SOHC.co.uk Forums > CB500/550

Engine rebuild, what's gone wrong?

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Jimbo550:
Hello all. After rebuilding the bottom end of my 550 it was time to fire it up today and see how it sounded. The answer was Terrible!!  Initial problem was the starter wasn't working but that could be a flat battery or missed a wire somewhere. I decided to kick it over and she fired up pretty much straight away but I have a terrible noise from the kickstart shaft. When I start to give it revs the kick start is jumping/rattling and the noise gets louder. Any ideas what I've done wrong?

Bryanj:
Sounds like you haven't got the pawl mechanism in correctly, unfortunately if it's the bit I think you need to split the crankcases again, sorry

Jimbo550:
I seem to think that if I take the sump off  I can get to the circlip in order to remove the kickstart shaft but I may be wrong.  Previously before I built up I had a snag with the kickstart ratchet not disengaging but I fixed that, or so I thought!!

Bryanj:
People tell me it's possible but I never managed it, also if that circlip pops off in use majour damage will result. I suspect that the "Leg" of the plate part of the mechanism is not in the slot in the crankcase

Jimbo550:
I'm pretty sure that the leg was located in the slot as I previously had problems with the ratchets not disengaging. I doesn't sound like ratchets, it almost sounds like a bearing may be spinning in its casting. Gonna drop the sump tomorrow and have a look inside to see if I can see anything.  I'll keep you informed on my findings.

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