Help! i have a 2006 yzf250 and i was doing about 65, when the thing locked up, i get off it and descover the oil cooler drain bolt fell out! so i brought it home, and put oil in it, and i was able to get the piston moving again, but it wouldn't start! i tore it down, and checked the valve clearences, timing, fuel/air mixture, all gears work, clutch engages and disengages fine, its got 65psi compession, spark plug fine, spark voltage within allowable range, turns over the same as before the seizure, but still won't start! i even tried pop starting it sevral times on a hill with and without choke, but still nothing! please help! any idears?