Vstar vibration at high rpm - 1999 Yamaha V Star 1100 Custom

A bit more information please. With the bike in neutral does it vibrate as you rev up and release the throttle? Do you get any vibration when your accelerating as you ride? When you release the throttle but NOT brake does it happen? Do you get the vibration only when you brake?

Hi there! I have the same Issue. Did you find the problem by any chance?

Bad ignition coils will make the truck act like this. Also low fuel pressure.

could be the timing belt tensioner. with the timing casing removed place a socket extension bar on some metal then to your ear as it will help you locate the noise. be careful tho. failing that big end shells i would check. hope this helps

does sound awfully high to me, is this with lights on or off though? most i think ive seen with lights off is about 15.1v at 4500rpm, so 17 is far too high unless the lights are on

I would guess that the tires need balancing. There is a product you can buy that is a bunch of little BB's you put in the tire that will balance it. I have not used it so I would recommend taking your bike to a tire shop and have them balace it for you.

That sounds like it could be a vaccum leak,check the brake powerbooster , there is a vaccum line that goes to that .

idle cable out of adjustment and or throttle cable needs adjusting also and they always need to be lubed at 5000 miles adjust throttle cable with wheel striaght forward idle cable to all the way right lock and 2-3mm free play on throttle grip

Make sure all of the engine mounting bolts are tightened properly. One loose engine mount bolt can cause exactly what you are describing. While you're doing that, perform a visual inspection of the attachment points on the frame, making sure there are no visible cracks.
Aside from that, just stick a wrench on every bolt and nut on the bike that you can see - and make sure everything is tight.
The only other possible thing I can think of would be a loose flywheel on the crankshaft. Unlikely, but check just to be sure.

The vibration at that high rpm is most likely coming from the torque convertor and if a manual transmission , then clutch issues.