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Thread: trx 3.3 or OS .21 tm for revo nitro?
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Old 04-17-2015, 05:10 PM
  #10  
ausprime
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Join Date: May 2014
Posts: 200
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The TRX is hard to tune, because the needle threads are to coarse. So after going through three 3.3 motors, I decided to go with the O.S 21TM and converted it to bump start. I have issues with the OWB in the stater. But now there is no starter. So i don't have OWB trouble anymore.




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