OK - now I'm just mad and frustrated! I got the right fuel today - and tried and tried to start the damned thing - no go, messed with the needles - set them to factory specs - nothing - over and over again! Changed the plug -= nothing! I got aggervated and ended up putting the TT50Pro on there - it was just barely broken in when I took it off my raptor - the guy at the LHS said the only difference between it and a plane engine is taht5 the head was bigger so that it would cool better - so I put that on instead - Got it running with that no problem - started the second try, plus it had no fuel in it the first - so then I realized that my low end was way rich so I took it down a bit - messed with the mixture till I got good response throughout the whole range - I zipped it up the street - no wings of coarse - and wanted to see it accelerate one time - it choked out! Took it back in and haven't been able to start it since - I pulled the glow plug - turned it over a bunch of times in case it was flooded - nothing! I am just getting aggervated as can be! In the thunder tiger manual it doesn't say what the needles should be at from the factory - I just put my high end at 1 1/2 turn out from closed and similiar with the small needle - I did get some reaction when I opened up the small needle a lot - HELP!!!