Bright shiny studs-early bad ones, black-good.
Paper seal was originally used on a cover, when they
discontinued them bond was used.
Engine: Any sign of oil leak behind belt double wheel?
I’d check starter sprag and what it grips on. Do observe
shims behind when you reassemble flywheel!
Clutch basket and pack usually worn. Slave leaking?
Did oil warning light work? Easily replaced.
If neutral light don’t work, replace cable, nothing wrong w engine.
Valve clearances ok? If not, worn cams?
Carbs, often needle jets are worn, replace.
Nothing major happends w these engines, pretty bullet proof,
only the dreaded crank alu screw backing out after many miles.
Can be checked w barrels off. Alu shavings in oil is a sign of this happening.
Do check
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