My motor vibrates really bad at low rpms. Yesterday while it was idling I was just watching it shake like crazy. When you give it gas it goes away, but as the RPM's come back down, it starts to vibrate really bad again.

 

No...it does'nt sound like normal behavior. I have been on a couple and they make almost no vibration while idling and will vibrate more as the rpm's climbs.

 

Depends on what you mean by "vibrating like crazy" If the motor is shaking more than what you would deem normal check the motor mount bolts and the mounts themselves. Just looked at mine and there is a little play but not much. Mine loosened up on me shortly after purchasing mine. I put a little loctite and tightened them up and have never had a problem since.

 

Mine doesn't shake, and since I have put back stock pipes it doesn't vibrate that much anymore. Maybe your idle is too low, and it resonates (maybe?) otherwise, that's what has just been said, check your bolts and nuts!

 

Twinshot:
from what you describe it almost sounds like the crank bearings may be going bad.... Its a tale tell sign on my banshee when the lower end starts getting weak. I have had my crank let go twice on me and both times I remember the bike vibrating pretty bad. What year is it and how many hours on it? I am not saying that the crank is going to let go on you... but in my case thats what happened.

good luck

walter
88 Banshee 370
95 Dodge Ram 4x4
99 Quadbuddy