Rear suspension issues.....need help!

[MNSnowScooter]

Having some serious issues I cannot figure out. Reaching out for a little help/advice....

So over the summer I extended my skid to a 136" while it was out I went through the skid. New bushings, greased everything, had both shocks rebuilt.

First issue I ran into was my front skid shock was completely junk. the shaft had broken last year somehow....anyways a friend of mine sold me his old fox zero pro, sweet put a spring on it and put it in.
After that the skid went in. Had some issues but I got it in there get it all back together put it back on the ground and stand on it and it bottoms out right away....I was like what the f???
So I sun my torsion spring blocks to h and it doesn't bottom out now but it doesn't rebound. I have to pull the rear end up to get the shocks to sit back at normal height.

So I searched on this forum and a couple others and adjusted the suspension per Yamaha's instructions. And still does the same thing..... I'm puzzled on what to do next.... Any advice would be helpful!!

 

[nitris223]

I would get your rear shock checked again. Was it rebuilt by someone who really knows what they are doing with shocks. Also the suspension won't react the same on a concrete floor as it will on snow. It should rebound most of the way on a concrete floor but maybe not all the way with the torsion springs. I would check and see if you maybe put something in backwards and it may be causing some binding. Torsion springs could also be weak.

I almost suspect your rear shock lost it's nitrogen charge and weak torsion springs. Pull the rear shock and see how hard it is to compress the shock by hand. It should not be easy and should extend from fully compressed by itself.

 

[fxnytrortxkid]

Out of curiosity was the fox shock from a nytro? Also was it to rebuilt? If both shocks aren't valved as a package then it won't work right. Also I've heard most fox shocks leak oil and nitrogen more than most any other brand. I haven't had them other than the floats I am replacing so I can't compare them

 

[MNSnowScooter]

Out of curiosity was the fox shock from a nytro? Also was it to rebuilt? If both shocks aren't valved as a package then it won't work right. Also I've heard most fox shocks leak oil and nitrogen more than most any other brand. I haven't had them other than the floats I am replacing so I can't compare them

The fox shock was not from a nytro. It was rebuilt by the same guy who did my rear shock, and is the same guy who has rebuilt many shocks for me over the years.

 

[canoehead]

Make sure the shock eye to eye length is right. Too short of a shock will screw it up.

 

[MNSnowScooter]

Make sure the shock eye to eye length is right. Too short of a shock will screw it up.

We measured the shocks a couple of times and they were almost identical in length..... I just went out and bounced the sled a few times after I regreased everything and I can see some green fluid in the rear shock shaft. Which to me means the seal is out of the rear shock.

 

[fxnytrortxkid]

You sure it's oil or is it their assembly grease/lube? You said it was just rebuilt

 

[bmazbnytro]

I rebuild and service shocks, went to school for it. I have never seen green shock or fork fluid, not saying someone doesn't make it, sounds a little fishy. Did the guy revalve the shock to match the nitro specs? Rebuilding and servicing a shock is totally then revalving. I suspect something is put back together wrong or the rear shock is not charged with nitrogen. I would start by pulling the rear skid again.