Crash bar vibration - Kawasaki KLR 650 Forum
2008+ KLR650 Wrenching & Mod Questions For repair, maintaining or modifying discussions related to the newly updated 2008 and beyond, Generation 2 KLR650 Motorcycle.

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post #1 of 15 Old 02-08-2015, 08:29 PM Thread Starter
D C
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Join Date: May 2013
Location: Panhandle of Texas
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Crash bar vibration

Put the dirt rack crash bars on the bike, I like them, but at highway speed I'm having vibration in the handle bars and foot pegs. Any ideas to cut it down some? Would neoprene washers help or would they be crushed with the 18 foot pounds of torque?
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post #2 of 15 Old 02-08-2015, 09:47 PM
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Is it all speeds and rims on the highway, or a narrow range. My bars vibrate something fierce in fourth gear, 3000-4000 rpm, but are fine in fifth gear at the same rpm!
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post #3 of 15 Old 02-08-2015, 10:18 PM
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A thin piece of rubber at all contact points should cure all vibration issues. Go to home depot or lowes and go to the flooring section. Or better yet, cut up an old tire innertube.

94 KLR,tank guards,sw motech centerstand,Doo done, african switch,mirror dampners, powerpegz, twisted throttle fuses, aluminum skidplate, Bigcee shark disc and jug holder and subframe upgrade, progrip grips,maier handguards/brushguards, avon distanzias,fmf q4 exhaust, headlight guard, handlebar risers, billet rear brake reservoir bracket and guard, dual star shifter,garmin 2820 gps, tmod,disc cover, pcv mod,corbin flat
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post #4 of 15 Old 02-09-2015, 06:04 PM Thread Starter
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It starts at 3500rpm every gear
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post #5 of 15 Old 02-10-2015, 09:38 PM
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Quote:
Originally Posted by D C View Post
It starts at 3500rpm every gear
then I agree with Paulo!
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post #6 of 15 Old 02-10-2015, 09:45 PM
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D C,
Try anything/try everything.
Some times none of it works. Some times the first thing was the Best thing!

pdwestman
Modify at "YOUR OWN RISK"!

Still riding my 1987 KL650-A1. 84,000+ miles & counting
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post #7 of 15 Old 02-10-2015, 10:17 PM
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Mine too.
It's a home fabbed unit and very basic.
My problem centers on being hard mounted to the frame.
Been wanting to shave off a little to make clearance for
urethane washers. Seeing this thread, having the night off,
and just having some coffee made me decide to fart with it a
bit. If I come up with anything cool the wife can pic n' post
with her camera on here. I never bothered learning. lol
I'd rather spend my time learning how to make a great n'
cheap bike even better! (gigglesnort)

This is my son, with whom I am well pleased." ----God
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post #8 of 15 Old 02-10-2015, 10:22 PM Thread Starter
D C
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Join Date: May 2013
Location: Panhandle of Texas
Posts: 66
I'm considering splitting a short section of radiator hose, drilling some holes through it and placing that around the down tube using it as a rubber isolator. Cheap if you come up with a fix let me know. I'm going to start experimenting!

Last edited by D C; 02-10-2015 at 10:24 PM.
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post #9 of 15 Old 02-10-2015, 10:35 PM
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Same mentality here DC dude.
Thanks for the rad-hose idea. I wasn't thinking of going that
thick but surely can then at the most add a mount bracket or
two if it wiggles too much.

Got the laptop, tunes, and bike in the semi heated garage............
time to bust some knuckles.

This is my son, with whom I am well pleased." ----God

Last edited by CheapBassTurd; 02-11-2015 at 12:10 AM.
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post #10 of 15 Old 02-15-2015, 04:16 PM Thread Starter
D C
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Join Date: May 2013
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Well Cheap, have an update. The split radiator hose idea did not work. I have the stock crash plate on it. So a split hose wouldn't fit. I cut strips off the radiator hose and placed them between the crash bars and then bracket on the down tube. I had to get longer bolts 4-1/" ones for it to work. For the bolts that attach to the subframe I placed a small piece of rubber (spoke protector rubber off wire wheels) and put it between the crash bars and the sub frame. Depending on the weather tomorrow I'll see how the vibrations do.

Have you come up with anything?
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