Vacuum leak of some sort?

[ssg_petty_210]

When my bike is running, I hear what seems to be a high pitched whistle. I think it is a vacuum leak of some sort, but I cant seem to find where it is coming from. I hear it more towards the front of the bike and gas tank area. Has anyone else had this problem? If so, what was the solution?

 

[twotonevert]

Could be the balancer/timing. Read this whole thread, solution on page 3. Does your sound like this? https://www.hayabusa.org/forum/gene...y-does-my-bike-whistle-video-inside-help.html

 

[isiahstites]

When my bike is running, I hear what seems to be a high pitched whistle. I think it is a vacuum leak of some sort, but I cant seem to find where it is coming from. I hear it more towards the front of the bike and gas tank area. Has anyone else had this problem? If so, what was the solution?

Does it make it all the time?

I have a high pitch noise on my bike and couldn't figure it out until one day I heard it while the bike wasn't running. Popped the gas cap open and it stopped, it does it when the tank is low on fuel and espically on hot days.

Check that before you move forward......

Good luck,
Scott

 

[ssg_petty_210]

It still does it. I just filled the tank. It does it all the time if the bike is turned on. No performance is effected, no over heating no nothing. I just cant figure it out.

 

[delbert]

im with twotone on this one . check & adjust balancer shaft

 

[ssg_petty_210]

thanks

 

[twotonevert]

Was that it?

 

[ssg_petty_210]

I have to check it today. I have been out of town. I will post up if that is the problem.

 

[twotonevert]

Ok, found it, its most likely the balancer gear adjuster. Refer to this thread, https://www.hayabusa.org/forum/gene...does-my-bike-whistle-video-inside-help-3.html Page 3, post #47.

 

[ssg_petty_210]

Ah okay. Cool, cause I still havent found it lol. Thanks for the info.