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

 
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post #1 of 4 Old 09-02-2018, 07:05 PM Thread Starter
1st Gear
 
Join Date: Apr 2018
Posts: 24
Persistent Valve Noise

Hello All,

My bike has slowly developed what I believe is "valve rattle" since I got it roughly 500 miles ago. I assumed that this rattle was the product of valve clearances being out of spec. I inspected them and found the intake valves to be at the tight end of spec, and the exhaust valves were in fact roughly 0.05mm beyond the tight end of spec. I purchased the appropriate shims and did the valve adjustment. Very straight forward, no problems. However, the "valve rattle" is still there, and may even be worse now. There is now also a noise that sounds like a 'lifter tick' on top of the previous rattle that was there.

In doing some forum searches, I believe that I have addressed the usual suspects. The valves are in spec, the cams are properly timed, all bolts are properly torqued, and the bike has an upgraded Eagle Mike Doo that I recently adjusted (after the rattle started). The bike does need a new drive chain and sprockets (on the way from Rocky Mountain ATV), but that can't be the issue as the bike makes the sound in neutral while parked. I also replaced the air filter at the time of the valve shim adjustment. Not that that would cause a rattle/tick, but I'm just throwing all of the info out there.

Does anyone have any ideas what could be causing this? I will try to get some video/audio of the noise tonight. For what it's worth, the bike rides great. Took her out for a 5 mile spin today and everything felt great.
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post #2 of 4 Old 09-03-2018, 04:01 PM Thread Starter
1st Gear
 
Join Date: Apr 2018
Posts: 24
Here is a link to a video I took. The noise is not as pronounced in the video. See if you can hear anything problematic. I may just be over-paranoid.

https://youtu.be/pDWZ2yTrG-0
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post #3 of 4 Old 09-05-2018, 03:37 PM
2nd Gear
 
Join Date: Jul 2014
Location: Seattle
Posts: 113
What little I could make out from the video sounds similar to what mine was doing.

Sent from my SM-G960U using Tapatalk

Tom
2013 KLR- klx needle, EM doohickey, EM fork brace, EM drill through subframe, UNI air filter, 16 tooth front, thermo-bob, SW-motech crash bars, JNS skidplate, Tusk panniers, Wolfman Explorer tank bag, Acerbis front fender, Russell Seat, Barkbusters, doubletake mirrors, Cogent suspension
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post #4 of 4 Old 09-05-2018, 07:03 PM
OverDrive
 
Join Date: Nov 2009
Location: Lander, Wyoming
Posts: 5,257
Sounds normal to my ears.

pdwestman
Modify at "YOUR OWN RISK"!

Still riding my 1987 KL650-A1. 84,000+ miles & counting
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