Compression lost

Gerhard Petrolwize

New Member
May 6, 2019
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Hi guys. I have 80cc Chinagirl. Compression test show 130psi after i turn motor for few times with open throttle. Then compression starts dropping steadely. How do i know if it is the rings or something else. Help please.
 

Greg58

Well-Known Member
May 1, 2011
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Newnan,Georgia U.S.A.
Welcome to the forum, it depends on how many miles are on the engine. If its new the rings haven't seated yet. If you haven't noticed a power loss its probably OK.