i recently bought a ktm 250sxf. 3000 dollars. nice, but i got some adjusting to do... this bike wont start for shnit. 60 some kicks and if im lucky it will start. CANT USE THE CHOKE...dont work, need to figure that out. bike farts and backfires like crazy. i need to know how to tune my carb good and im sure TT peeps will help me out. some info about my carb. there is a boysen jet kit, but i doubt its right. it feels like the bike runs rich as well. heres the problem im goin on with cant use choke until it starts to idle...which thats FORVER AND SOMETIMES IT DONT and after all of that, i lost a good chunk out of my leg...not even kidding, IT HURTS . Too make things short i need someone to help me adjust my carb. and tell me what the hell is a 50 pilot so i can set it to that, i saw in the book the previous owner had it sharpied in. thank you everone i need the most help i can get. its stuck at a friends and i want it home. I GOT IT RUNNING BUT THE DUMBASS I WAS I WALKED AWAY FROM IT THINKING IT WAS OK. came back started idled for 10 seconds and died and i gave up.