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Old 06-08-2002 | 12:01 AM
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RC_MAN
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From: LaSalle, ON, CANADA
Default YS 140L backfire problem
Gentlemen

I have been using the YS 140L for a few flights. In the last couple of flights about 1/3 of the time when I climb straight up the engine backfires, kicks and stops. I'm running the engine rich with a nice smoke trail.
Fuel is Powermaster 20/20
plug is the new YS 4 stroke
props are 15 x 12 and 16 x 10 no difference
There seems to be good pressure left in the tank
Any ideas?


Thanks
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