Shocks or springs question

[skippy]

I have a 2007 IQ RMK and noticed that the rear suspension was sagging pretty low today. How do you tell if the springs are weak and need to be replaced or if the shock needs to be rebuilt? I can take the preload off the rear and it will stay up but I can push it down 3 to 4" with very little force(one finger) before the shock starts to take over. To me it seems like the springs are weak! What's the best way to test that the shock is working right? Rear shock is Fox zero pros that was rebuilt about 500 miles or so ago.. Thanks

 

[rmk2112]

Replace your torsion springs, You probably have .359/90
Take them off and put in .359/47
I did this and am running it on the soft setting and I have zero sag now, great ride height and great ride.
You might need to let your straps out too.

Great info here: http://www.snowestonline.com/forum/showthread.php?t=193368

 

[skippy]

Replace your torsion spring, You probably have a .359/90
Take it off and put a .359/47
I did this and am running it on the soft setting and I have zero sag now, great ride height and great ride.
You might need to let your straps out too.

Great info here: http://www.snowestonline.com/forum/showthread.php?t=193368

Will do! Thanks a lot!

 

[skibreeze]

The 4" sag is Polaris spec.

 

[MARV1]

Too much sag sucks in the powder. Get the .375's or .405's if you are a big guy. .359's are way to small and sack out in no time.

 

[MORSNO]

Replace your torsion springs, You probably have .359/90
Take them off and put in .359/47
I did this and am running it on the soft setting and I have zero sag now, great ride height and great ride.
You might need to let your straps out too.

Great info here: http://www.snowestonline.com/forum/showthread.php?t=193368

I think you mean .375/47 as the recommended springs. The first number is the diameter of the spring, the second number is the degree of bend in the spring.

If I'm not mistaken the next heavier springs are .375/77 (7041943-067 7041942-067) and .375/47 (7042079-067 and 7042080-067), and then .405/77 (7041940-067 7041941-67) which are for the 2-up sleds.

 

[skippy]

Will part #'s 7042081-067 and 7042082 work better then stock? They are .347 -47 degree. It's the only ones I could find in stock around here, we are leaving for Wyoming on Tuesday morning so shipping would be to tight.. Thanks

 

[skippy]

Never mind, I just found some .375-77 rate springs for now!! Later

 

[odoggak]

I just put the .375 springs from polaris on and it still sags. Had the same problem, put my hand on the sled and it would creep down 4 in. Had the adjuster blocks maxed out for part of a ride and was way to bouncy. Put them on the lower setting and the ride was better. Think I gained with the new springs, but want my sled to sit proud. When I get off my 02 800 rmk it pops right up. Not sure what the deal is.

 

[MORSNO]

I just put the .375 springs from polaris on and it still sags. Had the same problem, put my hand on the sled and it would creep down 4 in. Had the adjuster blocks maxed out for part of a ride and was way to bouncy. Put them on the lower setting and the ride was better. Think I gained with the new springs, but want my sled to sit proud. When I get off my 02 800 rmk it pops right up. Not sure what the deal is.

Did you get the 77 or 47 degree springs? I have the 77 degree ones and still have some sag, but it rides nice. If I was to buy springs again I would go with the 47 degree set. From what I've read they sit up firmer without as much sag and the spring is more progressive as it takes a load. I weight 230 dry so I don't think the sled will ride like a pogostick when loaded up.

 

[odoggak]

I believe I got the 77 deg springs. I did not see the option for the 47 deg springs. Does Polaris give you that option or do you go with another brand? I only weigh 170 dry and blocks maxed out on the trail bounced me all over

 

[rmk2112]

I think you mean .375/47 as the recommended springs. The first number is the diameter of the spring, the second number is the degree of bend in the spring.

If I'm not mistaken the next heavier springs are .375/77 (7041943-067 7041942-067) and .375/47 (7042079-067 and 7042080-067), and then .405/77 (7041940-067 7041941-67) which are for the 2-up sleds.

Nope, I didn't mean .375/47. I'm 205 fully dressed for riding. I dont need the "fatboy" spring, just updating to the .359/47 from the .359/90 was all I wanted/needed. The .375 would have made for a ride that was too stiff for me. Its overkill for someone my size