2007-2011 Polaris IQ Snowmobiles Service Manual, Page 394Get this manual
Steering and Suspensions M-10 ADJUSTMENTS
The primary adjustment on the M-10 suspension is the Full Range Adjustment (FRA)Adjusting the FRA will have the MOST effect on rear suspension performancePolaris recommends that you allow between 25 to 200 miles for the suspension to break in before performing any adjustments to the suspension
M-10 FRA INITIAL SET UP REFERENCE
Rider weight with gear (lbs
Under 100 100-150 150-200 200-250 250-300 300-350 Over 350
Suggested FRA Range (Lower number is softer)
1 to 12 12 to to 12 12 to to 12 12 to to 5
Adjusting the FRA will have the MOST effect on the rear suspension performanceTo adjust the FRA:1Refer to the initial set-up reference chart (see Table and Tableto determine the desired FRA position2To adjust, loosen the hex bolts (A) attaching the rear lower shock cross shaft to the rail beam3Using 916" wrench, loosen the jam nuts (B) on the preload bolts4Adjust the preload bolts (C) to the desired FRA position5Tighten the jam nutsNOTE: Make sure the preload bolt contacts the slide block before tightening the jam nut6Tighten the hex bolts and torque to 35 ftlbs(47 Nm) NOTE: When the M-10 suspension is new, it will take 25 to 200 miles (40-300 km) to properly break in the springs and shocks, at which time the suspension will be softer and may require FRA adjustment