Help with 2015 rtx dx suspension

P

picasso

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Location
Holland, Michigan
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Snowmobile
SR Viper R-TX DX
I have 2 vipers that I have issues with. In corners on nicely groomed trails they both just slide like they are on ice. Takes a lot of force also. They also wander all over the trail just cruising along 35- 45 mph. Not sure what to adjust. Front springs can be spun if I take weight off and grab with my hand with a little force. Have about 2 inches of thread below spanner nuts. Limit stap is on longed length hole. I'm a newbie, sorry
 
Picasso, do you still have the stock carbides on the skis? If so...how many miles are on the carbides? The stock carbides are known to wear out very fast. I'd check your carbides first to see if they are worn out/gone.
 
MCApex44 said:
Picasso, do you still have the stock carbides on the skis? If so...how many miles are on the carbides? The stock carbides are known to wear out very fast. I'd check your carbides first to see if they are worn out/gone.
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No they are good. Sleds are brand new 100 miles on them both. The trails are not icy, it groomed with a few inches s of fresh on top also,yo can feel the skis pushing soft snow and just sliding. That's with my 190 lbs butt leaning hard. Lol!
 
My stock carbides were gone in the first 45 miles.went with 6 in shapers on inside and outside a lot !!!!! Better now
 
ViperJim34 said:
My stock carbides were gone in the first 45 miles.went with 6 in shapers on inside and outside a lot !!!!! Better now
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Theses sleds went from dealer into my trailer, out of trailer and took off in Munising and handled really bad right off the getgo. Checked the carbides they are fine. The trails here are anything but icey. It's a spring preload problem or limiter strap issue I believe. Just not sure which way to go
 
picasso said:
Theses sleds went from dealer into my trailer, out of trailer and took off in Munising and handled really bad right off the getgo. Checked the carbides they are fine. The trails here are anything but icey. It's a spring preload problem or limiter strap issue I believe. Just not sure which way to go
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I would try pulling up the front strap 1 hole from stock. Also, many are taking some pressure off the front track shock. I did about 1/4 in, many did much more.
 
sk-rx1 said:
I would try pulling up the front strap 1 hole from stock. Also, many are taking some pressure off the front track shock. I did about 1/4 in, many did much more.
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I will try the limiter strap first. You don't think the front shocks need anything?
 
Adjust you coupling block first. Put it on 2. If still uncomfortable go 3. Stock is 1. When you turn the block make sure you fully compress rear suspension so the blocks are correctly positioned. In my case on a stocker its a 2 man job.
 
cannondale27 said:
Adjust you coupling block first. Put it on 2. If still uncomfortable go 3. Stock is 1. When you turn the block make sure you fully compress rear suspension so the blocks are correctly positioned. In my case on a stocker its a 2 man job.
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Is this the triangle block on both sides that adjust the rear preload? The one you turn with the spark plug wrench?
 
No. It is the square block at back lower. look closely it is numbered. Two 1's ,2,3 . Bigger the number= smaller gap between scissors and block. Smaller gap =less ski lift and less push. You absolutely need to plant the front end in corners to turn. This is best you can do without affecting travel and its free.
 
picasso said:
I have 2 vipers that I have issues with. In corners on nicely groomed trails they both just slide like they are on ice. Takes a lot of force also. They also wander all over the trail just cruising along 35- 45 mph. Not sure what to adjust. Front springs can be spun if I take weight off and grab with my hand with a little force. Have about 2 inches of thread below spanner nuts. Limit stap is on longed length hole. I'm a newbie, sorry
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I have the same issue with my sled,I have tried this and it works for me. 2preload.jpg try this setting on the front track shock and the ski shock.
 
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Finally got a chance to go out after adjusting things. From stock I tightened limit strap 1 hole, front track shock is loosened so I can just turn the spring with little force when suspension is hanging. Rear coupler block is on 2 , and torsion block is on 2. Also put 6" shaper on inside and moved stock 4 " carbides to outside.

Sled turns very nice on the really tight stuff, but the inside ski tends to want to lift. Also on choppy long sweeping curves the sled feels just a little tippy. Any suggestions or am I expecting too much. I must say the sled is much much better, not near the push problems and not a ton of effort to steer. Also no darting now
 
I am set up close to your settings. I found that doing into a turn hard I need to be up on the tank and weight to the inside. The sled pivots quickly in this position and I can keep the inside ski down with my weight on the inside up front, once I get the sled around and pointed in the new direction I transfer weight back on seat and that helps the back end hook up. I also weigh 190lbs. I don't have the bars changed yet but that's my next step. I did put Skinz pads on for my knees when I get forward with my weight and that REALLY helps. I am amazed at how quick I can get the sled to pivot with my weight up front hugging the tanks, with a little brake into the turn and throttling that back end around and sitting back heading out. Practice in and open area a few times and you be surprise how well you can turn the sled but you have to use the throttle to plant the skis and slightly slide the back around. That's what's working for me. I really need to do the bars now to get dialed in, but I ran pretty good with a Cat 800 last night and he has dual 8" bars and studs. I am going to stud for next season.

Look forward to hearing any success you are having, I'm really starting to like this sled now that it's getting dialed in.
 
rebmo said:
I am set up close to your settings. I found that doing into a turn hard I need to be up on the tank and weight to the inside. The sled pivots quickly in this position and I can keep the inside ski down with my weight on the inside up front, once I get the sled around and pointed in the new direction I transfer weight back on seat and that helps the back end hook up. I also weigh 190lbs. I don't have the bars changed yet but that's my next step. I did put Skinz pads on for my knees when I get forward with my weight and that REALLY helps. I am amazed at how quick I can get the sled to pivot with my weight up front hugging the tanks, with a little brake into the turn and throttling that back end around and sitting back heading out. Practice in and open area a few times and you be surprise how well you can turn the sled but you have to use the throttle to plant the skis and slightly slide the back around. That's what's working for me. I really need to do the bars now to get dialed in, but I ran pretty good with a Cat 800 last night and he has dual 8" bars and studs. I am going to stud for next season.

Look forward to hearing any success you are having, I'm really starting to like this sled now that it's getting dialed in.
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I'm 190 lbs also, and yes I agree with sitting up by the tank. It corners best if I can get the backend to slide a bit. I'm fairly happy with things. I definitely am using all 190 lbs to lean with, still wish the sled wasn't so tippy. Lol
 
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