Bottoming my skid

mtotguy

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Location
Montague, Michigan
Country
USA
Snowmobile
2016 Rush 800, 2014 Viper RTX, 1983 Excel 3
I have a 2011 RTX. I bottom the skid easily. At the same time it's not very plush over the studder bumps. I got inside the center shock last night thinking I could do something with the valving. However it turns out there's already a lot of compression damping in there. I really can't make it much stiffer and anything I do will further degrade the low speed damping. I was considering going to a stiffer spring and lighter valving but it doesn't appear that Yamaha offers another spring for the center shock. Anybody been down this road?
 
Everybody has been down this road my friend. Without revalving there's a few things you can do. I'll tell you how I'm set up and you can go from there (I'm 180 lbs without gear). My fronts are soft, very soft. I have them just tight enough that it will bottom once in a while. If you are not bottoming your suspension, you are not using it all. Next, the front spring in the rear skid is set to max loose. Limiter strap on the second hole. Rear springs are on soft, and dampening in rear shock set 1/2 way. This may sound counter - intuitive but its the way to go. Set up everything as soft as possible and then start making adjustments from there. I find by moving my foot position on the running boards you can transfer weight to different parts of the skid. Anyways, hope this helps.
 
The rear shock is what needs to be valved since the rear and center are working linked with the rear doing most of the job.
 
I had my stock shocks re-valved, added a 200# dual rate spring to the front one, blocks set on med, shocks pretty much on the lowest setting.
I weigh close to 280 lbs and have only bottomed it out once on a huge mogul landing sorta "outta control". It rides great for me....
 
Revalved both shocks in the skid and it did wonders for my sled.
 


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