Dale

I am just getting mine ready to run. I have 6v 1650mah nickel-metal hydride batt for ign, so i don't have to worry about chargeing at the field. One question though. Did your pitts style muffler hit your cooling fins on the cylinder. My muffler does not fit. I am thinking of just grinding the fin down. Also did your muffler have a pressure tap on it?? If so what is this for?? I thought gas engines did not run pressure for thier fuel tanks.
this is my first gas engine so I am very excited to get it running

Thanks for the help
Bill