I took my rear suspension out yesterday and noticed the rear eyelet on the shock has been rubbing, it's worn half way thru the eyelet in 570 miles.
I noticed in an earlier post someone mentioned the Attack had a small set of sliders to protect the rear mount. I know the shock on the Attack is different but isnt it in the same location?
I havent noticed any type of slider setup for the gt shock, anyone have any info on this? also I have 144 down the middle so you guys might want to take a look at yours.
On another subject, while I had the suspension out to change the slides, I thought about putting on larger rear wheels, I put 4 wheels on back from an F7, I had to make a spacer and use the F7 tube but they fit nice and are just a little bigger than stock.
I also added 2 extra idler wheels on the outside of the rails just behind the inners. also from the F7, they are a little skinner than stock, I haven't tried it yet but everything lines up nice.
I noticed in an earlier post someone mentioned the Attack had a small set of sliders to protect the rear mount. I know the shock on the Attack is different but isnt it in the same location?
I havent noticed any type of slider setup for the gt shock, anyone have any info on this? also I have 144 down the middle so you guys might want to take a look at yours.
On another subject, while I had the suspension out to change the slides, I thought about putting on larger rear wheels, I put 4 wheels on back from an F7, I had to make a spacer and use the F7 tube but they fit nice and are just a little bigger than stock.
I also added 2 extra idler wheels on the outside of the rails just behind the inners. also from the F7, they are a little skinner than stock, I haven't tried it yet but everything lines up nice.
06RTXRider
Expert
the attack skid is different and does not have the same problem. I have an rtx and have dhunks missing from the inside of the track. Dealer tells me i need to run the track tighter. bull@#$%!!! I ran it tighter, did not increse the clearence, just added a lot of chassis drag which it alredy has enough of. I took it to another dealer yesterday and they are going to look at it on monday. I have 144 studs and none in the middle so i have no shock damage however another guy on this site had a similar situation on an rtx and had damage to the shock. I would encourage everyone to take a close look at their sled. Dealers suprisingly seem to have no knowledge of the problem.
X-APE
Extreme
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- Sep 13, 2005
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- 122
My Gt is showing signs of light track rub by the shock too. Nothing damaged yet but if it continues it will eventually start to rub chunks off track.
06RTXRider
Expert
I'm not sure if the weight of studs compound the problem or not. some guys say they rub even without studs. dealer says because of studs yamaha will not do anything. Glad i spent 10g on a sled i can't stud if i want to. I ordered 2 73/4" wheels to replace the wheels in the tunnel, i didn't get them yet and thats a whole different story, nonetheless i am switching dealers because of the difficulty i'm having. I've had yamaha's for quite some time now and i've never been so frustrated. Viper sure rode like crap but i did'nt have to look underneath it at every corner to make sure the wheels and track weren't destroyed.
Nice Rumble
Expert
I just took a look at the clearance between the rear end of the shock and the track. OMG! There is only about 1/4 of clearance between the two. If you have studs literally up the center of the track I can why the eye of the shock bolt is getting worn down. I know some guys are having problems even without studs. I think Yamaha should have put more room between the two. It's dangerously close. Take a look!
leaddog
Expert
Mine's rubbing too. I plan to turn it over when it starts to get thin. After that replace the shock end when I do an oil change on the shock. I don't see a good solution to this one. 
RTX
TY 4 Stroke God
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- 2014 viper rtx
2006 apex rtx
I posted this before and got no answers so i will try it again.
does anyone think a larger set of wheels on the top side of the suspension would help the rubbing problem. for instance if the top wheel is 6 inch and you increased the size of the wheel to 6.5 inch it should lift the track up .25 of an inch further away from the shock
does anyone have any ideas if adding a larger wheel will cause any other problems
does anyone think a larger set of wheels on the top side of the suspension would help the rubbing problem. for instance if the top wheel is 6 inch and you increased the size of the wheel to 6.5 inch it should lift the track up .25 of an inch further away from the shock
does anyone have any ideas if adding a larger wheel will cause any other problems
Nice Rumble
Expert
I don't know the answer to your question but the thing is we should not be doing R & D for the Yamaha corporation. If there clearly is an issue here Yamaha never should have released these sleds to the public. If the larger wheels solves the problem then they should have been on the machine during production.
06RTXRider
Expert
My only solution was possibly the larger wheels. Stock wheels are 7". I ordered wheels that are 7 3/4". don't know if this will solve the problem or not. Still waiting for them to arrive.
My dealer does not seem very motivated to service their customers. I've since began talking with another dealer who seems to want to come up with a solution. I called yamaha, the end result basically being they talked with my dealer who told them as long as the track is run extremely tight this should increase the clearance, also the damage to the track would not sacrifice the strength of the track so they would do nothing about it at this time. As soon as they see the studs it's an instant scapegoat.
I'm hoping the wheels increase the clearance and i can run the track a little looser. Maybe i'll here from my new dealer tommorow. wheels will not be here untill the end of the week.
