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Old 08-11-2003 | 10:05 PM
  #10  
sport10
 
Joined: Dec 2001
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From: Pensacola, FL
Default YS63 Top End Problems
Dave,

I just received my YS 63 back from the service department today. It seems they replaced the plunger and the piston ring. Since the piston ring was replaced I am thinking I need to run the engine back through the breakin process in the manual. Is this correct? The only fuel I have to break the engine in on is Coolpower 30% heli. Would this be ok or do I need to pick up some YS 20/20?
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