Snowmobile Arctic Cat (2006 year). Instruction - part 8

OPERATING INSTRUCTIONS



NOTE: On EFI models when the

engine is being started, DO NOT
C O M P R E S S T H E T H R OT T L E
CONTROL LEVER. If the throttle
control lever is compressed, the
engine will not start because the
fuel/air mixture will be too lean.

7. On manual start models, pull

the recoil handle slowly until

resistance is felt; then give a

short quick pull. Repeat until

the engine starts.



NOTE: On large-displacement

e n g i n e s i n e x t r e m e l y c o l d
weather, pull the recoil handle
slowly two to three times to begin
the starting procedure.



NOTE: On electric start models,

rotate the key to the START posi-
tion; then when the engine starts,
release the key.

8. On carbureted models when the

engine starts, allow it to warm

up for approximately 30 sec-

onds with the choke lever in the

full-choke position. After the

30-second warm-up, move the

choke lever to the middle posi-

tion. The choke lever should be

moved to the OFF position

when engine is warm. Slight

throttle control lever compres-

sion may be necessary after the

engine starts and during warm-

up. Idle the engine several min-

u t e s u n t i l t h e e n g i n e h a s

reached normal operating tem-

perature.

9. On EFI models when the engine

starts, allow it to warm up prop-

erly. Idle the engine several

minutes until the engine has

reached normal operating tem-

perature. Do not idle the engine

for excessively long periods of

time.

! CAUTION

To avoid damaging the recoil
starter, DO NOT pull the recoil
rope to its limit or release the
recoil handle from an extended
p o s i t i o n . A l l ow t h e ro p e t o
rewind slowly.

! CAUTION

Do not continuously run the
starter for more than 5 seconds
at a time.

! CAUTION

It is extremely important that the
engine is properly warmed up
before subjecting the engine to
high speed operation or heavy
loads. The engine should be
allowed to idle at least 3-4 min-
utes before it is operated at
m o r e t h a n 1 / 2 t h r o t t l e . I n
extremely cold conditions, the
warm-up time will be longer.
Cold seizure and piston scuffing
caused by insufficient warm-up
will not be covered by warranty.
Also, do not idle the engine for
excessively long periods of
time.

OPERATING INSTRUCTIONS

10. Flooding — On carbureted

models if the engine does not

start when the choke is being

used but seems ready to start,

move the choke lever to the

OFF position. Engage the brake

lever lock; then compress the

throttle control lever fully and

try to start the engine. When the

engine starts, release the throttle

control lever immediately. After

the warm-up, release the brake

lever lock.



NOTE: Continued choking will

cause the engine to flood more.

11. Flooding — On EFI models if

the engine does not start but

seems ready to start, engage the

brake lever lock; then compress

the throttle control lever fully

and try to start the engine.

When the engine starts, release

the throttle control lever imme-

diately. After the warm-up,

release the brake lever lock.



NOTE: If the engine fails to start

during the attempt with the throt-
tle control lever compressed,
remove the spark plugs and clean
and dry them thoroughly or install
a new set of properly gapped, rec-
ommended spark plugs.

12. To shut off the engine, turn the

ignition key to the OFF position

or push the emergency stop

switch to the DOWN position.



N OT E : O n 6 6 0 c c m o d e l s ,

ensure that the ignition switch
key is in the OFF position when
the engine is not running. Leav-
ing the ignition switch in the ON
position allows the lights to be on
and will drain power from the bat-
tery. The engine WILL NOT START
without battery power.

HIGH RPM OPERATION
(660 cc Models)

On a 660 cc model when the engine

speed returns to idle after a sustained

period of high RPM operation, the

idle RPM may be slightly higher

than usual for a brief period of time.

This higher RPM is a normal oil-

cooling function and should not be

of concern.

BRAKING (Hydraulic Brake
Models)

Operating a snowmobile with

hydraulic brakes is different from

o p e r a t i n g a s n o w m o b il e w i t h

mechanical brakes. The following

items are items that the operator

must be familiar with when operat-

ing this snowmobile and its hydrau-

l i c b r a k e s y s t e m . I m p o r t a n t

additional information on the proper

maintenance of the brake system is

found in the maintenance section of

this manual.

1. Use the brakes wisely. Each

time the brakes are applied in

all hydraulic brake systems

(including automotive applica-

tions), heat is transferred to the

brake fluid. The amount of heat

transferred during high speed

stops and/or repetitive use may

be high enough to boil the brake

fluid and cause the brakes to

either fade or may cause an

unexpected loss of brakes.

