BOMBARDIER ski-doo elan 250 1981 User manual

model
V.I.N.
purchase date _
warranty
expiry date
To be completed by dealer at time of sale
DEALER IMPRINT AREA
MOTO-SKI
FUTURA
SPIRIT
NUVIK
MIRAGE
SUPER SONIC
ULTRA SONIC
Text by:
Technical Publication
After Sales Service Department
Bombardier l.irnitee
Valcourt, Quebec
Canada, JOE2LO
The T,",lIr".,,~~ are trademarks of Bom-
bardier
BOMBARDIER EVEREST
SKI-DOO CITATION
ALPINE OLYMPIQUE
BLIZZARD
TNT
CARRY-BOOSE
ELAN
ELITE
GRAND PRIX SPECIAL

..11
boggie
..... .13
INDEX
THE 1981ULIMITED WARRANTY" . , .. .0 ••• 2
FOREWORD 0 0 ••••• 0 ••••••••• 0....................... .4
SAFETY IN MAINTENANCE .. 0 • 0 •• • ••••• 0 ••••••••••••••••••••••••••• 5
CONTROLS/INSTRUMENTS
Throttle lever, brake ignition/light switch, headlamp dimmer switch,
emergency
cut-out switch, manual starter handle, primer, tether
cut-out
switch. .. . ,... ,.... , , . . .. 0 ••• 6
BREAK-IN PERIOD
Break-in, inspection, inspection checklist 0. . . . . . 08
FUEL MIXING
Recommended recommended oil, fuel mixture ratio, fuel mixing pro-
cedure . . . . . . . . . . .
.. 0 •••••••••••••••• 0. 0 ••••• 0 •••••••••••••••••••• •10
PRE-START CHECK
Check points .
STARTING PROCEDURE
Starting procedure, emergency starting .. 0 0 ••• 0 ••••••• 0 •••• 0 ••••••••••• •12
LUBRICATION
Frequency, console removal, pulley guard removal, drive belt
wheel suspension, steering mechanism, chaincase oil, drive pulley
MAINTENANCE
Maintenance chart, spark plug, suspension, track, track tension and alignment,
carburetor, drive belt, mechanism, steering adjustment, engine
head nuts, engine
mount nuts, muffler attachment, general inspection, bulb re-
o ••••••••• '0' ., ••••• , •••••••••• 16
STORAGE
Track, suspension, ski assembly, controls, chaincase, drive pulley, fuel tank, car-
buretor, cylinder lubrication, chassis, inspection
..... 0 ••• 0 0 •• 020
PRE-SEASON PREPARATION
Pre-season preparation, chart, 0 0 ••• 0 • • • •••• 0 0 • • • • • • 0 023
TROUBLE SHOOTING .0 0 • • • • • • • • • • • 0 ••••••••• , • • • • o. .24
TOOLS
.. o. ••• • •• 0 ••• 0 0 , ••• , • 0 •• , ••••••••••••••••• 26
SPECIFICATIONS . . . . . . . . . . . . . . . . . . , . . . . .
o. • 0 0 •• •• 0 0 • • 0 • •• •27
WIRING DIAGRAM .... 0 ••• 0 • •• .,. ., •••••• 0 •• 0 • • • • • • • • • •• •••••• 28
SI
METRIC INFORMATION GUIDE 0 0 ••• 0 • • • • • • • • • • • • • • • 29
OFTEN ASKED QUESTIONS .. . . . 0
••• 0 0 ••• 0 0 ••• 0 •• •• • ••• •30
LISTING OF AREA DISTRIBUTORS.. . 0
•••••••••• 0 • • • • • • 32
HOW TO IDENTIFY YOUR SNOWMOBILE .0 •••••••••• 0 0 •• 0 •••••••••• •33
CHANGE OF ADDRESS OR OWNERSHIP .. . . 0 ••••••••••••••• , ••••••• 35

