I dont think I have any issues with the counterbalance. The buzziness I am experiencing seems very normal. I removed a bolt that went through the engine while installing the factory airbox( thanks to GlenK). Its metal on metal. No rubber mounts, etc. The engine doesn't appear to move or torque the frame under load. I just think its a buzzy little engine.
The previous owner went through the engine. It's hard to explain why I have so much faith in his abilities or thoroughness. I think he would have noticed any issues and repaired or told me about it. I dont think he would have put the engine back together unless it was %100. Time will tell though....
My friend has a saying "When it blows up, I'll know what to fix"
Me thinks I would like to drop a Kx65/85 or keep it real with a cr85 (liquid cooled HP!!) if the engine goes. A kx 65 produces 14hp! the 85's are 19-21 stock...very tempting. KX has a unique reed valve system that makes more low end torque than a traditional reed...
Anywho...
Rejetting tomorrow. Hitting the pool before work....
Glen...I think we should compare bikes before you rip it open again!!
Just in case.