RE: Skybolt hangar and clubhouse
Minnflyer........I had that thought too. But unexplicably the heat from muffler melted it too. This makes no sense because the pressure nipple I installed is in the pretapped hole the non-pumped O.S.120 4-s uses.
I'm still running the engine a bit rich. Run 1 3/4 gallons of 20% through it so far.
Thanks for help...........Murphy........