COLD wEATHER STARTS??
"Convince" the engine that it is summer! When you arrive at your flying site "stick" the head of the engine into the exhaust of your car/truck for a few minutes - then use your normal starting process.
Tony
ORIGINAL: Dante421
Alright I was hoping for some advice. I am having a very difficult time starting my O.S 91 Four Stroke. I purchased a Great Planes Piper Cub float plane from the classifieds on this site late last fall. When I first got it home I had a very difficult time getting it to start although after some work it always ran. It was even difficult to start after it had warmed up. I went out to the garage today to pull the floats and get it ready for the field and thought I would run it for a few minutes. I started by checking my valve clearences, fueling, checking throttle and linkage along with all control surfaces, primed engine a few turns, then tried to start. No go. Pulled glow plug and it is wet and glows. Re-installed glow plug and attempted it again. No go. I thought because it was cold I should attempt to richen the mixture. I went from two turns out to two and a half turns then to three. Still the engine would not fire. I ran the throttle at every position possible and it would still not run. What am I doing wrong. I have seen these engines just fire right up with no effort. Please help guide me in the right direction.