Thread: Spark knock
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Old 05-15-2008, 05:23 PM
Bikeguy Joe Bikeguy Joe is offline
Godfather of Motorized Bicycles
Join Date: Jan 2008
Location: up north now
Posts: 11,531
Default Re: Spark knock

At least take it apart and check it for play. Pop off the head and jug and check the piston for loseness up and down on the rod....I believe Norman can tell you exactly what it feels like or Ilikeabikea, since they worked on Normans bike awhile back and I remeber reading comments on the loose bushing.
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