Wobble problem - Kawasaki KLR 650 Forum
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post #1 of 13 Old 04-09-2016, 09:37 AM Thread Starter
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Wobble problem

Hi all, my name is Gordon, New to KLR'S, not bikes or wrenching on them...
Took off a set of the Dunlap OEM tires on my 2011, put on new Kenda K761 and now I have a wobble that seems to start about 75-80mph, feels like it could turn violent. Not a problem with old tires.
Rims are true, bead seated, looks great spinning by hand with nothing wobbling oddly, rear wheel straight, spacers all in right place, tighten front axle before leg clamps, bearings good. not jumping around like a balance problem.
I always fill and release the air a few times to make sure the tube isn't folded over. (needed or not I do it)
25psi front and rear, haven't played with different pressures yet.
Any Ideas?

Will be slow to respond today, looking forward to your advice.
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post #2 of 13 Old 04-09-2016, 10:00 AM
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I also have the Kenda 761's and 25psi seems awfully low to me, especially at 75-80mph. I run mine in the upper 30's almost all the time.



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post #3 of 13 Old 04-09-2016, 10:16 AM Thread Starter
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That was my next move, go about 36-38psi

Thank you!
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post #4 of 13 Old 04-09-2016, 12:25 PM
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Depends on the tire of course, but after trying many pressures over the years, I've settled on 37 F 35 R for general everyday street riding. FWIW



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post #5 of 13 Old 04-09-2016, 12:30 PM
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I also use 761's nd run mine at 32 front and a bit lower in the rear....but they like to be hard!.....
I would ask about your steering head bearings also...? Lift bike foo ground, well the front anyway, see if the handle bars move on their own from side to side with any pressure...if they do your steering head bearings need to be tightened! The rule of thumb is you should have to push the end of the handle bars from side to side using just the maximum pressure from just using the back of your pinky finger nail. IF it takes more the bearings are too tight, if the bars move on their own way too loose! Just something else to concider.
Also, if you changed from knobies to a semi street tire the riding characteristics are different but still you shouldn't be getting any sort of wobble at those speeds! Sounds like a tank slapper in the making!
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post #6 of 13 Old 04-09-2016, 07:06 PM Thread Starter
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Lockjaw, Willys, Thank you..
I will check the steer-head bearings, think they are loose.
Air pressure I will jack up.
I do off road but our dirt here is so hard you can get more grip with a street tire then a knobby
I will check this all out tomorrow, thanks for the advice!!
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post #7 of 13 Old 04-10-2016, 11:46 AM Thread Starter
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Thanks all....
Steer head bearings were good, pump tires to 36R 38F, I got my bike back!!!!!
I got a lot to learn about these KLR'S, my Harley's were a much different animal.

LET THE GOOD TIMES ROLL!!!!
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post #8 of 13 Old 04-10-2016, 12:13 PM
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So should I air up my stock tires on my new KLR? Still do not have enough miles on it to notice anything weird, but the stock PSI in the 20 pound range seems pretty low.
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post #9 of 13 Old 04-10-2016, 12:16 PM
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Street use yes, gravel and dirt no.....32 ish street 20ish gravel and dirt.

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post #10 of 13 Old 04-10-2016, 12:32 PM Thread Starter
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My OEM tires felt fine in the mid 20's on the street, the Kenda 761's not so much.
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