[Dan/Kzo]

Thanks for the responses and here are answers to posted questions. post #3) vibration appears instantly when I let off, and it does not appear to change whether I brake hard or soft. #4) original engine pans that have had new ears welded on and are securely anchored to engine and frame. #5) occurs only when in motion going down road. no vibration when A is stationary reving engine. #6) no vibration when depressing the clutch to disengage engine when going down road. (this is what I do going down long steep hills to quiet things down for a minute). #8)standard head currently using Zenith, but have also had Marvel. have not really changed throttle or gav.