Thread: Spark knock
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Old 05-16-2008, 12:41 AM
Skyliner70cc Skyliner70cc is offline
Join Date: Mar 2008
Posts: 138
Default Re: Spark knock

Remove the piston and then stick the wrist pin in directly into the bushing. Clearance should not exceed 1 RCH-rch is a military unit of measure and is a very small amount that is barely visible.
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