My husband asked me to post this message: He has a 1991 KLR 650 which has broken down in Caldwell ID. He was on his way to Hailey. The problem is an intermittent intense vibration which results in rough riding at 25-30 MPH. Does anyone have any idea what this might be? He has all the tools he needs to work on his bike but is not sure where to begin. Thanks for your time in responding.