Snowmobile Arctic Cat (2009 year). Manual - part 8

GENERAL INFORMATION

25

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-tapping

screw into the right side of the seat

support assembly.

To adjust the seat, use the following

procedure:

1. Remove the rear seat.

2. Pull up on the operator seat

adjuster.

0742-592

3. Lift up on the back of the seat;

then move the front of the seat up

or down into one of the seven

available positions.

4. Press down on the rear of the seat;

then secure the seat by releasing

the seat adjuster.

5. Install the rear seat.

REMOVABLE/

ADJUSTABLE SEAT

(F-Series/Z1 Models)

These snowmobiles are equipped with

a removable/adjustable seat. To adjust

the seat, use the following procedure:

1. Press in on the left-end of the seat

adjuster lever at the rear storage

compartment; then pull out on the

seat adjuster lever at the rear stor-

age compartment.

741-434A

2. Lift up on the back of the seat;

then move the front of the seat up

or down into one of the seven

available positions.

3. Press down on the rear of the seat;

then secure the seat by releasing
the seat adjuster lever.

To remove the seat, use the following

procedure:

! WARNING

Make sure the self-tapping screw
is securely tightened and the seat
is securely locked in place or per-
sonal injury may result.

! WARNING

Make sure the seats are securely
locked in place or personal injury
may result.

! CAUTION

Do not use the adjuster lever to lift
the seat.

! WARNING

Make sure the seat is securely
locked in place or personal injury
may result.

26

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-tapping

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 per-

formance throughout the RPM range. 

The system consists of an exhaust

valve assembly mounted to the exhaust

side of each cylinder and connected by

adjustable cables to an electronic 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 4639-348). Any substitute
may cause an APV malfunction.

GENERAL INFORMATION

27

739-152G

At high RPM, the exhaust valves are

raised. This creates a “high port”

exhaust design calibrated to provide

maximum performance at high RPM.

739-152H

 NOTE: The RPM ranges will vary
from model to model.

 NOTE: If the servomotor cycles
three times and then shuts down,
the exhaust valve cables are not
adjusted correctly. The exhaust
valves may also be sticking.

 NOTE: APV cleaning may be
done by the snowmobile owner if
qualified to do so. If the owner
does not feel qualified, take the
snowmobile to an authorized Arc-
tic Cat Snowmobile dealer for this
service. This service is at the dis-
cretion and expense of the snow-
mobile owner.

EXHAUST 

CONTROLLED TIMING 

(ECT) SYSTEM (600/

800/1000 cc Models)

This system automatically adjusts the

ignition timing to provide maximum

performance through a variety of oper-

ating conditions. The ECU receives

input on engine RPM (demand) and

exhaust pipe temperature (engine con-

dition) and adjusts the ignition timing

accordingly. This system is not adjust-

able and is maintenance free. 

If a system fault is suspected, use an

ohmmeter to check continuity of the

exhaust pipe temperature sensor

located in the expansion chamber. A

reading of either 0 ohm or infinity indi-

cates a failed sensor. 

0737-314

 NOTE: A disabled ECT system
WILL NOT cause engine damage;
however, a failed ECT system will
have slower throttle response and
may produce slightly less top-end
performance. 

28

OPERATING INSTRUCTIONS

OPERATING INSTRUCTIONS

STARTING AND 

STOPPING ENGINE

It is imperative that the brake system

be checked for wear and proper opera-

tion and that all safety checks found in

the accompanying Snowmobile Safety

Handbook be performed before

attempting to start the engine. 

Also, on

carbureted models, be sure the cor-

rect carburetor main jets for the

operating temperature, altitude,

and gasoline are being used.

 After

the engine has been started, check the

headlights (high and low beam), tail-

light, and brakelight to be sure they are

working properly and adjusted cor-

rectly. Make sure all lights are clean to

provide maximum illumination. The

headlight and taillight must be clean

and must be illuminated whenever the

engine is running.

 NOTE: If equipped with reverse
shift lever, make sure the lever is
in the forward position before
starting the engine.

1. Test the operation of the brake sys-

tem by compressing the brake

lever. The brake lever must feel

firm when compressed; then while

holding the brake lever in the com-

pressed position, measure the dis-

tance between the brake lever and

the handlebar. The distance must

be greater than 2.54 cm (1 in.).

741-328C

2. Check the fluid level in the reser-

voir. The brake fluid level must be

visible in the sight glass. Add Arc-

tic Cat approved brake fluid as

necessary.

741-328A

 NOTE: If the sight glass appears
dark, there is a sufficient amount
of fluid in the reservoir.

3. Test the throttle control lever by

completely compressing and

releasing it several times. The

lever MUST return to the idle

position quickly and completely.

4. Move the emergency stop switch

to the UP or RUN position.

5. Insert key into ignition switch;

then rotate key to the RUN posi-

tion.

! WARNING

Do not start the engine if the brake
system is not functioning properly.
Service the brake system or have it
properly repaired prior to operat-
ing the snowmobile. Serious per-
sonal injury or even death may
occur if the brake system is not
operating properly.

! CAUTION

On liquid cooled models, always
check the coolant level before
starting the engine.