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Old 11-11-2002 | 04:29 PM
  #21  
RCRobb
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Joined: May 2002
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From: Gold River, CA,
Default YS .63 problems
I had the same problem as you with (2) new YS 63 engines. The cause was a small speck of something in the check valve.

Clean your check valve as can773 suggested - then go fly.
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