Vibration is our enemy,more so than we think. We all have old inner tubes that we dont use. Most just chuck them and say the **** with that huge un patchable hole. Which got me thinking. What about cutting them up and placing them in between the mounts and the frame. seems good enough cushion to me. plus the rubber they are made of has some pretty descent grip .Especially the dreaded gas tanks. You could also utilized your old tires you just upgraded from or have laying around. cut them into sqaure inch pieces and stick them in between the fins on the motor. on all four side dead center. I have a few other anti-vibration thought ill post pics when i am finished and show you some other methods to reduce this bolt loosening action our beloved engines cause.