SOHC.co.uk Forums > CB750

Progress on the 750

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Johnny4428:
Seems to be a flat spot on the disc. I have checked other pics and they seem to be same.

Nurse Julie:

--- Quote from: Johnny4428 on January 19, 2022, 10:34:04 AM ---Thanks very much guys. Julie I have checked this and here is my pic taken just now.

--- End quote ---
Something is bent there John. I'm not saying it was but it could have happened by trying to force the gears. Best thing is to take all that lot apart and see if you can select gears manually by turning the selector drum by hand and rotating the back wheel. If you can select gears that way, it's a selector mechanism issue, if you can't select gears, it's an internal gearbox issue.

Johnny4428:
Thanks Julie, the gears all select smoothly with mechanism and no cover on. But I will take mech apart and re check, the thing is the selector drum and the neutral lever position cannot vary. The other things is I don’t like the way the alternator casing and the gear mech casing are absolutely jamming against each other.


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Johnny4428:
It’s sorted! Working great through all gears. This definitely helped.

Johnny4428:
And a small hand file where it was jamming. Not much clearance going into second gear!

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