LIMITED WARRANTY 1981 SKI-DOO® SNOWMOBILES
1-PERIOD
BOMBARDIER Lirnitee as manufacturer, warrants FROM THE DATE OF FIRST
CONSUMER SALES, every
1981 Ski-Doo® snowmobile, sold as NEW AND UN-
USED, by an authorized Ski-Doo dealer,
for periods of:
• 12 months
for ELAN® , CIT ATION*, EVEREST®, ELlTE®, ALPINE®
models.
• 90 consecutive days
for BLiZZARD® 5500, 7500, 9500 models subject to the
following:
1. If delivery is made after the 31st day of March of a given year and before the 1st
day of December of the same year, the above 90 day warranty will start on De-
cember 1st.
2. If delivery is made
on/or after the 2nd day of January of a given year but before
the 31st day of March of the same year, all the unused portion of the 90 day pe-
riod will be carried over to the next winter and start again on the 1st day of
December of the sameyear.
2- WHAT BOMBARDIER WILL DO
BOMBARDIER will repair and/or replace, at its option, components defective in
material
and/or workmanship (under normal use and service,) with a genuine
BOMBARDIER component
without charge for parts or labour, at any authorized
Ski-Doodealer duringsaid warranty period.
3-CONDITION TO HAVE WARRANTY WORK PERFORMED
Present to the servicing dealer, the hard copy of the BOMBARDIER Customer Re-
gistration card received by the customer
from the selling dealer at time of pur-
chase.
4-WARRANTY TRANSFER
This warranty istransferable to subsequent ownertsl for remainder of warranty pe-
riod from original date of sale.
5-EXCLUSIONS - ARE NOT WARRANTED
• Normal wear on all items such as, but not limited to:
- drive belts
slider shoes
spark plugs
- breaker points
runners on skis
• A sulphated battery.
•Replacement parts
and/or accessories which are not genuine Bombardier parts
and/ or accessories.
• Damage resulting from installation of parts other than genuine BOMBARDIER
parts.
• Damage caused by failure to provide proper maintenance as detailed in the
Operator Manual. The labour, parts and lubricants costs of all maintenance ser-
vices, including tune-upsand adjustmentswill be charged to the owner.
2

• Vehicles used for racing purposes.
• All optional accessories installed on the vehicle.
(The normal warranty policy
for parts and accessories, if any, applies).
• Damage resulting from accident, fire or other casualty, misuse, abuse or ne-
glect.
• Damage resulting from modification to the snowmobile
not approved in writing
by BOMBARDIER.
• Losses incurred by the snowmobile owner other than parts and labour,
suchas, but
not limited to, transportation, towing, telephone calls,taxis, or
any other incidental or consequential damages.
Some states or provinces do not allow the exclusion or limitation of incidental or
consequential damages, so the above limitation or exclusion may not apply.
6-EXPRESSED OR IMPLIED WARRANTIES
This warranty gives you specific rights, and you may also have other legal
rights which may vary from state to state, or province to province. Where ap-
plicable this warranty is expressly in lieu of all other expressed or implied
warranties
of BOMBARDIER, its distributors and the selling dealer, including
any warranty of merchantability of fitness for any particular purpose; other-
wise the implied warranty is limited to the duration of this warranty.
However, some states or provinces do
not allow limitations on how long an
implied warranty lasts, so the above limitation may not apply.
Neither the distributor, the selling dealer, nor any other person has been
authorized to
make any affirmation, representation or warranty other than
those contained in this warranty, and if made, such affirmation, representa-
tion or warranty shall not be enforceable against BOMBARDIER or any other
person.
7· CONSUMER ASSISTANCE
If a servicing problem or other difficulty occurs, we suggest the following:
1. Try to resolve the problem at the dealership
with the Service Manager or
Owner.
2. If this fails, contact your area distributor listed in the Operator Manual.
3. Then if your grievance still remains unsolved, you may write to us:
BOMBARDIER L1MITEE
Customer Relations
Recreational Product Division
Valcourt, Quebec, Canada, JOE 2LO
BOMBARDIER LIMITEE RESERVES THE RIGHT TO MODIFY ITS WARRAN-
TY POLICY
AT ANY TIME, BEING UNDERSTOOD THAT SUCH MODIFICA-
TION WILL NOT ALTER THE WARRANTY CONDITIONS APPLICABLE TO
VEHICLES SOLD WHILE THE ABOVE
WARRANTY IS IN EFFECT.
October 1979
Bombardier Limitee
Valcourt, Quebec, Canada, JOE 2LO
®"Trademarks of Bombardier Limltee
3

