Definatly too much starting gas! I started mine a FIJR on propane with no problem, all you need to make sure is that there is not too much gas going in it. It needs 100 deg to start the ramp but is is easy to get it to 300 deg with too much gas. The problem is that when it is running at idle with that amount of gas and you turn the gas off quickly it will shut down because you have just taken away a large amount of the fuel it is using to run ay 60k rpm and the ecu will not react quick enough because it is regulated by the acc delay when in running mode. I start reduceing the gas slowly from just after the start of the ramp and it is completly off by the time it comes to 60k.

Brilliant little engine!

jason