I felt the 40-1 oilo mixture for beakin was fouling plug on mine. Seemed to run better when I went to Honda Synthetic. Also, the low speed mixture setting is critcal and had to be readjusted a couple times on mine... Also seems to run better on 6 volts on the ignition.

I put a 2200 mah li ion battery on both ignition and radio/servos. This is taboo but works fine for me. I use a 6 v regulator.

There were times when the motor wouldn't even fire for me at about 5.3 v or less on the ignition.\\

Just some of my experiences, for what it's worth.

Fox35