Originally Posted by frogonwheels
and this is my theory : upon removing the clutch, I had seen a groove on the vertical inside case and there was NO thrust washer at all. The whole basket must have been slightly loose, carved a groove, and locked both the washer and the key from that constant loading. Makes sense ?
Why do previous owners do stupid things ?
The cush-drive is always pulled up against the clutch hub shoulder by the nut and washer.There are no choices there.
The thrust washer behind the basket may have disintegrated or just been left out .It has no effect on the mainshaft washer or key.The thrust washer will effect sprocket alignment
,which you should first check ,adjust with shims at the crank sprocket,and verify
,by fitting the sprockets with no chain.The sprockets should be aligned within 0.010".
Other than that,the thrust washer controls rattle on the clutch basket,when the clutch is disengaged.