Let me apologize in advance because this topic has probably been done before, but I'm having some nasty vibration at high revs.
Does anyone know what can be causing this other than the normal cause (the crank, drive gear, and counterbalancer punches)? I'm fairly convinced that it's not these things because I've sheared the counterbalancer woodruff keys before and the vibration is very distinctive, more like rumble that makes your teeth chatter. What I noticing on my bike is that at high revs the bike vibrates intensely to the the point where it's hard to hold on. Other than the high rev vibes, I can put around all day on the bike just fine.
Oh, and it's not just normal two stroke vibrations, I jumped on my Banshee and the vibration difference at high revs was very noticeable.
Anyway, just wondering if anyone can point me in the general direction...