I have tried everything on this 99 KTM 250exc. From changing jets to
(MJ 178*IJ 48* Needle is n85c), cleaning the build-up on the piston, adjusting the stator, premium gas with racing fuel w/40:1 mix, using ice anti freeze and Ngk br8ecm spark plug. I am stumped. Is there anything else that I can check? Thanks for any help, Tom
(MJ 178*IJ 48* Needle is n85c), cleaning the build-up on the piston, adjusting the stator, premium gas with racing fuel w/40:1 mix, using ice anti freeze and Ngk br8ecm spark plug. I am stumped. Is there anything else that I can check? Thanks for any help, Tom