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Fork head shake at low speeds

This is for general posts and questions concerning only the Voyager XII (1200cc, Four-cylinder) Years 1986 thru 2003.

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EZdriver
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Fork head shake at low speeds

Post by EZdriver »

My '94 has a tendency at speeds around 40 and below to begin shimmy of the front end. If I let go of the bars, it starts and probably would progress into tank banging quickly. I installed new Dunlops and used Dyna-Beads for balance. Anyone have this problem? Also, I notice when I'm straight and level, my handlebars are slightly off of straight ahead using the fairing as a reference.
First, is the shimmy normal and second, how do I straighten the bars. I'm sure it's a simple loosening of the triple tree clamps and re positioning, but I need some guidance.
Thanks, all..
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1994 Kawasaki ZG1200 Voyager XII (Current ride)
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1970 Yamaha 400 Enduro
1969 Kawasaki 500 Mach III
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cushman eagle
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Re: Fork head shake at low speeds

Post by cushman eagle »

First,make sure the steering stem bearings are torqued to 95 inch pounds and the front tire pressure is 34-38 pounds(I like 34).You did not mention what Dunlop you use(I hope not the 404).Are your front wheel bearings good?Let us know the results.
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doug of so fla
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Re: Fork head shake at low speeds

Post by doug of so fla »

Just a thought, Are the top bars adjusted evenly, (Do the hatchmarks and grooves line up where the top bars connect to the bottom bars.??

If lined up then you may need to check to see if shocks are even. Loosen upper & lower tree pinch bolts & axel bolts and align so everything is even, using benchmark measurements. If it is the bars bent they can be straighten fairly easy.
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Re: Fork head shake at low speeds

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Re: Fork head shake at low speeds

Post by EZdriver »

I think the solution is what Doug suggested. Loosen the pinch bolts and make sure everything is lined up. The bike fell over on the one side and I'm sure the bar hit the asphalt.
I have Dunlop E3 Elites. Not 404's.
After all that I'll check and see if that helps.
Thanks.
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1994 Kawasaki ZG1200 Voyager XII (Current ride)
2003 Victory V92TC (sold)
1988 Kawasaki Voyager XII (sold)
1970 Yamaha 400 Enduro
1969 Kawasaki 500 Mach III
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gan
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Re: Fork head shake at low speeds

Post by gan »

cushman eagle wrote:First,make sure the steering stem bearings are torqued to 95 inch pounds and the front tire pressure is 34-38 pounds(I like 34).You did not mention what Dunlop you use(I hope not the 404).Are your front wheel bearings good?Let us know the results.
At about 30K miles, this started in my 2000 also, and Wyzard's (R.I.P.) got me to try the steering stem fix (apparently bearing seats were not fully seated, or painted first and paint wore out. or ??? - it was a pretty common complaint or worry when XIIs were new.
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Re: Fork head shake at low speeds

Post by voyager55 »

Wobble problems are common in large touring bikes. The 1800 Goldwing can have a wobble to. Many wing owners change the bearings out
Eliminate potential cause and you can fix it.
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Re: Fork head shake at low speeds

Post by EZdriver »

My '94 only has 7200 miles on it since new, so bearings aren't the problem. I'm going to loosen the pinch clamps and axle and realign the front wheel to the back with 2X's, then re-tighten everything to spec.
Patriot Guard Rider Long Island
1994 Kawasaki ZG1200 Voyager XII (Current ride)
2003 Victory V92TC (sold)
1988 Kawasaki Voyager XII (sold)
1970 Yamaha 400 Enduro
1969 Kawasaki 500 Mach III
1960 Cushman Scooter
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