CB750 output shaft measurements needed

blparker

blparker

New Member
I have an output shaft out of a 76 CB750 Super Sport motor that needs to be adapted in order for this motor to fit in a 78 frame. The out put shaft from what I understand in 78 has a 10mm offset. So, I am trying to figure out the best way to do this. Either put in a shaft from a 78 motor (if it fits) or maybe buy a offset sprocket and flip it the direction I need to space out the sprocket in order to align it with the rear. Attached are images of the shaft out of my 76 SS motor.

IMG_2814.jpg


IMG_9038.jpg
 
I'm not familiar with the SOHC 750s and you dont say whether you require it 10mm wider or shorter. If shorter which maybe why your considering flipping an offset sprocket, you might run into clearance issues with the engine cases.
If you need it wider or longer, then the best solution would be the 78 shaft if it fits, I'd be surprised if they changed bearing sizes. Alternatively there are a few places that do offset sprockets for the SOHC I've seen them on ebay for less than $50. Whereas I had to get one made for a DOHC that cost me $150
 
You must log in or register to reply here.

DTT Light or Dark

  • DTT Light

    • Spread the Love

    Back
    Top Bottom