Originally Posted by SteveForbes
It's Alive!!!! I have been told by the previous owner that the main seal behind the clutch has always leaked. GREAT!!!! Now I need to fix that!!! Any suggestions???
I'd say the previous owner is wrong about the source of the oil.
You won't get much leakage from the primary case through the mainshaft seal,especially at cranking speed on a cold engine.
Look for the crankcase breather hose.
I tend to agree with others about the usefulness of a magneto.They are more troublesome than an alternator,so your chances of walking home aren't reduced.
The other downside of a Hunt magneto is no advance curve.You run full advace all the time,even at idle.You're more likely to melt pistons at low rpm;above 4000 rpm you can open the throttle as much as you like.