no spark plug in the head, on center stand, turn rear wheel (which drives the chain), I hear the piston going out and in. Loosened the clutch cable completely, still hear the piston going in and out.
What have been the symptoms of this for those of you who had this issue?
I'm guessing something with the starter plate and / or clutch sticking / or broken.
Just wondering what others have seen before I open the bottom end so I might know what to look for.