RE: OS 33GT Gasoline Engine for Pattern
Copied from FG "After you choke it and it pops, un choke, open the throttle up a bit more and it will stop trying to run backwards. Just give it a little bit more throttle. "
A video from the same guy. Seems he knows how to get it to run and he is a GREAT flyer!
http://www.youtube.com/watch?v=R8YA0bwLaBw&feature=player_embedded#!