SOHC.co.uk Forums > CB650

Oil leak

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davefirestorm:
Oil leaking from area of the front sprocket on my CB650Z Where would  I be able to buy necessary  seal/gaskets

Matt_Harrington:
David Silvers ?

SteveW:
If it’s the seal behind the front sprocket it’s a stepped seal. Only way to replace is to split the cases.

Start with the gear shift shaft seal, that’s a 20 minute job. I found that you can replace without draining the oil if you lean the bike over against a tree or something solid.

davefirestorm:
Hopefully it’s the easy fix ie gearbox shift shaft seal 😁 Searched and found part number for the split seal and David Silvers can supply 👍

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