High speed wobble


Technical information and Q&A applicable to all years and models of Goldwings
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seelyark1
Posts: 465
Joined: Sun May 27, 2012 1:57 pm
Location: Dunnellon, Florida
Motorcycle: 2000 GL1500 SE
1998 GL1500 SE Totaled
1984 VT500C
1967 CB550-4

High speed wobble

Postby seelyark1 » Tue Feb 25, 2014 1:52 pm



Running along at 70 mph and hit a small bump that started the bike to wobble. I deccelerated and the wobble went away. Got to checking to try to find what caused it to begin with. Seems that while straddeling the bike and turning the handlebars side to side quickly, the whole bike shakes like the wheels are loose. Put on center stand and checked the rear tire and doesn't seem loose and the swing arm seems solid. Jacked up front tire and all seems solid. Any ideas?
Also just finished the "What every one do for a living". Took 2 evenings to read all 8 pages. Will try later to get it started again. Seems I have a lot in common with a lot of other Wing riders.
Thanks!


Ride safe, and smart. Asphalt is like #1 grit sandpaper. Dave

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redial
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Location: Kapunda, SouthAustralia
Motorcycle: 1997 GL1500 Spectre Red Aspencade

Re: High speed wobble

Postby redial » Tue Feb 25, 2014 7:49 pm

Has the GW got a fork brace?
Len in Kapunda

The world is not going to finish today, as it is already tomorrow in Australia and New Zealand, and other islands of foreign nations such as Guam and Samoa.

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seelyark1
Posts: 465
Joined: Sun May 27, 2012 1:57 pm
Location: Dunnellon, Florida
Motorcycle: 2000 GL1500 SE
1998 GL1500 SE Totaled
1984 VT500C
1967 CB550-4

Re: High speed wobble

Postby seelyark1 » Tue Feb 25, 2014 10:10 pm

Yes it does. Going to recheck the rear tire pressure in the morning. Is strange as the whole bike shakes. Will keep looking til I figure it out. Just standing there and the whole bike shakes but the front wheel stays steady. Just the change in caster of the front wheel turning side to side sets it off. Was one of the reflectors on the road that started it. The more I think about it, the more I think it is from the rear end some how.
Ride safe, and smart. Asphalt is like #1 grit sandpaper. Dave

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WingAdmin
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Re: High speed wobble

Postby WingAdmin » Tue Feb 25, 2014 10:54 pm

seelyark1 wrote:Yes it does. Going to recheck the rear tire pressure in the morning. Is strange as the whole bike shakes. Will keep looking til I figure it out. Just standing there and the whole bike shakes but the front wheel stays steady. Just the change in caster of the front wheel turning side to side sets it off. Was one of the reflectors on the road that started it. The more I think about it, the more I think it is from the rear end some how.


Check the swing arm pivot for correct torque and the pivot bearings for looseness. My GL1100 did the exact same thing, and that's what the cause ended up being - the pivots were inserted incorrect (left one on right side and vice versa), and torqued incorrectly. Once put in correctly and torqued to the correct value, the wobble disappeared.

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seelyark1
Posts: 465
Joined: Sun May 27, 2012 1:57 pm
Location: Dunnellon, Florida
Motorcycle: 2000 GL1500 SE
1998 GL1500 SE Totaled
1984 VT500C
1967 CB550-4

Re: High speed wobble

Postby seelyark1 » Wed Feb 26, 2014 10:22 pm

Have yet to find out what that torque is supposed to be. Spent most of the day reading on here as the rain was being blown into the garage, and I wasn't going to lay in it. Tomorrow is supposed to be better. At least it isn't snow. Went and picked up the new tining belts this AM and had to steal the wifes truck for that.
Ride safe, and smart. Asphalt is like #1 grit sandpaper. Dave

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RoadRogue
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Location: Castlegar BC, Canada
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Re: High speed wobble

Postby RoadRogue » Thu Feb 27, 2014 2:10 am

While you have it apart you may as well check the steering head bearings. I am willing to bet a cookie they are in need of some attention ,be it a cleaning and new grease if applicable, and a re-torque.
Too loose can cause wobbles too. At least have a look to give you peace of mind.8-)
Ride safe, Todd
Over night campers welcome

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dingdong
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Motorcycle: 1976 gl1000
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Re: High speed wobble

Postby dingdong » Thu Feb 27, 2014 7:14 am

Left pivot bolt is 14 lbs and the lock nut is 72 lbs.

Edit: forgot to mention that you will need a "special" tool to do this job. I made my own.
Tom

A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed.

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seelyark1
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Location: Dunnellon, Florida
Motorcycle: 2000 GL1500 SE
1998 GL1500 SE Totaled
1984 VT500C
1967 CB550-4

Re: High speed wobble

Postby seelyark1 » Fri Feb 28, 2014 10:00 pm

Thanks for the info. This retirement is not all it is cracked up to be. Two days and I still haven't had a chance to check out my problem. With a little luck I will get a chance to check it out tomorrow without all the "honey do" list getting any longer garbage.
Ride safe, and smart. Asphalt is like #1 grit sandpaper. Dave

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Sidcar
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Location: Birmingham, England, United Kingdom
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Re: High speed wobble

Postby Sidcar » Sun Mar 02, 2014 12:51 pm

Check:
Tyre tread wear
Tyre pressures
Wheel bearings
Swinging arm bearings
Head race bearings
Fork oil level
Rear dampers

Still wobbling?
Junk in saddlebags or trunk (weight distribution)
I've found some tyres cause "white line wobble" even though they're only half worn.




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