Re:Tank slapper handlebar shimmy wobble
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TOPIC: Re:Tank slapper handlebar shimmy wobble
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Re:Tank slapper handlebar shimmy wobble 3 Years, 8 Months ago
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Rider4Christ wrote:
My bike has never done it before, but it has started to vibrate on decel. What nut do you tighten? Is it the big chrome nut that stares you right in the face when you're on your bike (just below the riser)? Are there more than one nut I need to tighten. I checked the wheel while on a jack and it didn't exaclty "slam" to one side or the other, but it was indeed pretty loose. If I wanted to repack or replace my bearings, how would I go about that? Thanks in advance.
The "big chrome nut that stares you right in the face" only holds the top tree down .... it has no function with respect to the 'tightening' down the front end. You need to remove the tree too see the nuts which affect the bearings.
Doc
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Re:Tank slapper handlebar shimmy wobble 3 Years, 8 Months ago
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Tightening it down will probably solve it, unless you have a flat spotted bearing. My dealer tightened mine down for 45 bucks. Was worth it for me. I ended up have new bearings and races put in because of a flat spot that I guess it got hitting a pot hole. They tell me its not a big job once you have done it.
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\\\\\\\\\\\\\\\"A mind full of judgment has little room for wisdom\\\\\\\\\\\\\\\"
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Re:Tank slapper handlebar shimmy wobble 3 Years, 8 Months ago
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I just went thru the service manual, it looks pretty strait-forward. Only, you have to have a special tool (I'm sure yamaha would be glad to sell me one) to tighten the nuts. And I need a torque wrench (been meaning to get one of those anyways).
I would love to do it this tuesday/wednesday (off days), but I'm leaving for a 5 hr road-trip down to the beach on Saturday. Don't wanna have it taken apart w/ no time to put it all back together.
The problem is mainly in the grey matter between my ears(as of now) with the vibes, so I think I'll tackle this when I come home.
Man, between that service manual and you guys, a fella feels like he could build a bike from the ground up! 
Thanks!!! |
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Re:Tank slapper handlebar shimmy wobble 3 Years, 8 Months ago
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I think I paid $37 US for the tool. You don't really need it and most of the time I use a pipe wrench.
Tighten is hard to take the slack out of the bearings, back off and tighten lightly.
Doc
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Re:Tank slapper handlebar shimmy wobble 3 Years, 4 Months ago
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Steering bearing torque, Wheel balance, tire worn unevenly due to wrong tire pressures. All of these can contribute to front end shimmy. I can take my hands off the bars on decel at highway speeds and it is steady as a rock. You mentioned you had 4000 miles. Check your bearing torque. Could be that it has seated from new, and has loosened up. Over torque it to seat the bearing. Back it off without breaking the seat of the bearing. Torque to specified torque. Should be some resistance while jacked up and turning side to side, but not too much. |
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Last Edit: 2009/01/11 19:00 By Road_Hawg.
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Re:Tank slapper handlebar shimmy wobble 3 Years, 4 Months ago
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Its been 5 months I hope he has it fixed by now  ...Coug  |
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Re:Tank slapper handlebar shimmy wobble 3 Years, 4 Months ago
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Shoot, I guess I need to start looking at the dates. A follow up post of what was done to correct the problem would be a sure way of knowing it is a done deal. Just trying to help.
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Last Edit: 2009/01/11 19:04 By Road_Hawg.
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Re:Tank slapper handlebar shimmy wobble 3 Years, 4 Months ago
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It's not fixed... but hey, I'm in Minnesota. Wind chill is supposed to hit minus 35 this week. I'll get it fixed this spring, and happily report on it then.
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Tom Heimerman
Shoreview, Minnesota
2006 Road Star Midnight
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Re:Tank slapper handlebar shimmy wobble 3 Years, 4 Months ago
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Road_Hawg wrote:
Shoot, I guess I need to start looking at the dates. A follow up post of what was done to correct the problem would be a sure way of knowing it is a done deal. Just trying to help.
Well you were right RH he has not fixed it yet maybe you are
Psychic don't feel special you are not the first to do that ...I just figured you had mixed it up with the other 2 current threads on the same subject.Its not hard to do that.Some folks come here only when they have problems and you never hear from them until they get in a jam again...Coug
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