2 stroke backfires?
Hello all,
I've put a 14-6 and a 13-6 on my supertiger 90. I've played
with the low end and high end till my fingers were numb. Why
does it continue to spit and backfire at full throttle? Should i
use a special plug? What fuel is best? I'm using 15 % nitro with
about 18% oil, 4% of that is castor and the rest is klotz. Could
it be backpressure? I fear the pitts muffler i have is too restrictive.
thanks
Craig