[mxr491]

my crf 250 just recently aquried a new noise about 45 minutes after i installed a new oem clutch with 450 springs. i came back from a practice at an indoor track, bike runs perfect. when its time for me to come back out, i heard somthing that didn't sound too good. i don't know how to really describe it but it was like you could "hear" the stroke of the piston. it was coming from the left side of the engine for sure. i know it wasnt the decompressor or carb for sure. i can't figure this one out and i am really starting to get freaked out.