I recently bought a 1986 VT500C. It is an awesome bike IMO, but it has one issue. I will describe the symptoms below:

1) It seems throttle response isn't as precise as it should be from idle to 4k or so
2) At 4.5k to 5.5k the engines surges lightly. I can hold the throttle in place and it won't lose speed or bog down or anything, just surge back and forth.
3)At 6k+, it runs smooth as glass up to the 9.5k redline.

Feel free to ask about anything I left out. Thanks for the help.

5/25/2009 6:29:26 PM

not to be a prick or anything, but couldn't this have gone in the thread about the same bike 6 posts down?

5/25/2009 6:36:18 PM

I didn't realize someone posted in it recently. Since this is a different issue, I started a new thread. My b.

5/25/2009 6:38:55 PM

sounds like you need to do some tuning, remember you can adjust idle and mid range, and main jet has to be swapped, but they all affect each other

6/13/2009 7:45:07 PM