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Slight wobble at high speed

832 Views 50 Replies 16 Participants Last post by  Unkle Krusty
I have a 2008 Royal Star Venture, I got it last year , late in the season.
Around town I haven't seen any issue, but today I took it 1.5 hours away.
This was the first time I tested cruise and high speed riding, 85 MPH interstate.
I let off the steering for a moment to adjust a glove and realized that is started to slightly wobble.
Nothing serious, but was disconcernting. Especially at that speed. So When getting off the interstate I tried again at 65 MPH
Same thing happened.
So now I am trying to figure out why.
41 - 51 of 51 Posts
Someone mentioned dyna beads, This was in Venture forums. Anyone ever heard of them or know what they are
I used Dyna beads in my Semi and and a few bikes and really was not impressed. Changed a semi tire after 40k miles and it was a stupid mess. Putting it in is simple, but tire change time it sucks bad.

Disclaimer: Used whatever brand is sold in Loves truck tire center for semis but it was Dyna bead brand on the bikes.
My post number 14 mentions a tyre that bounced at about 60.
I tried the beads. Did not fix. I tried weights and beads. Did not fix. I tried just weights. Did not fix.
I put on a new tyre. Fixed.

I had a directional steering problem at about the same speed. The steering head bearings were worn, and would lock in, enough to cause the problem. Fixed. Both above on the 79XS1100.

I had a problem similar but not the same on my XS400. The new and useless made in China, one year old, wheel bearing were the problem.

Any directional steering, and or wobble / tingling / funny feeling, is cause enough to check everything.
This is something we would check constantly on the track bikes. It also involves making sure the back wheel follows the front wheel, and checking it for balance. The swing arm bearings also need to be checked. And the swing arm itself for flex. And, thinking of flex. The front forks on some of the Japanese flexible flyers, are too skinny, not robust enough, flexible. The front fender / mudguard is there to try and keep the forks stable / in column / stop flexing. That is not enough. A fork brace needs to be added / bolted on. Reality requires us to admit / realize that the eighties Japanese bikes, did not handle very well. I said as much to the new owner of Laramie, the mint 1980 XS1100 that I sold. These things are not good cornering devices. In fact Yamie would rather stand up, than be tipped around a corner. But if that is all you ride, then how would you know the difference.
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I have noticed also lately that my hands feel tingly after riding for a while. Some wierd vibration perhaps?
I have noticed also lately that my hands feel tingly after riding for a while. Some wierd vibration perhaps?
Lots of good suggestions here but...... What have you done so far to try and find then fix the problem?

S F
Lots of good suggestions here but...... What have you done so far to try and find then fix the problem?

S F
I did check the forks, seemed ok. Seemed Firm but no give.
Tried air pressure in front forks, ended up setting them back to 0.
Didnt see any wear in the front shocks.
Also checked air tire pressure on front and back. They were fine.

No I did not disassemble the entire front end yet.
I did check the forks, seemed ok. Seemed Firm but no give.
Tried air pressure in front forks, ended up setting them back to 0.
Didnt see any wear in the front shocks.
Also checked air tire pressure on front and back. They were fine.

No I did not disassemble the entire front end yet.
You've got to go at it in a systematic way like....
1) VERIFY the front tire is not the problem. (First LOGICAL thing to suspect in this case). To verify you must remove the wheel, check tire balance, spin the wheel/tire assembly looking for an out-of-round condition and of course inspect tread for cupping or other problems. (Any question about the tire, REPLACE) !
2) Check the wheel bearings to make sure they are not rough when you spin them by hand.
3) While you have the wheel off check the steering neck bearings for smoothness of movement and that they are correctly tightened. (NOT Loose).
4) Push / pull the lower fork legs back and forth inspecting for looseness.
5) Check upper and lower triple tree fork pinch bolts. Make sure all are tight.
6), 7), 8), + after all above are verified...

S F
I had a 250 GMC Sierra that had a front end bounce (a very ungentle one) at around 80 kph. I could only get it to stop by jamming on the brakes. My friend who is a mechanic told me to check the shocks. I did some online research and the suggestions were that it was likely the tires. I changed the front tires even though they looked fine. The result? No more bounce!
Number 4 from post 48 above. Is a critical check. But do them all.
Do it soon. Report back.
This is an error on my part, and I can not find a way to delete it. So add it to my other useless posts.
  • Haha
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