drive shaft
Post by: hairygit on March 21, 2021, 09:43:43 PM

The 750F0, F1, F2 and K 7 all use the same bearings on the final drive shaft, but the shafts are different part numbers for the F2 and K7.

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Title: Re: Final drive shaft
Post by: Bryanj on March 21, 2021, 10:34:33 PM

F1 andF2 have totally different sprocket retention method

Title: Re: Final drive shaft
Post by: robvangulik on March 21, 2021, 11:18:13 PM

+1, F1 has the same method as the earlier K types with 2 m6 bolts in the sprocket, the F2 has the central retaining bolt.