GT rear shock rubbing

[BA APEX]

mudman, thats exactly what I think needs to be done. let us know if there is any trouble with the diff. mounting position.
I may do same thing either this season or during the summer.
everyone else that has track rubbing, make your dealer call it in to yamaha Cust. service. Maybe thaey will do the fix after the season.

 

[Randy J Beyer]

Call and complain as this should be covered by Yamaha. 800-962-7926

I agree with making sure they cover these type of problems

Studs should not matter as this is a design problem.

 

[RTX]

nice rumble.
i understand your complaint but the reason i posted was to try and help out. i agree that we should not have to re-engineer these things but spend 15 minutes over on dootalk and see the problems they have. our problems are really not even problems compared to what is going on over there. blown engines-fires, you name it they got it!!!
honestly i would prefer to spend 50 bucks and fix this little issue then wait and see if something happens.

06rtxrider please post what you find once you swap the wheels. also where did you get the larger wheels and do you have a part #. thanks

mudman please post some pics if it is possible and please post an update to let us all know how this fix worked out

 

[06RTXRider]

Mudman, will moving the shock mount point change the geometry of the suspension. This is a pivot point and will now change the force necessary to move the shock. remember on the proaction skid there were 3 positions you could put the shock in. Just a thought, sounds like what you did is a good idea if it doesn't have negative consequences

 

[leaddog]

Mudman, could the bearing rollers, spacers and longer bolt be added without moving the shock mount? I was thinking of trying this the next time I have the skid out. (Sled is at the cabin now)

 

[welterracer]

Moving the shock mount would DEFINITLY change the rate at which the arm works..

 

[mudman]

I think the bearing setup would work fine in the stock hole, I will try and get some pics.
I think it will probably change the geometry some, if its for the worse I can always make the stock hole again.
Having the hole lower might give the rear arm less leverage on the shock stroke, making it a little stiffer. I could be wrong. will find out in a few days

 

[leaddog]

I'd love some pics. I have been thinking of doing this for some time.

 

[06RTXRider]

You may be able to compensate by adjusting your shock. I like the concept of this and wonder if something like a marginal snow wheel could be fitted in there. You really would only need to add one to one side of the mount, i think that would keep it off the shock mount.

I don't want to drill and weld for warranty purposes. I'll leave it to Yamaha to come up with a solution like that.

I hate paying 10G's to be a guinea pig.

I still think

 

[leaddog]

Just a bearing to use as a smalll roller on each side of the shock mount held together by a longer bolt. Guess I'm just a little more pro active than most. The rest can keep waiting for Yamaha to fix the zerks, the rubbing, the wheels, the springs, the slides, the track and the handwarmers, skis, darting, windshield.... I'll be out riding.... See ya.

 

[Nice Rumble]

Re: Track clearance

I have a Apex ER, no studs, have added a 4th wheel and have noticed some rubbing of the track in the center by contact of the shock.

I had my dealer service department inspect it, and their reply was that everything looks okay, as they had 3 other sleds that had the same rub marks. Just because the others had it makes it okay?? I talked to the owner of the shop as he asks how I like the sled so far, mention the track rub and he says no need to worry as I have the extended warranty. Still doesn't mean the rubbing of the track is right to me.

So I proceed to call Yamaha Customer Service and the guy I talked to says he hasn't had any calls about this previously, same story with the grease fittings leaking.

I also ask the cs rep that as they do not seem to be concerned with the problem, and as time goes on, more rubbing of the shock & track, and damage to the track happens, if it is covered by the YES warranty. He says NO as it is wear & tear-WHAT?! I state to him that this is a design issue, the Attaks have sliders on both sides of the shock mount to prevent this problem, but the 121" sleds don't.

So this guy mentions he has a snowmobile tech coming in soon so he'll ask about it-I'm sure I'll get a return call-yea, right. Do they have people at Cypress who deal with sled issues?

I agree, we don't need to be doing the R&D for the manufacturer.

Anyone with this problem or any other issue, I suggest a call or visit to your dealer AND Yamaha customer service-more calls can't hurt.

I wouldn't be surprised to see a revised rear suspension arm on the 121" sleds for '07 with the Attak-style sliders.

Your customer service rep is blowing smoke. "He says NO as it is wear & tear-WHAT?!" The proper term is "NORMAL wear and tear" This is certainly not NORMAL and he should know that. Tracks don't NORMALLY wear out in the center. It's wearing out because there is an interferance problem. It's making contact with the end of the shock. Hello? What a bunch of BS. Nobody wants to be accountable and take responsibilty. Yamaha is becoming too big for it's own britches.

 

[YamiSmurf]

Mudman, By lowering the shock, could you have also used the smaller marginal snow wheels? Or would there have been a clearance issue?

YS

 

[mudman]

Yamasmurf- The wheels from the kit would probably fit well I think, perhaps just right with the lowered hole. I was missing 1 wheel from the kit so I just went with the bearings, I ve got a wheel coming and will see how it fits.

 

[06RTXRider]

Well, no big surprise the larger wheels i ordered are out of stock/backordered. I did find some 8" wheels today and need to see if they will work in this application.

Meanwhile sled is at the dealer and will have some info for me tomorrow. Maybe i won't need the wheels or i'll see if a marginal wheel will fit in there like mudman did. I'm not going to relocate the mounting hole for the shock.

Mudman, do you think 2 wheels would be necessary? I think if you mounted one on either side of the shock mount it would be close enough to the center of the track to keep the track off the shock. just a thought

 

[SledFreak]

I noticed mine is rubbing as well. I do have studs, but they are not hitting the shock, just the track is. But it's hard to see if it has done any damage or not. I can't put my finger in there to see because it's so tight. It does look like it's has a flat edge to it, but I'm not sure if it is like that from the beginning or not. I have 350 miles on it now. I would think that by the track rubbing, it has to be adding even more drag to the system. We need tro free this chassis up.