FOREWORD
The operator manual and the Snow-
mobile Safety handbook have been
prepared to acquaint the owner Ioper-
ator of a new snowmobile
with the var-
ious vehicle controls, maintenance and
safe instructions. Each is in-
dispensable the proper use of the
product, and should be kept
with the
vehicle at all times.
Should you have any questions per-
taining to the warranty and its applica-
tion, please consult the
"Often Asked
Question" section of this manual, or
your selling dealer.
4
This manual uses the following sym-
bols.
A WARNING: Identifies and in-
Tstruction which, if not followed,
could cause personal injury.
... CAUTION: Denotes an instruc-
.... tion which, if not followed, could
severely damage vehicle components.
ONOTE: Indicates supplementary
information needed to fully
com-
an instruction.
Although the mere reading of such in-
formation does
not eliminate the haz-
ard, your understanding of the infor-
mation will promote its correct use.

SAFETY IN MAINTENANCE
Observe the following
precautions:
• Throttle mechanism should be
checked for free movement before
starting engine.
• Engine should be running only when
pulley guard is secured in place.
• Never run engine
without drive belt
installed. Running an unloaded en-
can prove to be dangerous.
• Never run the engine when the track
is raised
off the grou nd.
• It can be dangerous to run
with the cab removed.
• Gasoline is flammable and explosive
under certain conditions. Always
manipulate in a well ventilated area.
Do not smoke or allow open flames
or sparks in the vicinity. If gasoline
fumes are noticed while driving; the
cause should be determined and
corrected
without delay.
•Maintain your vehicle in top mecha-
nical condition at all times.
• Your snowmobile is
not designed to
be driven or operated on black
top;
bare earth, or other abrasive sur-
faces. On such surfaces abnormal
and excessive wear of critical parts
is inevitable.
•Installation of other than standard
equipment, including ski-spreaders,
bumpers, pack racks, etc.. could
SA\/AnAI\I affect the stability and safe-
ty of your vehicle. Avoid adding on
accessories that alter the basic vehi-
cle configuration.
• The snowmobile engine can be
stooced by activating the emergen-
cy
cut-out switch, tether switch or
by turning
off the key.
•Whenever the vehicle is parked out-
doors. overnight or
for a long
period, it is suggested to protect it
against the inclemency of the
weather
with asnowmobile cover.
• Do
not lubricate throttle and/or
brake cables and housings.
• Please read and understand all warn-
ings and cautions in this manual and
on the vehicle.
THIS MANUAL SHOULD REMAIN WITH THE VEHICLE AT THE
TIME OF RESALE.
5

CONTROLS IINSTRUMENTS
AJ Throttle Control Lever
B) Brake Control Lever
CJ Ignition / Light Switch
D) Head/amp
Dimmer Switch
EJ Emergencv Cut-Out Switch
FJ Decompressor
GJ Manual Starter Handle
HJ Primer
I) Tether Cut-Out
Switch
A) Throttle Control Lever
Located on the right side of the
handlebar. When compressed, it con-
trols the engine speed and the engage-
ment of the transmission. When re-
leased, engine speed returns auto-
matically to idle.
B) Brake Control Lever
Located on the left side of the handle-
bar. When compressed, the brake is
applied. When released, it automatical-
ly returns to its original position. Brak-
ing effect is proportionate to the pres-
sure applied on the lever.
6
C) Ignition ILight Switch
OFF
,.,.ON
Key operated, 2position switch. To
start the engine, first turn the key
clockwise to ON position. To stop the
engine, turn the key counter-clockwise
to 0 FF position.
The lights are automatically ON when-
ever the engine is running.
D) Headlamp Dimmer Switch
Located on left side of handlebar, flick
switch to high or
low beam.

