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Old 04-27-2008, 08:32 AM
Skyliner70cc Skyliner70cc is offline
Join Date: Mar 2008
Posts: 138
Default Re: Life expectancy of Chinese Bicycle Engines

These things should last almost forever as long as you keep an eye on the wrist pin bushing or don't over rev a roller bearing engine. New rings every couple thousand miles wouldn't hurt either and takes about 20 minutes to replace.

BTW, zero noticeable bushing wear on one of my engines using a castor blended 2 stroke oil at 32:1 ratio.
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