Whirling and Rattling Noise - Kawasaki KLR 650 Forum
1987 to 2007 Wrenching & Mods For maintaining, repair or modifications of Generation 1 KLR's. 2007 and earlier.

Reply
 
LinkBack Thread Tools Display Modes
post #1 of 11 Old 03-30-2015, 11:04 PM Thread Starter
Neutral
 
Join Date: Mar 2015
Posts: 1
Whirling and Rattling Noise

Hey everyone,

I've been lurking on the forum for a few years now. I have a 2005 KLR that sounds great when is cold, but makes rattling and whirling noises when it's warmed up. At first I wrote these off as typical KLR noises, but I rode a friends KLR for a few 100km and it seemed much quieter.

Could you guys have a listen and let me know what you think? Here's a video link: http://tinypic.com/r/6pnq6f/8

Thanks

P.S. The sound does not change when I tighten the balance chain tensioner. Also the whining noise increases pitch as I accelerate.
Klr6501987 is offline  
Sponsored Links
Advertisement
 
post #2 of 11 Old 04-01-2015, 10:18 AM
4th Gear
 
Join Date: Oct 2013
Location: Chilliwack, BC, Canada
Posts: 1,481
Can't hear anything from the video, I've not had luck with sound files in diagnosis but likely because my hearing is not very good. One thought is that it may be that your balancer shaft tensioner spring is broken or lever stuck. Any sign of aluminum in the oil? Filter?

The tensioner (doohickey) can be adjusted by tensioning with a long screwdriver until parts arrive.

Another possible is the rear balancer shaft bearing may be failing. Is the sound in the area of the drive sprocket? If that's failing you need to leave off running the engine as Tom Schmitz's thread illustrated. I recently caught one (left rear) which had failed but before it destroyed the engine case. It may be worth searching for that thread of Tom's because he shows the failure and (if memory serves) the area inside the cases which may help you in your deliberations. I can't see Tom's thread so may be mis-remembering but am almost positive that he was very involved in one which failed.

I have a bunch of photos of the "innards" of the 2012 if needed.

Here is a shot of the rear balancer shaft bearing which had started to fail. The symptoms were crunching sounds: http://www.klrforum.com/showthread.p...light=Balancer

This series, also by Tom, gives brilliant insight of the cases: http://www.klrforum.com/showthread.p...light=Balancer
Normk is offline  
post #3 of 11 Old 05-05-2015, 01:43 PM
1st Gear
 
Join Date: Apr 2015
Location: Tucson,AZ. USA
Posts: 17
Thats the same noise my 2007 makes, but only after it's hot.
AZJEFFRO is offline  
 
post #4 of 11 Old 05-06-2015, 10:57 AM
4th Gear
 
Join Date: Oct 2013
Location: Chilliwack, BC, Canada
Posts: 1,481
Have you inspected the doohickey & spring? If the spring is broken, attempting to adjust will cause the chain to loosen.
Normk is offline  
post #5 of 11 Old 05-06-2015, 03:46 PM
1st Gear
 
Join Date: Mar 2015
Posts: 96
If you pull the outer cover off you can see the doohickey and the spring, gen ones break allot of them. If either is broken or missing FIX it now!
Drifter. is offline  
post #6 of 11 Old 05-06-2015, 04:47 PM
1st Gear
 
Join Date: Apr 2015
Location: Tucson,AZ. USA
Posts: 17
Quote:
Originally Posted by Drifter. View Post
If you pull the outer cover off you can see the doohickey and the spring, gen ones break allot of them. If either is broken or missing FIX it now!
Mine have been replaced and it makes that noise but only when hot.
AZJEFFRO is offline  
post #7 of 11 Old 05-07-2015, 09:08 AM
2nd Gear
 
Join Date: Sep 2013
Posts: 387
Half of my KLR's noise goes away when I remove it's skid plate.
twinjet is offline  
post #8 of 11 Old 05-07-2015, 05:51 PM
OverDrive
 
Join Date: Jan 2011
Location: NW MO
Posts: 5,451
Quote:
Originally Posted by twinjet View Post
Half of my KLR's noise goes away when I remove it's skid plate.
Good point.



planalp is offline  
post #9 of 11 Old 05-07-2015, 07:31 PM
OverDrive
 
Join Date: Nov 2009
Location: Lander, Wyoming
Posts: 6,471
Klr6501987,
My 1987 -A1 with 75,000+ miles has got to be one of the most mechanically noisy KLR's I'm aware of (Tom Schmitz might agree or not). My 2 riding buddy's, 1987 and 1990 with half of my mileage are noticeably quieter. 1996 and up, quieter yet. 2008 and up, quieter yet.
I do not know where all the noise is coming from. Unless we were side-by-side, I'd say mine is noisier. But it is 'quicker' than most.
On the klr650.net site ChuckB. insists that I/we should replace the "spring dampened" balancer sprockets with 1996 and newer parts (solid, no dampers).

I had thought about having another look (19,000 miles since EM doo-hickey), this winter. Sorry I didn't get 'a-round-to-it'.

pdwestman
Modify at "YOUR OWN RISK"!

Still riding my 1987 KL650-A1. 85,000+ miles & counting
pdwestman is offline  
post #10 of 11 Old 05-07-2015, 07:32 PM
4th Gear
 
Join Date: Oct 2013
Location: Chilliwack, BC, Canada
Posts: 1,481
Aluminum housings can drive one to drooling over their ability to transmit/transfer noise. Add to that the problem of combining sounds and I may have to start training my rabbit to do diagnostics. ;-)

Anyone work in heavy industry where they capture and store wave forms from the vibration of various machines? I see some of the vibration analysis equipment being promoted by tool companies but wonder about the back up of data comparison and analysis. The scope of the automotive industry with the numbers of identical vehicles should make an empirical approach very practical.

Our dog could tell my wife's Honda Civic from the neighbor ladies, from 4 or 5 blocks despite that they were the same year and model. The one time I saw him really perplexed was when the neighbor borrowed my wife's car to run home. The dog was standing in the yard twisting, his head in a quite comical manner trying to work out what was going on. Presume it was because it was DW's car being driven with the neighbor's pattern.

It's possible but apparently not economic yet....


Quote:
Originally Posted by twinjet View Post
Half of my KLR's noise goes away when I remove it's skid plate.
Normk is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Kawasaki KLR 650 Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
Noise.... Parcus 2008+ KLR650 Wrenching & Mod Questions 6 08-13-2013 10:30 PM
Noise Observations flash The Off Topic Lounge 6 08-10-2013 10:15 PM
Will Doo change get rid of rattling...? Hellbilly 2008+ KLR650 Wrenching & Mod Questions 16 06-23-2011 06:15 PM
Rattling Chain in My KLR 650. Patrick 1987 to 2007 Wrenching & Mods 2 10-09-2010 10:49 AM
New noise? excavator nut 2008+ KLR650 Wrenching & Mod Questions 3 05-17-2009 08:37 PM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome