Snowmobile Polaris 2006 - 2007 FS / FST. Manual - part 55
10.21
Rear Suspension
10
Rev. 1 07/2006
*=Optional rear track middle spring retainer available. See
Optional Retainer Table
M-10 FRA INITIAL SET UP REFERENCE
Adjusting the FRA will have the MOST effect on the rear
suspension performance. To adjust the FRA:.
1.
Refer to the initial set-up reference chart (see Table and
Table ) to determine the desired FRA position.
2.
To adjust, loosen the hex bolts (A) attaching the rear lower
shock cross shaft to the rail beam.
3.
Using a 9/16" wrench, loosen the jam nuts (B) on the
preload bolts.
4.
Adjust the preload bolts (C) to the desired FRA position.
5.
Tighten the jam nuts.
NOTE: Make sure the preload bolt contacts the slide
block before tightening the jam nut.
6.
Tighten the hex bolts and torque to 35 ft. lbs. (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 re-adjustment.
M-10 REAR SPRING PRELOAD
If FRA position alone does not allow the setup of the proper
amount of sag, the center retainer of the rear track shock can be
replaced with optional retainers to adjust the preload and change
the sag.
NOTE: Whenever ordering any of the retainers listed
in the chart, always order the retainer insert as well.
The insert is not removable once installed, so a new
insert is needed when installing a new retainer.
M-10 SKI PRESSURE
Ski pressure is set at the factory to
deliver the optimum balance between
ride and handling. If a rider prefers
more ski pressure for improved
steering performance, adjustments can
be made to the front limiter strap and
front arm mount.
1.
Determine if the rider prefers
comfort or control. Lean toward
the #4 setting for comfort and
toward the #3 setting for
aggressive riding.
2.
For full hole adjustments, remove the 5/16" nut and flat
washers from the lower attachments of the limiter straps
and relocate the straps to the desired position (i.e. move
from position 4 to 3). Replace the nut and washer. Tighten
securely.
3.
For half-hole increments (such as 3/4), the limiter straps
have slots at the upper pinch bolt. These slots allow the
bolts to be loosened (rather than removed) for half-step
adjustments. Re-tighten the pinch bolts.
4.
There are also two front arm mounting holes in the slide rail
that can adjust ski pressure. The lower hole (A) increases
ski pressure while the upper hole (B) decreases ski pressure.
M-10 136
Rider weight with gear
(lbs.)
Suggested FRA Range
(Lower number is softer)
Under 100*
1 to 1 1/2
100-150*
1 1/2 to 2
150-200*
2 to 2 1/2
200-250
2 1/2 to 3
250-300
3 to 3 1/2
300-350
3 1/2 to 4
Over 350
4 to 5
A
B
C
Optional Retainers
Retainer insert
Part Number
Retainer part
Number
Preload
Sag
5436109
5135077 (std.
on M10/128)
Least
Most
5134923
Middle
Middle
5135080 (std.
on M10/136)
Most Least
1
4
2
3
2
3
4