Changed out the exhaust to the FMF Powercore 4 S/A Slip-On Muffler. Lots of popping on decel. Still running stock jetting. Anyone know what to change it to or how to adjust the carb?
No jets in stock today ANYWHERE!!!
SOAB
Just stick that spare 08 KTM 450 motor in it and do a KLX mod like CDA did with his TTR