Holy fork twist while braking!! - 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 11 Old 01-18-2016, 02:18 PM Thread Starter
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Holy fork twist while braking!!

Just picked up a 2007 with 8k miles, has a few upgrades like pegs, air filter and rear brake resivior cover. Took it out on the road in the neighborhood just getting familiar with it and did a couple panic stops with the front brake and it felt like the tire was flat. The front end felt like if you got on the brake hard enough it would wash out from underneath the bike. Is this normal without a fork brace?
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post #2 of 11 Old 01-18-2016, 05:10 PM
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Mine (with no brace) certainly dives but no hint of sideways twist.

Have you checked the head bearings and checked frame alignment?
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post #3 of 11 Old 01-18-2016, 07:28 PM
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I'll ask if the front axle is actually loose?

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post #4 of 11 Old 01-19-2016, 07:20 AM Thread Starter
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When I apply the brake it makes the handle bars pull left. I brought it to work today, I'm going to torque all the front end bolt ECT make sure it all tight.
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post #5 of 11 Old 01-19-2016, 10:22 AM
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Gen1 forks seem to deflect more on hard braking than Gen2 but they seem to track straight.

Want to see some significant deformation on a KLR? Try my Gen1 during a stoppie (rear wheel off the ground during hard braking). I'll admit that the thought of a fork failure has occurred but given the number of other brake upgrades out there with zero reports, it's an academic question, IMO.



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Originally Posted by Felt918 View Post
Just picked up a 2007 with 8k miles, has a few upgrades like pegs, air filter and rear brake resivior cover. Took it out on the road in the neighborhood just getting familiar with it and did a couple panic stops with the front brake and it felt like the tire was flat. The front end felt like if you got on the brake hard enough it would wash out from underneath the bike. Is this normal without a fork brace?
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post #6 of 11 Old 01-19-2016, 01:34 PM
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abnormal. my gen 1's experience no undue amount of fork flex with real brakes and no braces (sv calipers, 320mm rotors and ss lines)

Dave
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post #7 of 11 Old 01-19-2016, 02:34 PM Thread Starter
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Brought the bike in the shop during lunch and found the the front wheel axle was loose, the cotter pin was installed but after removing it the nut was only finger tight. I torqued to 50ft lbs and all is good now. Need to find correct torque spec but figured 50 would be ok to get me home.
Did a few more hard stops after torquing the wheel and no twist.
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post #8 of 11 Old 01-19-2016, 04:58 PM
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Felt918,
That's close enough to the spec of 58 ft lb for stock tool kit/trail tools, for me.
Glad it was a simple fix. But maybe the PO left it loose because of an error of indexing the speedometer drive. You might check that.

pdwestman
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post #9 of 11 Old 01-19-2016, 07:34 PM Thread Starter
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Thanks for the help guys! I hit a few trails after work today and a fork brace is definitely in order as well as some stiffer springs.

Last edited by Felt918; 01-19-2016 at 08:51 PM.
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post #10 of 11 Old 01-20-2016, 12:26 PM
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...I'd do the springs first and see how that goes before popping for the brace; many of us that ride mostly offroad prefer not to run with the brace

2 cents,
Dave
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