i have a engine vibration which was not thier before,,,brake peddel vibrtaes badly..you hit the throttle & let off...almost feels like it is hitting the frame...checked the front motor mount no cracks...but the bottom washer is not snug against the mount ..is that normall on a bike ..

 

ttt

 

cant tell you about the washer, but check your belt. mine was a little loose and i tightened it this weekend and went for a small ride and the bike was smooth as ever

 

What year bike? Pre '07 there should be a gap ( about 1/8") between the bracket and the motor mount, if not its collapsed, you wont see a crack! The bottom washer wont sit tight to the mount there is a tube through the middle that the mount and the washer tighten against.