32
GENERAL INFORMATION
1. Adjust the seat to the lowest posi-
tion; then while lifting on the top
forward part of the seat, remove
the self-tapping screw from the
right side of the seat support
assembly.
741-718A
2. Press in on the left-end of the seat
adjuster lever at the rear storage
compartment; then pull out on the
seat adjuster lever.
3. Lift on the back of the seat and
move it forward and upward to
remove it from the chassis.
To install the seat, use the following
procedure:
1. With the seat adjuster lever pulled
out, slide the front of the seat into
position on the chassis; then with
seat position selected, lower the
rear of the seat onto the rear stor-
age compartment.
2. Press down on the rear of the seat;
then secure the seat by releasing
the seat adjuster lever.
3. With the seat adjusted to the low-
est position, install the self-tap-
ping screw into the right side of
the seat support assembly.
ARCTIC POWER
VALVE (APV) SYSTEM
This RPM controlled servomotor
(servo) actuated system adjusts the
size of the exhaust ports to provide
peak performance throughout the
RPM range.
The system consists of an exhaust
valve assembly mounted to the
exhaust side of each cylinder and con-
nected by adjustable cables to an elec-
tronic servo mounted beneath the
hood.
NOTE: The mounting location of
the servo will vary from model to
model.
739-152F
At low RPM, the exhaust valves are
held in the DOWN position by return
springs. This gives the engine a “low
port” exhaust design calibrated to pro-
vide maximum low RPM power and
improve fuel economy at trail speeds.
! CAUTION
Do not use the adjuster lever to
lift the seat.
! WARNING
Make sure the self-tapping screw
is securely tightened and the seat
is securely locked in place or per-
sonal injury may result.
! CAUTION
The correct engine oil to use is
Arctic Cat Synthetic APV 2-Cycle
Oil (p/n 4639-349). Any substitute
may cause an APV malfunction.
