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15 Sep 2005
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Registered Users
HUBB regular
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Join Date: Apr 2005
Location: Colorado
Posts: 25
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wobbling handle bars F650 classic
When my '98 F650 is fully loaded with traveling gear (Jesse bags, camping seat bag) and when decelerating there develops a wobble in the handle bars (tank slapper like but very light). It only happens at 40 mph. For example if i decelerate from 60 to 50 mph or from 30 to 20mph no problems but if i cross 40mph mark i get a little wobble. And it dosen't happen when bike is unloaded. I have been adjusting tire pressure and that seems to affect the intensity but I can't completely solve the issue. What is a likely culprit? What else should I adjust?
Kyle
[This message has been edited by saker (edited 15 September 2005).]
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15 Sep 2005
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Contributing Member
Veteran HUBBer
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Join Date: Jul 2002
Location: Sydney, NSW, Australia
Posts: 1,362
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Basics - rear supension pre load - you have adjusted that for your load?
The steering head bearing preload could cause this.
Other things -
wheel beairngs (front and rear)
swing arm pivot bearings
__________________
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Regards Frank Warner
motorcycles BMW R80 G/S 1981, BMW K11LT 1993, BMW K75 G/S
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16 Sep 2005
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Registered Users
HUBB regular
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Join Date: Apr 2005
Location: Colorado
Posts: 25
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thanks
rear shock is good, brand new Olins thats fully cranked
Steering head bearing is good
front & rear wheel bearings were just replaced
As for the swing arm, those bearings looked a little warn (but BMW guys said they'd be fine) so i'll replace those the next chance i get which looks to be Quito
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16 Sep 2005
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Contributing Member
Veteran HUBBer
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Join Date: Jul 2002
Location: Sydney, NSW, Australia
Posts: 1,362
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Err go back to the last thing you did and check it. That is uysually my problem.
__________________
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Regards Frank Warner
motorcycles BMW R80 G/S 1981, BMW K11LT 1993, BMW K75 G/S
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16 Sep 2005
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Super Moderator
Veteran HUBBer
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Join Date: Oct 2000
Location: South Island, New Zealand
Posts: 798
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My F650 has been known to do this when the front tyre is both worn and off pressure. Not scary, just a gentle weave over about a 10km/h range.
Regards
Nigel in NZ
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"The world is a book and those who do not travel read only a page"- St Augustine
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