Scott14 you definitely need to choke your carb with your finger or choke lever if possible in order to get priming fuel into the engine, when I did my first conversion it happened to me until I got to think that when you have the engine in your garden equipment you need to prime the engine with a priming bulb or by choking the engine before you start it. Another thing AV8TOR and I are using R/C CAR glow fuel that contains 10% oil in order to get the 3% and the end of the mix, but like AV8TOR mentioned excess oil wouldn't prevent it from firing up, it might drop the RPM'S but it will still FIRE UP.