What kevin said, just want to add everyone freaks out with these new engines and looks at it like its a rocket engine.. there the same old thing with some new crap bolted to it but the same old basics apply . Does it have fuel, does it have spark , is the spark on time, check all BASIC crap you can as you would if it was a 1980 xflow that wouldnt start then go from there.. intermittent issues are worse than your prob and will usually need the lap top to verify history.. Kevin, Gordon and racer know these better than anyone .. Dave