Nervous Handling - Kawasaki KLR 650 Forum
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post #1 of 11 Old 04-16-2008, 08:22 AM Thread Starter
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Nervous Handling

My 04 Klrs handling is a little nervous at any speed above 60kmh, thinking it could be the 4 year old tyres i replaced them with a set of Sirac's which has made a tiny improvement but not much. Any clues as to what may be the cause of this ? Is this a KLr trait ? the bike has only 3000kms on the clock.
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post #2 of 11 Old 04-16-2008, 08:24 AM
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Your head bearing may need to be tightened up some. If loose the front end becomes somewhat unstable.
Here is a good outline of how to check and adjust:
http://klrworld.com/forums/index.php...t=head+bearing

2008 DL650 VStrom Yellow and Black
Previous ride was a 2007 KLR Black/Silver, I miss it..
Looking to get back into KLR's sometime soon.

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Last edited by DXKLR; 04-16-2008 at 08:32 AM.
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post #3 of 11 Old 04-17-2008, 04:11 PM
 
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Also: 1. Bump your rear suspension preload up all the way. If the back end sags, it takes too much weight off the front wheel and the front wheel "hunts". 2. Bump up your rear tire pressure. Same deal. 3. Bump *down* your front tire pressure to see if that helps (but not below the minimum in the KLR manual). If it actually hurts, or makes the steering "squishy", try to bump *up* the tire pressure to the pressure listed on the sidewall, and see if that helps. 4. Pump a little air (10psi or so) into your front forks, see if that makes it more stable. If so, then your front springs have sagged and you need to put in new front springs. (Kawasaki builds their front springs out of compressed oatmeal, they only last a couple years before sagging). Note that riding offroad with air in the forks will likely blow the fork seals out, so this is a diagnostic, not something you want to leave in the forks.

If you had knobby tires I would suggest switching to a street-oriented tire like the Sirac, but I see you already did that :-). But I'm pretty confident that by making sure your head bearing is tight (should have just a little drag in it when you move the bars) and getting your springing set up right, you can get your KLR working quite well. I ride my KLR at 70mph (115 km/h) every day to commute to work with absolutely no problem at all. However, to do that I had to significantly change my suspension setup -- I now have a heavier spring in the back, heavier fork springs in the front, and this got my KLR absolutely stable all the way to its top speed where before, the front end tried to "hunt" or wobble at 70mph or above.
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post #4 of 11 Old 04-18-2008, 05:57 AM Thread Starter
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Thanks for your advice egreen, will try out your suggestions this weekend and let you know how i get on
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post #5 of 11 Old 04-18-2008, 12:34 PM
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If you have enough front end travel for your type of riding, you could raise the forks a bit in the triple clamps.
This is a typical mod that V Strom riders do to make the front end more planted, as it changes your rake dimensions a bit.

I'd start with 3/8" and go from there.. The first adjustment might do what you need.

Remember, you're going to lose a touch of clearance by doing this, so if you're climbing over logs or rocks, you might not want to adjust very mucy.
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post #6 of 11 Old 04-19-2008, 08:27 AM Thread Starter
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Thanks all for your suggestions, will muck around with a few things and let you know how i get on
cheers
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post #7 of 11 Old 04-20-2008, 07:25 AM Thread Starter
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Today i set my shocks damping on position 2 and found the nervous feeling was almost cured, thanks again for your help guy's
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post #8 of 11 Old 06-22-2008, 01:35 PM
 
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How do you like the Sirac's?
I see them on Ebay and am thinking of getting a set for highway commute.
please let me know if they have been working out and what kinda riding you are using them for.

thanks A.C.
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post #9 of 11 Old 06-22-2008, 07:51 PM Thread Starter
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Over the weekend i covered 430km's on them with a good mix of tight fast road work, loose gravel roads, hard packed tight dirt tracks, and slightly damp loose and sandy 4wd tracks and the siracs handled it all very well, the only surface they don't do so well on is mud, but everything else they do well and on the road you can easily keep the sport bike boyz honest on a tight winding road, can highly recommend them, only thing i might try next time is a 120 rear instead of the 130........
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post #10 of 11 Old 06-23-2008, 03:32 AM
 
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120 instead of 130, why is that does it rub?

thanks
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