general carb ????

[AZKLX]

I have a 99 klx 300 with a 340 conv. and a mik pumper tm 33 my question is at full throttle once the rpms build there is a sudden jerk almost like the rev limiter is kicking in am I on the right path thiinking that the rev limiter is kicking in or a main jet issue I've tried a 142.5,145 and now I'm on a 147.5 everywhere else in the throttle position seems ok. any suggestions

[Bill_P]

I can't speak towards your jetting issues since I have not owned a Mik33, but according to Jerry Leighton (Stroker/Fourstrokeworks) the KLX does not have a rev limiter. What many feel when mistakenly thinking the rev limiter is kicking in is their valves floating. Just FYI. There are lots of guys here with the 33, hopefully some of them will jump in.