Snowmobile Arctic Cat 2-Stroke (2007 year). Manual - part 123
9-5
9
ADJUSTING REAR ARM COUPLER
(Groove Style)
NOTE: The couplers are installed in the 2-groove
position at production.
The rear arm coupler provides advantages over the
standard suspension.
First, with the coupler system, ski lift under accelera-
tion is greatly reduced which provides improved han-
dling. Second, when riding through rough terrain, the
rear suspension arm receives some needed assistance
from the front arm shock and spring. This happens as
the rear arm is fully collapsed and locked up by the
coupler blocks. The front arm then starts to collapse
the shocks and spring which assist the rear springs.
The result is a smoother ride for the operator.
Each of the coupler blocks has four positions (notched
grooves on the outside surface of the block). When
changing the block position, change both to the same
groove number. To make coupler adjustment, follow
the procedure below.
1. Using a 9/16-in. wrench, loosen the two cap
screws that secure the coupler blocks to the inside
of the suspension rails.
2. Rotate the coupler blocks to the desired position
making sure both are set the same.
738-230B
NOTE: When setting the block, the chosen groove
position must be directed toward the idler arm.
738-230C
3. Place a 4-in. block of wood under the rear of the
suspension just in front of the rear idler wheels.
This will assist in collapsing the suspension.
4. Collapse the rear suspension until the rear arm is
firmly against the coupler blocks. This will align
the two blocks squarely with the arm. While in this
position, tighten the two cap screws securing the
blocks.
ADJUSTING REAR ARM COUPLER
(Number Style)
The rear arm coupler provides advantages over the
standard suspension.
First, with the coupler system, ski lift under acceleration
is greatly reduced which provides improved handling.
Second, when riding through rough terrain, the rear sus-
pension arm receives some needed assistance from the
front arm shock and spring. This happens as the rear
arm is fully collapsed and locked up by the coupler
blocks. The front arm then starts to collapse the shocks
and spring which assist the rear springs. The result is a
smoother ride for the operator.
If additional coupler action is desired, the coupler
blocks can be set to the number 2 or 3 position. Each
of the coupler blocks has three positions numbered on
the inside surface of the block. When changing the
block position, change both to the same number. To
make the coupler adjustment, follow the procedure
below.
1. Using an 8 mm Allen-wrench, loosen the two cap
screws that secure the coupler blocks to the inside
of the suspension rails.
2. Rotate the coupler blocks to the desired position
making sure both are set the same.
738-230A
3. Place a 4-in. block of wood under the rear of the
suspension just in front of the rear idler wheels.
This will assist in collapsing the suspension.
4. Collapse the rear suspension until the rear arm is
firmly against the coupler blocks. This will align
the two blocks squarely with the arm. While in this
position, tighten the two cap screws securely.