I inadvertently dropped a small brass nipple down the intake tract of
my motorcycle while doing a carb re-jet. Upon cranking the engine there
was a loud bang as the piston tried to send the nipple into the head.
The damage is apparently mostly superficial, with the exception of a
compressed ring groove at the point of impact. A few folks have said I
can file the top half of the ring groove to open it up to the proper
clearance. There doesn't appear to be any cracking or other signs of
fatigue. Can I go ahead and file it? It's an old-tech air cooled motor.
Money is tight so I'm not worried about whatever performance I may lose
to a less than optimal squish band, etc. I just need to get the 50 mpg
machine back on the road and stop using the 26 mpg one :-)
thanks,
jim
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