Rear shock question on 09 RTX se

[KHEXX]

After tearing into the sled last night I found something that I have a question on. First of all let me say that I am running with stock settings on my shocks in the rear. My torsion is on the M setting. My question is: When I push down on the rear bumper of my sled, it sags down with no rebound. I then have to pull up on it to get it back to the highest position. Last year I attributed this to snow build-up when out on the trails. Am I missing something?

 

[bjowett]

Probably a combo of the SE light rate torsion springs (possibly worn), some drag on the rear shock seal, and fiction in the all the rear pivots.

 

[KHEXX]

Probably a combo of the SE light rate torsion springs (possibly worn), some drag on the rear shock seal, and fiction in the all the rear pivots.

I only have 800 miles on the sled!!!!!????

 

[sleddingfarmer]

Suspensions are designed to have a little bit of sag.

 

[KHEXX]

Suspensions are designed to have a little bit of sag.

Farmer, I was wondering about that myself. Doesn't that seem like a lot of sag? I am a 220 pound rider without gear! I have never bottomed out the sled (last year riding i was 260 without gear), and am happy with the overall ride! I have run it with the torsion on heavy and it doesnt seem to change it....Maybe I am reading into it too much?

 

[sly23]

I had the same question and ended up having my dealer check the rear shocks. Everything was fine. They just greased everything up really well which gave me a little bit more rebound, but it still sags. Once on the trails everything should feel normal

 

[rocketeer]

What about center shock, front shocks and limiter straps?
If your straps are tight and you have a lot of pressure on the front shocks, it will put more load on the back of the snowmobile. Even worse if the center shock spring dont have enough preload.
Rear springs confiuration does not give much force to keep the rear end high on that snowmobile.
I dont think there is a problem other than an ajustement issue.

 

[sleddingfarmer]

Suspensions are designed to have a little bit of sag.

Farmer, I was wondering about that myself. Doesn't that seem like a lot of sag? I am a 220 pound rider without gear! I have never bottomed out the sled (last year riding i was 260 without gear), and am happy with the overall ride! I have run it with the torsion on heavy and it doesnt seem to change it....Maybe I am reading into it too much?

Yeah I think you are just anxious for snow, and worrying about it too much.

The sag you see is mostly just the rear arm on the suspension moving back and forth between the coupler blocks. Or that was the case with mine.

I am 230 lbs, no gear. I rode with the torsion springs on the softest settings most of the time. It would bottom out when I rode real hard or hit big holes, but I like using all of my suspension travel. If I was going ditch banging, I would turn it all stiffer for the day.

 

[dirkdiggler]

After tearing into the sled last night I found something that I have a question on. First of all let me say that I am running with stock settings on my shocks in the rear. My torsion is on the M setting. My question is: When I push down on the rear bumper of my sled, it sags down with no rebound. I then have to pull up on it to get it back to the highest position. Last year I attributed this to snow build-up when out on the trails. Am I missing something?

Is the sled still a 121? I know after I went 136 mine would do the same thing

 

[bjowett]

I only have 800 miles on the sled!!!!!????

Life for seals and movable parts in a snowmobile skid is brutal. You'd be surprised how much friction all those points create when added together. Lube everything up, maybe spray a little light oil on the rear shock shaft. Check the adjustments as mentioned above. See if it rebounds a little better.

 

[KHEXX]

After tearing into the sled last night I found something that I have a question on. First of all let me say that I am running with stock settings on my shocks in the rear. My torsion is on the M setting. My question is: When I push down on the rear bumper of my sled, it sags down with no rebound. I then have to pull up on it to get it back to the highest position. Last year I attributed this to snow build-up when out on the trails. Am I missing something?

Is the sled still a 121? I know after I went 136 mine would do the same thing

yeah still a 121"

 

[KHEXX]

I only have 800 miles on the sled!!!!!????

Life for seals and movable parts in a snowmobile skid is brutal. You'd be surprised how much friction all those points create when added together. Lube everything up, maybe spray a little light oil on the rear shock shaft. Check the adjustments as mentioned above. See if it rebounds a little better.

Thats exactly what the local mechanic told me, lube up the pivot points real good and go from there.....will do it tomorrow...

 

[1049triple]

I had the same question than you last year, so i asked a member here that own an SE (I even sent him a video of what the suspension was doing) and he told me my sled was like his and it was good.
Lubing everything is a good idea as it will lubricate and prevent corrosion on any part in the skid of your sled, making parts to move more easily, but you will surely have the same sag.
Just look at your sled when you come from a ride and let the sled alone for a moment, the rear come back to his highest level by itself.

 

[stopdropanroll]

You could try HyGear's torsion spring spacers, my XTX did this same thing untill I installed the spacers.

 

[KHEXX]

You could try HyGear's torsion spring spacers, my XTX did this same thing untill I installed the spacers.

I greed the pivots all up and it seems much better, still doesn't rise back to full height but comes back some nonetheless. Gonna ride it this year and see how it does. Every sled like mine that I have seen does the same thing.....I guess I am way less concerned.....