E) Emergency Cut-Out Switch
A 3 position switch located on the right
side of the handlebar. To stop the en-
gine in an emergency
,flick the lever to
either upper or lower
"OFF" position.
To start engine, lever must be in mid-
dle
"ON" position.
The driver of this vehicle should
familiarize himself with the function of
this device by using it several times on
the first outing, thereby being mentally
prepared for emergency situations re-
quiring its use.
.... WARNING: If the switch has
~ been used in an emergency situa-
tion the source of malfunction should
be determined and corrected before re-
starting the engine.
f) Decompressor
Two position (OFF / ON), push-pull
knob. To engage, pull the decompres-
sor knob fully out.
.. CAUTION: The decompressor'
• provides easier starting by redu-
cing engine compression. However,
leaving the decompressor engaged
while running will damage yourengine.
Always disengage after the engine has
started.
0) Manual Starter Handle
Auto rewind type located on the right
hand side of vehicle. To engage
mechanism, pull handle.
H) Primer
Apush-pull button. Pull and push but-
ton (2-3 times) to activate primer. The
primer should always be used for cold
engine starts.
After engine is warm
however, it is not necessary to
use. pri-
mer when starting.
I) Tether Cut-Out Switch
Attach tether cord to wrist or other
convenient location then snap tether
cut-out cap over receptacle before
starting engine.
If emergency engine
"shut-off" is re-
quired completely pull cap from safety
switch and engine power will automati-
cally shut
"off'.
ONOTE: The cap must be installed
on the safety switch at all times in
order to operate the vehicle.
.... WARNING: If the switch is used
~ in an emergency situation the
source of malfunction should be de-
termined and corrected before restart-
ing engine.
Hood Opening
Unlock latches on both sides where the
hood meets the frame.
ONOTE: Always lift the hood gently
up until stopped by the restrain-
ing rope.
.... WARNING: It is dangerous to run
~ engine with hood opened, off or
unfastened. Personal injury could re-
sult.
ToolBox
Located under the hood. To gain ac-
cess, tilt the hood. Ideal location for
spare plugs, belt, rope, etc.
Fuel Gauge
The tank is translucent and fuel level
can be checked by opening hood and
glancing at tank.
.... WARNING: Never use a lit match
~ or open flame to check fuel level.
7

BREAK-IN PERIOD
With Bombardier-Rotax snowmobile
engines, abreak-in period is required
before
funning the vehicle at full throt-
tle. Engine manufacturer recomme-
dation is 10 to 15 hours. Dur-
ing
this period, aricher mixture is
needed (i.e. 40 parts
of gas for 1 part of
50/1
Bombardier oill. Maximum throt-
tle should not exceed 3/4, however,
brief full acceleration and speed varia-
tions contribute to a good break-in.
Continued wide open throttle accelera-
tions,
prolonged cruising speeds. and
lugging are detrimental durinq the
break-in period.
ONOTE: A
new drive belt
abreak-in period of 15-25 km (10-
15 miles)
8
10 Hour Inspection
As with any precision piece of mecha-
ical equipment, we suggest that after
the first 10 hours of or 30
days
after the purchase. whichever
comes that your vehicle be check-
ed by your This inspection will
give you
the opportunity to discuss the
unanswered questions you may have
encountered during the first hours of
operation. Remember that it is easier
to remedy at this
time than ~o allow .the
snowmobile to until apossible
failure occurs.
The 10 hour inspection is at the ex-
pense of the vehicle owner.

10·HOUR INSPECTION CHECKLIST
'"
Engine timing
Spark plug(s) condition
Carburetor adjustment
Engine head nuts
Engine
mount nuts
Muffler attachment
Chaincase oil level
Suspension components
Brake operation and lining condition
Ski alignment (runners condition)
Pulley alignment and drive belt condition
Track condition, tension and alignment
Lubricate (steering suspension)
Electrical wiring (loose connections, stripped wires, damaged insula-
tion). tightend all loose bolts, nuts and linkage
Operation of lighting system (HI / LO beam, brake light, etc.I, test
operation of emergency
cut-out switch and tether switch
We recommend that you have your dealer sign this inspection list.
Date of 10 hour inspection Dealer signature
9

