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Front end wobble

boxofish

boxofish

Husqvarna
A Class
Hey all,

I'm wondering if anyone else is experiencing a front end wobble at higher speeds (120-130 km) on the TE 630? I've tried different front tires and it hasn't made a difference. Doesn't seem to be an "up down" so much as a side to side feel. It's a little scary till I back off the throttle and it subsides...

Anybody else?
 
Have you set the sag for your weight?
Also, if you've got huge handguards, they can act like sails and give you some head shake.

How many miles? Some tight or notchy head bearings can amplify the issue.
 
RDTCU said:
Have you set the sag for your weight?
Also, if you've got huge handguards, they can act like sails and give you some head shake.

How many miles? Some tight or notchy head bearings can amplify the issue.
Click to expand...
Hmm, never thought of the handguards. I've got the HDB ones and yeah, they're pretty big. So far as I know the sag is good and as for balancing the wheel, haven't tried that yet but these are all good ideas guys. Don't have many miles on it, 7500ish km.
 
I would suggest that your sag is not set correctly. It sounds like it's too high in the stroke which tucks the front in in and with more sag dialed in this should be corrected.

Paw Paw
 
As above set sag, balance wheels but i double checked stearing head bearing are ok and tight
 
Some headshake on knobbies at 80mph on a naked thumper seems part of the territory. When I know I will be spending a lot of time at speed, I switch to 17" rims with street tires. No headshake at WOT. On my TE rims, I've found that a combination of relaxing on the controls, moving my weight forward, lowering the front forks of by roughly 1cm on the triple clamps (and re-checking sag), and switching to an SM-style front fender all incrementally improved headshake.

Besides sag, balance and bearings, it might be worth checking the rear wheel alignment. Also check the break discs/pads aren't warped or catching, and look for damage on the rims, etc. As Troy says, a good going over... See also http://www.cafehusky.com/threads/head-shake-death-weave.3045/
 
I bought a TE630 on Saturday and set off on the freeway to drive it home to SF from LA. I noticed the same wobble at 70mph with knobby tires and huge handguards. I found that if I sat further back on the seat, the problem went away and I could go faster. I'll look into adjusting the sag.
 
All good info. My 630 wanted to shake with the stock tire, but not with any other. I also changed out the rear spring to one softer as the stock is set for two-up. Just not enough sag. No shake now at freeway speeds and up to 90 mph or so. Fast as I've taken it. A friend with a 630 has run 100 with D606's. Suspension setup is key. Steering head too, if it is loose.
 
I have experienced the same high speed wobble. Bike is new to me and I hadn't adjusted the suspension yet. Brand new Pirellis on her.

I had too much sag and tightened the rear up. Didn't do too much to the front but I did decide to raise the forks a little - maybe 10mm. Wobble "seems" a little less noticeable but it hasn't gone away. Now need to look at alignment, balancing etc...
 
Can anyone give me an idea as to what the rear suspension sag should be. I checked mine today with the help of a friend and got about 3". Is this in the ballpark or maybe contributing to my problem?
 
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