NewB rear suspension setup question - MC 900

i have the same machine all i did was set everything on the softest settings and cranked em up on the trail up until i was just shy of bottoming out seemed fine from there also set u p the limiter strap to itsshortest setting for powder let it out for whoops and bumps

i run the front strap as loose as i can, the front shock on the rear skid preload just a few cranks past the bottom just to keep the spring in place and the rear sping adj in the middle, check your track tension, make the track as loose as you can without ratcheting. if the track is too tight the rear skid can NOT do it's job!

^^^Exactly. If track is too tight you will be bottoming out on track stretch.. not shock stroke. I also moved the front swing arm to a flatter position by lowering front mount to the lowest hole on the tunnel. You have to drill it out but its there. Then moved the lower shock mount (on the rails) rearward approx an inch or so.. placing it above the rib that runs down the rails. Also flattening its angle as well.
(you will lose a little shock stroke mounting it this way..but not enough to matter.)
It still transfers weight as it should and man what a difference on the trail. Still not perfect by any means but its cheap to do!

Edit: I have HRP drop brackets on the rear. So you will most likely need these if you do the swing arm relocation. www.holzracingproducts.com
Call them up and ask for drop brackets for a 1M.

If you do this correctly..the skid/track will sit flat on the shop floor.. tip to tail.

Also..premature Driver shaft Bearing Failure can result from the track tension issue. (if track is run too tight)

That was my fix anyway.

I'm about the same size as you are and have the SJ drop brackets on a 04 king. Limiters straps long, front skid shock screwed up with about 3/4" thread out the bottom. Rear skid on middle cam and track is pretty loose. My shocks were re-valved to work in a more progressive manner. Starting soft and getting firmer the more compressed they get. The ski shocks are set fairly light but with enough pressure to give some control on the trail. After that the best thing you can do to give a better ride is put a high seat on the sled and keep forward in the studder bumps.