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Old 01-08-2011, 07:31 PM
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anothen anothen is offline
Motorized Bicycle Member
Join Date: Dec 2010
Location: Austin Texas
Posts: 31
Default Re: break-in period on 48cc , not sure if my engine is running correctly.....

If it was head gasket there would
be noticeable leaks.

It's sounding more like a carb
Inspect the carb for trash.
If the float is too tight, it
would cause this symptom.

Also check the muffler make
sure it's not blocked.
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