My dealer does not seem very motivated to service their customers. I've since began talking with another dealer who seems to want to come up with a solution. I called yamaha, the end result basically being they talked with my dealer who told them as long as the track is run extremely tight this should increase the clearance, also the damage to the track would not sacrifice the strength of the track so they would do nothing about it at this time. As soon as they see the studs it's an instant scapegoat.
I'm hoping the wheels increase the clearance and i can run the track a little looser. Maybe i'll here from my new dealer tommorow. wheels will not be here untill the end of the week.
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.
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.
BA APEX
Expert
my deal with yamaha customer service basically ended up "bottoming out" was the cause.??? didn't get anywhere with them. All people with the 121 skid need to at least get pics of the rubbing in the center of the track. maybe future troubles will be handled if these are documented. call the customer service number 800-962-7926 & give them your name, sled serial number, & let them know your problem.
I have chunks now out of my track, and when it does get time to replace it, I hope there is a fix or covered.
The customer rep that I talked to on the phone also sais taht they haven't heard anyone else with this problem. I told her that was not true, I have heard of several people with track rub. we need to get people to call and explain to them there is some kind design flaw!
I have chunks now out of my track, and when it does get time to replace it, I hope there is a fix or covered.
The customer rep that I talked to on the phone also sais taht they haven't heard anyone else with this problem. I told her that was not true, I have heard of several people with track rub. we need to get people to call and explain to them there is some kind design flaw!
06RTXRider
Expert
I think mainly the RTX will have the problem due to the shape of the shock. The Ohlins shock in the GT has a smaller more rounded mounting point. It's not as big as the shock in the RTX thus reducing the amount of contact with the track.
Regardless, over time any rubbing will eventually lead to blisters and chunking of the inside of the track. I don't feel it's related to track tension as the clearance doesn't seem to change when you adjust that. Tighter will only pull the center of the track closer to the shock because the wheels support the track next to the tunnel.
I also encourage anyone with rubbing call yamaha and tell them about it. I hope it's only a few sleds affected but maybe the rear arm was welded wrong changing the geometry?? Who Knows??
Regardless, over time any rubbing will eventually lead to blisters and chunking of the inside of the track. I don't feel it's related to track tension as the clearance doesn't seem to change when you adjust that. Tighter will only pull the center of the track closer to the shock because the wheels support the track next to the tunnel.
I also encourage anyone with rubbing call yamaha and tell them about it. I hope it's only a few sleds affected but maybe the rear arm was welded wrong changing the geometry?? Who Knows??
welterracer
TY 4 Stroke God
Take studs out of the middle if its such a big problem and install more in the outside!
Track rub, studs or not!
The track rubbing problem is happening on both studded and non-studded sleds.
As BA Apex mentions, anyone with this problem, as well as the leaking grease fittings on the rear skid should call Yamaha and get it documented!!
The track rubbing problem is happening on both studded and non-studded sleds.
As BA Apex mentions, anyone with this problem, as well as the leaking grease fittings on the rear skid should call Yamaha and get it documented!!
Well as you know yesterday I had the rear skid out, and while looking
at it I decided to move the bolt hole down 5mm, to get the eyelet of the shock away from the track,seems to be plenty of clearance for this during susp travel.
I drilled new holes and welded on washers and filled in old holes, now I had to trim the tops of the ears also for more clearance.
I have more clearance now but I thought about adding a protector of some sort, I ended up mounting 2 bearings (6204) on both sides of the shock mount, to get the bearings to fit on I used the aluminum spacers from a marginal snow kit I had around, since I had welded on washers to the outside of my new holes all I needed was a longer bolt. the washers hold the bearings out just a little and rotate with clearance to spare. I bolted It all together and It looks great.
Now if the track comes down that far it will hit the bearings first.
Also checked clearances in the middle of track, there is 1/4 clearance side to side between bearing and driver lugs if it came down that far.
Sorry I dont have any pics to show.
The season is to short to wait for yamaha to do anything.
at it I decided to move the bolt hole down 5mm, to get the eyelet of the shock away from the track,seems to be plenty of clearance for this during susp travel.
I drilled new holes and welded on washers and filled in old holes, now I had to trim the tops of the ears also for more clearance.
I have more clearance now but I thought about adding a protector of some sort, I ended up mounting 2 bearings (6204) on both sides of the shock mount, to get the bearings to fit on I used the aluminum spacers from a marginal snow kit I had around, since I had welded on washers to the outside of my new holes all I needed was a longer bolt. the washers hold the bearings out just a little and rotate with clearance to spare. I bolted It all together and It looks great.
Now if the track comes down that far it will hit the bearings first.
Also checked clearances in the middle of track, there is 1/4 clearance side to side between bearing and driver lugs if it came down that far.
Sorry I dont have any pics to show.
The season is to short to wait for yamaha to do anything.
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