No idea what it could be but it sounds like a 2 stroke dirtbike(best way to put it) you can smell alot of unburnt fuel. it randomly does it. I rev'd it up tonight after it was warmed up (avn't done it in a awhile) went back to driving and as soon as I let out on the clutch it started missing real bad and now it won't stop. Could it be plugs,coils,or CAS? I'm going to check compression on the rotors later today to make sure i didn't loose my rear rotor, But it's not smoking or nothing it just has a real bad odor of unburnt fuel(well more than normal). Any Ideas will be appreciated.

 

you can delete thread rear rotor is dead