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Old February 17th, 2008, 18:22   #4
Double Tapper
 
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Join Date: Jul 2006
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Is the gear timing setup correct,is the piston in the groove guides?.
This happened to me a few times.Then found out the hop up was
jaming the BB's and cuasing back presure to cause the piston to
fall off the timing and jam to the rear.
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