OPERATING INSTRUCTIONS

If this occurs, the brake fluid

requires a cool-down period

before the brakes will again

function properly. This cool-

down period will vary depend-

ing upon the ambient air tem-

perature and the temperature of

the brake fluid. If loss of brakes

has occurred because of high

fluid temperatures, do not oper-

ate the snowmobile until the

cool-down period has expired

and brake lever firmness has

returned.

2. Be sure to maintain the brake

fluid at the proper level and

take care not to get any mois-

ture in the system as moisture in

the brake fluid lowers the boil-

ing point. If the brake fluid is

ever boiled (by high speed stops

or repetitive use) or if moisture

is allowed to enter the system, it

must be changed. Never substi-

tute or mix different types or

grades of brake fluid.

3. Never ride the brake. Even

maintaining minimal pressure

on the brake lever will cause the

brake pads to drag on the disc

and may overheat the brake

fluid.

4. The brake lever lock is not a

parking brake and should not be

applied for periods exceeding 5

minutes. NEVER OPERATE

THE SNOWMOBILE WITH

THE BRAKE LEVER LOCK

ENGAGED.

5. Pumping the brake lever is per-

missible; however, if pumping

the brake lever more than twice

is necessary to obtain the neces-

sary stopping power, immedi-

ately take the snowmobile to an

authorized Arctic Cat Snowmo-

bile dealer for service. If not

under warranty, this service is at

the discretion and expense of

the snowmobile owner.

! WARNING

Excessive repetitive use of the
hydraulic brake for high speed
stops will cause overheating of
the brake fluid and premature
brake pad wear which will result
in an unexpected loss of brakes.

! WARNING

Use only Arctic Cat approved
brake fluid. Never substitute or
mix different types or grades of
b r a k e f l u i d . B r a k e l o s s c a n
result. Check brake fluid level
and pad wear before each use.
Brake loss can result in severe
injury or even death.

! WARNING

The brake lever lock is not a
parking brake and should not be
applied for periods exceeding 5
minutes. The brake lever lock
maintains the brake lever in the
compressed position and main-
tains pressure against the brake
disc; however, after a period of
time, the pressure applied to the
brake disc may relax below the
amount required to hold the
snowmobile stationary.

OPERATING INSTRUCTIONS

6. When new brake pads are

installed, a “burnishing” pro-

cess is required. Drive the

snowmobile slowly and com-

press the brake lever several

times until the pads just start to

heat up; then allow them to

thoroughly cool down. This

process stabilizes the pad mate-

rial and extends the life of the

pads.

EMERGENCY STOPPING

There are several methods of stop-

ping or slowing the snowmobile

under a variety of situations. Identi-

fied in the following chart are the

ways a snowmobile may be brought

to a stop and the effectiveness under

normal conditions.



N OT E : O n 6 6 0 c c m o d e l s ,

THROTTLE/IGNITION MONITOR
SWITCH (2-Stroke Models)

The throttle control is equipped with

a monitor switch for safety purposes

which will stop the engine when a

loss of return spring force occurs. If

ice forms in the throttle system or if

there is some other malfunction of

the throttle system resulting in a loss

of return spring force, the monitor

switch will stop the engine when the

throttle control lever is released.

If the snowmobile engine stops

abruptly when the throttle control

lever is released and the activation

of the monitor switch is suspected,

use the following procedure:

1. Rotate the ignition key to the

OFF position.

2. Remove ice and snow from the

throttle system and wait 5-10

minutes for the engine heat to

thaw ice from the throttle sys-

tem.

3. Test the throttle control lever by

compressing and releasing it

several times. The lever MUST

return to the idle position

quickly and completely.

ITEM

FUNCTION

CONDITION

Emergency

Stop Switch

interrupts

ignition circuit

ALL

Throttle/

Ignition

Monitor

Switch

interrupts

ignition circuit

ALL

Ignition

Switch

interrupts

ignition circuit

ALL

Brake

slows the

driven shaft/

ACT drive

ALL

Choke

(carbureted

models)

floods the

engine

1/2 throttle or

less

! WARNING

If any malfunction of the throttle
system occurs (such as freezing
in fluffy snow) and the monitor
switch does not shut off the
e n g i n e , p r e s s d ow n o n t h e
emergency stop switch IMMEDI-
ATELY to stop the engine. DO
NOT start the engine until the
malfunction in the throttle sys-
tem has been located and cor-
rected.

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