My 99 KX125 fouls plugs in under 5 minutes anytime I ride it at less than full throttle. The motor has 185psi compression,,,FMF SST pipe and silencer, and a Delta V-Force reed cage. Can someone suggest a basis for jetting? I live in VA. I think the problem has something to do with the needle clip position,,,but I don't know whether to raise or lower the clip position. Thanks, Dave.