Hello kxriders, i just rebuilt my 99 kx500 with new replated cylinder wiseco piston kit and bearing, and a thicker head gasket from bikebandit.com, it is oem just thicker. The bike was only apart for 7 days, i broke it in usin the run 10 mins at quarter throtlle fully cooldown, repeat at half throttle for 10 mins..etc etc... Before the bike would idle but now it does not. Carb idle screw was at 3 quarter turns out so i put it at 1 and a half out as stated in the manual, bit still it does not idle. Runs great though other than that. Any suggestions??? Thanks alot and any input would be greatly appreciated.