Front wiggles from 145kph, is this normal? - Kawasaki Versys Forum
 
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post #1 of 20 (permalink) Old 11-11-2013, 04:42 AM Thread Starter
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Front wiggles from 145kph, is this normal?

just a little over 1000km and ready for free 1k service. i did noticed on the freeway yesterday a slight wiggle over 135kph,-150kph (thats about the max ive tested so far) is this normal on our bike?

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post #2 of 20 (permalink) Old 11-11-2013, 04:51 AM
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post #3 of 20 (permalink) Old 11-11-2013, 06:06 AM
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Have you checked your sag? Increasing the front preload or decreasing the back will tend to make a bike more stable at speed.
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post #4 of 20 (permalink) Old 11-11-2013, 10:46 AM
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Did you (or the road) do something to induce the "wiggle"?

The V is a short wheelbase, nimble bike. I've found that at highway speeds and above, if I need to shift my position on the bike, its best not to use the handlebars to do that. The handlebars are for directing the bike, and not for leveraging yourself around on the bike. That is what your abdominal muscles, hips and footpegs are for. Just sayin'.
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post #5 of 20 (permalink) Old 11-11-2013, 11:39 AM
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Wiggles aren't normal on my '12 V. After I broke it in, but still had like new tires on it, I took it up to 110 mph. ("indicated," I understand I was really going less than 100mph in actuality. Haven't changed the sprockets to correct the error in the stock gearing yet.) Nary a wiggle or anything. Was very stable at higher speeds. Rode to Ft Smith last month and was fully loaded with gear and side cases. I did countless bursts of speed up to 90 MPH, again, no indication of a wiggle at all.
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post #6 of 20 (permalink) Old 11-11-2013, 12:17 PM
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post #7 of 20 (permalink) Old 11-11-2013, 01:01 PM
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Check your wheel alignment. A rear wheel that's skewed to one side can induce a wag at speed.
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post #8 of 20 (permalink) Old 11-11-2013, 03:32 PM
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145kph wiggle---woohoo!

start with the easiest first, then work through from there

how does the tire and tire wear look?
how does the wheel look?

how much pressure is in the tire?

is the tire/wheel balanced?

good luck
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post #9 of 20 (permalink) Old 11-11-2013, 04:31 PM
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check pressure first, I tookapart my steering to look at the bearings once to find my tire was way low...lol

also look and make sure you have wheel weights, they have been known to come off on occasion.

it it's still on warranty, tell a tech to look at it after checking these two non warranty issues first.
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post #10 of 20 (permalink) Old 11-12-2013, 01:58 AM
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Quote:
Originally Posted by DustyOne View Post
start with the easiest first, then work through from there

how does the tire and tire wear look?
how does the wheel look?

how much pressure is in the tire?

is the tire/wheel balanced?

good luck
dusty
+1
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post #11 of 20 (permalink) Old 11-12-2013, 03:39 AM
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got a wiggle today whilst passing a truck at speed . wind induced . strond gusting side winds can also induce these types of ocilations
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post #12 of 20 (permalink) Old 11-12-2013, 12:54 PM
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Lots of guys find the front wheel oscillates as it touches down after a FIFTH gear wheelie....

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post #13 of 20 (permalink) Old 11-12-2013, 01:44 PM
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Up-down vibration is balancing, otherwise check the front by jacking up the bike and trying to move the tire to the sides. If it moves the bearings might need to be serviced.


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post #14 of 20 (permalink) Old 11-12-2013, 06:56 PM
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Loose headset can cause instability as can improperly set sag. The forks stick up above the top tripple clamp about 0.155 inches or so. By reducing this number you will make the bike more stable. By increasing it you will make the bike turn in faster but be more suseptable to headshake.
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post #15 of 20 (permalink) Old 11-14-2013, 11:23 PM
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With about 600 miles on the bike it is likely related to setup, not wear. Check the air pressures. Rear wheel alignment also seems worth checking.
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post #16 of 20 (permalink) Old 11-21-2013, 07:58 PM
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Just to clarify are you sure it wiggle not wobble? wiggle could be damage tire, while wobble can be from the steering problem.
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post #17 of 20 (permalink) Old 04-01-2014, 05:11 PM Thread Starter
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Since initial posting here, bike already has 10,000+ km, stock dunlops were replaced with shinko 705 dual sport tires (bigger front and heavier too). I did another freeway speed last sunday over 150kph, wiggle is still there (I rarely reach that speed anyway). It might be the tire balance, though we dont have many balancing shops here.

At 100-120kph, there is no wiggle, no vibration, no road imperfection felt and the tires are noisier than the exhaust.

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post #18 of 20 (permalink) Old 04-01-2014, 10:25 PM
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Have you set the sag?
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post #19 of 20 (permalink) Old 04-02-2014, 11:20 AM Thread Starter
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Quote:
Originally Posted by waltermitty View Post
Have you set the sag?
yes, using keith code video.

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post #20 of 20 (permalink) Old 04-02-2014, 12:01 PM
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What did you set it at? Increasing sag in rear or decreasing sag in front will make bike more stable at speed. Also decreasing the amount of the fork tube sticking up above the top triple will make the bike more stable at speed.
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