Bar shake

mrchips · World Chat Champion Joined: 05 Mar 2004 Karma :

My GPZ500S seems to have developed a bit of a problem in thefront end. At around 50mph the bars shake, now you cannot really feel this unless you let your hands off the bars and if you do the bars shake quite vioilently. Not fully tank slapping but maybe a good half turn anyway. I have checked the yoke forks wheels etc and nothing is lose, fork seals were replaced recently and so on. Can't think what it could be. Any ideas?
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no_shad · Trackday Trickster Joined: 17 Apr 2005 Karma :

Balance weight may have came off the wheel.
Bearings could be gone/going.
Warped disk.
Ding in the wheel.
Could always try heavier bar ends.

White Noise · Mr Dudwee Joined: 17 Dec 2004 Karma :

what condition is the front tyre in? i believe that either stinkwheel of kickstart where having a similar type of problem, they replaced the front tyre and it went away
WN
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mchaggis · World Chat Champion Joined: 09 May 2004 Karma :

IIRC, the tyres on a GPZ really want replacing by the time they've worn down to 2 mm. For some reason, the handling is really cocked up with a worn tyre.
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White Noise · Mr Dudwee Joined: 17 Dec 2004 Karma :

heres stinkwheels post

https://www.bikechatforums.com/viewtopic.php?t=54871&highlight=gpz

hope it helps
WN
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Buy my wife: 96' Yam XJ600s (Diversion)
Wing Commander White Noise - SE Clique
Riding Tip #86: See God, then back off a bit: Problem is i haven't seen god yet, just a close up of tarmac on revett straight

biker-dj · Spanner Monkey Joined: 10 Apr 2005 Karma :

How strange.. I had this the other day on my GPZ 500S - tread was ok tyres seemed ok checked the tyre pressure well low - whoops - topped up pressure problem solved. Hope this helps Wink

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stinkwheel · Bovine Proctologist Joined: 12 Jul 2004 Karma :

What they said. Easy fixed.

I keep forgetting about it too.
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map · Mr Calendar Joined: 14 Jun 2004 Karma :

Just another vote for checking the tyres - that's the wear and the pressure. It's surprising how a little variation in pressure can make a big difference on the road. HTH Thumbs Up

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