I choke mine with quarter throttle until it fires, usually 4-6 flips. Then choke off and throttle to idle. Usually starts within 1-2 flips. I had to richen both needles from the factory setting, this got me 3-4 hundred rpm's off the peak for the break-in. Restarts don't require choking; I leave at idle and 1-2 flips has her running. Like others have stated, you have to flip the prop through fast. This is my first gasser too and it runs sweet with gobs of power!