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Old 07-15-2015, 07:20 PM
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qazimoto
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Originally Posted by nesan
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the Propeller I have tried APS 13x6 and Master air screw 11X8. the 11x8 is little better.

I have other P.A.W engines like PAW09 TBR, PAW100TBR, PAW249. all running well without a hitch.

If that fuel works ok in your other PAWS then it's fine in this engine.

Those props are quite a way towards being an excessive load for my tastes. I use a Master 11" x 5" on my similar PAW 35 in a Ringmaster.

Can you trim your APS 13x6 down to say a 10.75" diameter?

Other than that I can't see too much wrong. Carbon on the piston might take a few 100's RPM off the top end of the range, but I don't think that it's your problem.
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