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My Grizzly apparently has some serious front end issues. They were getting annoying with my old tires (Blackwater XTs) but with the new Bighorns they've gotten even worse.

When going in a straight line on relatively flat ground, the handlebars will "rock" from side to side, as if you're trying to turn left and then right. This happens non-stop and the only time it goes away is when taking a turn. It's really evident now, as the bars will move a good 10 degrees or so each time.

One thought are bent tie-rods (again) but I'm not convinced that this is the only problem.

My initial plan is to swap the Holeshot ATRs from my Rincon onto the Grizz and vice versa to eliminate the chance that the tires are the cause.

Still, I thought I'd ask here in case anybody else has experienced this.

Rob
 

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Discussion Starter #2
Small update.

I was just in the garage inspecting the front end. Everything looks fine. With the quad in the air, the front wheels rotate freely and truly. The only way I can make the handlebars "wobble" the way they did on the last ride was to physically move the wheels from side to side.

What I did notice that was interesting were the toe measurements between when it was in the air versus on the ground. In the air, it had about 1" of toe IN, but on the ground, it was at nearly zero toe. Very odd.

Could this be indicative of bent tierods?

Rob
 

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Hi Rob as for your problem, I have had this with my Grizzly.On the 02 I found at speeds of 35 to 45 mph( flat surface) with the 28"DD that wobble in the steering was there,just bad enough to notice .When I dealt the 02 for the 04 I found the same thing with the same tires on the 04 .I guess my next move will be a talk with my tire guy about balancing them. Mike
 

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If the toe measurement is changing a full inch from elevated to grounded, I would start looking for what is loose or bent. Like the frame or possible a-arms.

While you have it elevated, did you try to move the wheels in every axis? Maybe a worn upper or lower ball joint or steering knuckle. When elevated they will be in a relaxed state and may look normal. When it is grounded, they cam be persuaded by the full weight to take up or let out the slack and exhibit bad camber, caster and/or toe.

Check them before they check you. Better to be safe now than sorry later.

:)
 

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Why the toe in changed during the movment is just bump steer as its named.

when u go on a flat roade the rear syspension will be compresst and the front suspension is "lifted" a bit and then your toe in change thanks to bumpsteer.

do u have original rims? becaus if u use other rims with more offset u can get that feeling.
 

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Rob, was this problem not caused by the different makes of axles in front?

Gorilla Axle on right front (replaced damaged stock part) ?????
 

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Rob, was this problem not caused by the different makes of axles in front?

Gorilla Axle on right front (replaced damaged stock part) ?????
 

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Toe in on the griz is just like a snowmobile when you get the weight off of the tires or ski's it changes. On a snowmobile the toe is set with the sled on the ground, equal distance from the spindle front and aft is where the measurement is taken, should have some toe out in it otherwise it will hunt all over the place, sounds like that is what you are experiencing with your griz. That measurement is taken with the weight off of the front end and set at I think 1/8 or 1/4 inch toe out, don't remember right now for sure, call the local yami shop and ask to be sure. Take a white grease pencil or some type of marking pen and hold it up against the center of the tire and make a line by spinning the tire one revolution, do this to both tires. Make sure that the tires don't move then measure across the front and the back they should be a little differn't like the 1/8 or 1/4 inch. Make sure you are measuring at 90 degrees front and rear from the center of the hub. I took a level and marked a couple of differnt spots on the tire and checked the measurements several times. When you set the machine back down you will notice that the toe out increases, this is normal, if you add weight to the front it increases more. You can really see that on a set of snowmobile ski's as they are long and the movement is more noticeable. When I checked my griz it was off by 1/8 inch from factory so I didn't change anything. Also make sure the handlebars are straight and any adjustment made from there.Check and recheck to be sure. Danny
 
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