This is for LTX or 121" also. This is the same setup I use on my '06 Apex GT (121") save for the ability to adjust the shock electrically vs manually.
Depending on everyone's given weight & trail condition different settings may be needed on the remote dial on the tunnel. PLEASE realize this. But start here...
1. Front shocks-- pre-load measurement of 1 7/8" collar to collar
2. Front shocks-- compression. clicker dial is 3 clicks in from full soft. In other words, turn it in counterclockwise 'till it stops, & then in 3 clicks
3. Front shocks-- rebound. clicker dial is 3 clicks in from full fast rebound. In other words, turn it counterclockwise 'til it stops, & then 3 clicks in.
4. Rear Mono-Shock pre-load-- Leave it in the stock cam notch. This should be the middle notch.
5. Rear transfer rod-- Turn the transfer rod IN to a measurement of 1 1/8"
6. Rear Mono-Shock rebound-- 3 clicks from full soft, according to the dial on the tunnel. In other words, turn it all the way to full soft & then 3 clicks toward hard. NOTE: the compression feel will also change as the rebound is set tighter for weight & trail conditions.
7. Some people have gone 1-2 notches tighter on the limiter strap. I personally have tried it & noticed no difference from the stock location.
REMINDER!! the rear setting can & will have to change some depending on your weight & trail conditions. This also will change the feel of the compression too.
On a side note also. As we all know the stock Yamaha skis suck major balls. Dually runners in the 6-10" range are highly recommended. As are Snow-Trackers if you choose that route.
ONE EDIT TO THIS SETUP: Whenever my wife rides the sled, I put the Mono-Shock preload to full soft. She said the middle setting was a little harsh for her. She's about 125 lbs with gear. I don't think many of us guys here are only a buck-thirty geared up, but be aware that a light rider may want the Mono set on soft.
Do this setup & you'll thank me, just as everyone else has.