I dont remember which forum I read in last night or would have contributed to that one. The forum was about putting heat resistant rubber between the fins of the motor. I cut up an old car tire today and inserted peices between the fins. The shaking when fast cruising is maybe a quarter of what it had been and the bike seemed a tiny bit quieter from not shaking from the revs. Who ever thought of this way to go! It was cheap easy and extremley afective.