I bought a 2004 Bourget bike with 7,700 miles on it from eBay it has an S&S 113 ci. It was from Texas I’m from Ohio . So to far away too look at it , bought sight unseen . It stats good but the vibration is severe . I rode it 30 miles at 45 to 50 mph it vibrates so bad that it broke a mirror stem off. No odd noises from engine no smoking , at an idle with kickstand down sitting on concrete driveway it will move a foot within a couple of minutes just Idlleing . This bike can’t be ridden in this condition . I took it to Harley shop they checked motor mount bolts & tranny bolts all were tight . Does anyone know what this vibration could possibly be from .