HEADS UP!!!

Site upgrade in progress... Core site functions are working, but some non-critical features/functions will be temporarily unavailable while we work to restore them over the next couple of weeks.

Please post any bugs you encounter, but before you do, check to see if it's already listed.

Thanks for your patience while we work to improve the community.

Sign in to follow this  
Followers 0
spomey

help first ride on my new WR450 high pitched whistling

16 posts in this topic

about 1/2 way through the ride my bike all of the sudden started a high pitch wistling at about 5 mph, not at idle and didnt seem to be related to engine RPM. Not brakes the noise would continue with them on or off. any ideas out there? is it harmful?

Share this post


Link to post
Share on other sites

i kind of noticed a whistling noise the first time i rode mine.....

I think it came from the exhaust. .. pull the little tiny peashooter out of your exhaust and see if it goes away

Share this post


Link to post
Share on other sites

Also, if your running a full metal bash plate, it can reflect sounds, and set up some really funky "harmonics"..

My top front, and very back bolts on my bash plate were beginning to strip out, so I drilled all the mounting points out, tapped them, and went to bigger hardware, and now it fits very tight and snug. My first drive out, I kept hearing this "whirring" sound on and off...stop...get off bike...listen...nothing...get on bike...it's back...get off bike...go to other side...listen...nothing...back on bike...it's back....lol...

It onlt started since I fixed up the bash plate, so I can only figure it's something to do with that (Sound reflection/harmonics...)

X2 on the exhust as a possibility as well though. Mine with a megabomb/Ti PowerCore combo without the spark arrestor makes a crazy "klacking" sound at low RPM...sounds like a license plate slapping in it's mount with vibration....put in spark arrester, and it's gone....

These engines seem to make some pretty funky noises as a rule of thumb compared to other engines.

Share this post


Link to post
Share on other sites

If it sounds a little like a 'bird chirpping' it is the carb, the FCR's are famous for it. Perfectly normal.

Share this post


Link to post
Share on other sites

thanks for the inputs! the sound I am trying to describe is a high pitched whistle very continuous starting at 3-5 mph. and going away around 20 mph. I was riding about 9500 feet in elevation. on the way down my son was riding it and it seemed to go away, riding it around the house last night I couldnt get it to happen again. Just trying to figure it out, so it doesnt cause problems on the trail in the future.

thanks

Spomey

Share this post


Link to post
Share on other sites

Mine has been doing this 06WR450 far from new but I think my front brake is slightly hanging up or something.

Share this post


Link to post
Share on other sites

I hear the same thing when i'm rolling slowly. I've come to believe its the mechanical speedo making noise that you'd never hear if you were on the motor.

Share this post


Link to post
Share on other sites

Mine does it too at slow speeds. I chalked it up to still having the AIS on my bike or the FCR. When I twist the throttle it goes away, so I'm not concerned.

Share this post


Link to post
Share on other sites

I finally found it. It is the rubber seal for the speedo!cleaned an lubed squeek is now gone.

Share this post


Link to post
Share on other sites
I finally found it. It is the rubber seal for the speedo!cleaned an lubed squeek is now gone.

We have a winner.

Mine did the same thing, little grease under the rubber cap where it rotates on the hub and no more whine.

Share this post


Link to post
Share on other sites

Hey I've had my 2012 wr 450 for abit now and one day in the bush this whistle started just like you described it so I greased the speedo up rode it and it went away for a little bit but now is back help please ???

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now
Sign in to follow this  
Followers 0