HI JUST GOT MY SELF A LOVELY 93 TRIDENT 900 AND LOVE IT TO BIT (MORE THAN THE WIFE) HANDELS LIKE A DREAM AND IS COMFY BUT UNDER 3000 RPM IT RUNS LIKE SH1T AND IF YOU OPEN IT UP FULLY UNDER 3000RPM IT VIBRATES VERY VERY BADLY I KONW THAT IT NEEDS A SERVICE BUT WOULD THAT CAUSE IT TO BE THAT WAY CAN SOMEONE PLEASE GIVE ME SOME IDEAS (ITS BOOKED IN FOR SERVICE NEXT WEEK)