Need help just bought a used bike from the dealer on the first of june! 03 sportster 883 anniversery special! 5700 miles on it when i got it! Used to be a really smooth ride, now i have 6700 miles on it and it just vibrates all the way from the foot controls up. Started when i was cruising at 70 mph down the highway scared the heck out of me when it first started, then went away for about 10 more miles, then came back again! Now the bike is stuck in a permanent Vibration mode now! Was having some slight problems with the clutch early on lurching ahead on me when starting, and got stuck at a light and couldn't get it into 1st gear so had to take off in 2nd then it hasn't done that since! It seems to make alot of racket now coming from the front end lower side at time's like big clanks! or at least that's where i feel like i'm hearing it at! I also hear alot of hum coming from the chaincase area, checked the fluid level's and chain tension all seem fine, Burnt my hand on the clutch cover plate! Any ideas? could the clutch all of a sudden cause all that vibration or could it be the motor? I Got a 30 day warranty from the dealer but that has just expired a week ago!