I have an old sportster with a OS FS 40 in it. It gets around ok kinda scale flight you gotta think ahead for power.
Anyway my problem is when taxiing (we have a long taxiway) the plug gets cold and if I make it to the runway it
usually craps out trying to do a run up unless I have a ni-starter on it. I got 2 plugs to try and if I can pick the one that works first I can take the other back for the "good" one. The question is between a Mckoy 4C plug and a OS #6 (its the hotter plug) which one from experience is likely to work best ?? thanks bro's