YS140L Problem

[Don Ramsey]

I was starting my YS140L yesterday and heard a clunk.  When I opened the
back plate there as a brass fitting loose in the rear chamber under the
piston.  It's about 3/8 in long by 3/16 diameter.  It appeared to be a press
fit into something.  It does fit in the center hole in the crankshaft.  This
is a large piece and couldn't have come from many places.  I reassembled the
engine and it ran about 400 RPM more than before but leaked fuel through the
carb on shutdown.  Anyone know what or where this piece was and what it
does?  I don't even know what part to replace.

Don

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