Originally Posted by snowman
the muffler has to be hot enough too.......so prewarming the oil before you spray it into the exhaust gas's hottest point (just as it exits the cylinder), becomes essential.
Pre-heat is what everyone says you have to have on glow engines so it must be essential. I guess you should lean the engine as much as safely possible if you don't pre-heat. Leaning it will at least get more heat to the exhaust. It would maybe help if you had an atomizing muffler tap if you could find one.