Originally Posted by vintagerider
Its the loss of temper to the input splines that you may want to look after. In spite of all the postulations on sudden input spline failure it is actually caused by the owner over-heating on the side stand. Splash lubrication of oil originating in the clutch slave cavity can't make it to the splines while on the side stand.
Seriously? You think a motor hitting maybe 250-275° will remove the temper from the input splines?
You would have to melt the case to do that!