FUEL MIXING
Oil must be added to the gasoline in
pre-measured amounts then both oil
and gasoline should be thoroughly
mixed together before fueling the tank.
Recommended Gasoline
Use regular leaded gasoline available
from an service stations.
.., CAUTION: Never experiment
... with different fuel or fuel ratios.
Never use naphtha, methanol or similar
products.
Recommended Oil
Use concentrated Bombardier snow-
mobile oil available from your dealer.
This type of oil has specially for-
mulated oil bases to meet the lubrica-
tion requirements of the Bombardier-
Rotax engine.
If Bombardier snowmobile
011 is un-
available, substitute with ahigh-quality
2cycle snowmobile oil. The oil/gas
mix must meet the vehicle require-
ments. See oil manufacturer recom-
mendations on the container.
.., CAUTION: Never use outboard
... or straight mineral oils.
Fuel Mixture Ratio
The importance of using the correct
fuel mixture cannot be overstressed.
An incorrect fuel ratio results in serious
engine damage. Recommended fuel
ratio is 50/1 (40/1 during break-in
period)
Sl UNITS
500 mL oil to 25 liters =50/1
IMPERIAL UNITS
1 can 16 oz oil to 5 imp. gals 50/1
or
1can 500mL oil to
51/2 imp. gals 50/1
U.S. UNITS
1 can 12 oz oil to 5 U.S. gals 50/1
ONOTE: To facilitate fuel mixing oil
should be kept at room tempera-
ture.
10
Fuel Mixing Procedure
To mix the gasoline and oil always use
a separate clean container. Never mix
directly in your snowmobile tank. For
best acquire
two containers,
either plastic or metal. Draw from one
until empty then use the second one.
..... WARNING: Gasoline is flamma-
Tble and explosive under certain
conditions. Always manipulate in a
well ventilated area. Do not smoke or
allow open flames or sparks in the
vicinity. If gasoline fumes are noticed
while driving, the cause should be de-
termined and corrected without delay.
Never add fuel while the engine is run-
ning. Avoid skin contact with fuel at
below freezing temperatures.
1. Pour approximately one gallon of
gasoline into a clean container.
2. Add the full amount of oil.

3. Replace the container cap and
shake the container thoroughly.
4.
Add the remainder of the gasoline.
5. Once again
thoroughly agitate the
containe. Then using afunnel
with a
fine mesh screen to prevent the en-
try of
water and foreign particles,
pour the mixture into the
snowmo-
bile tank.
ONOTE:
When using pre-mixed
fuel, always shake the container
thoroughly as the oil has a tendency to
settle.
+
WARNING: Never 'top up' the
gas
tank before placing the vehi-
cle in a
warm area. At certain tempera-
tures, gasoline will expand and over-
flow. Always wipe off any gasoline
spillage
from the snowmobile.
PRE-START CHECK
Check Points
•Activate the throttle control lever
several times to check
that it oper-
ates easily and smoothly. The
throt-
tle control lever must return to idle
position
when released.
• Check fuel level.
• Check
that the ski and the tracks are
not frozen to the ground or snow
surface and that the steering oper-
ates freely.
•Activate the brake control lever and
make sure the brake fully applies be-
fore the brake control lever touches
the handlebar qrip.
•Verify
that the path ahead of the ve-
hicle is clear of bystanders and
obstacles.
+W ARNING:
Only start your
snowmobile once all components
are checked and functioning properly.
11

STARTING PROCEDURE
Emergency Cut-Out Switch
Manual Starting
1. Insert the key in the ignition switch
and turn to ON position.
2. Test
the throttle control lever.
3. Activate the primer (2 to 3 times).
(Also pull the decompressor knob
fully
out.).
ONOTE: The use of the primer is not necessary when the en-
gine is warm.
4. Make sure
that the tether cut-out
cap is in position and that the cord is
attached to your clothing. Check
that the emergency cut-out switch
is in the ON position.
5. Grasp manual starter handle firmly
and pull slowly until aresistance is
felt then pull vigorously. Slowly re-
lease the rewind starter handle.
•
WARNING: Do not apply throttle
while starting.
6. Push in the decompressor
7. Check the operation of the emer-
gency
cut-out switch and the tether
switch. Restart the engine.
•
WARNING: If engine does not
shut-off when flicking the emer-
gency
cut-out switch to OFF position
and pulling the tether
cut-out cap, stop
the engine by turning off the ignition
key. Do
not operate the vehicle fur-
ther, see
your dealer.
8.
Allow the engine to warm before
operating at full throttle.
12
Emergency Starting
Should the rewind starter rope fray and
break, the engine can be started
with
an emergency starter rope.
Remove the rewind starter assembly
from the engine and transfer the rope
handle to your emergency rope.
Wind the rope around the starting
pulley.
•
WARNING: When starting the
vehicle in an emergency situation
by the starting pulley do not reinstall
the rewind starter assembly.

LUBRICATION
Routine maintenance is necessary for
all mechanized products, and the
snowmobile is no . A weekly
vehicle inspection contributes to the
life span of the snowmobile as well as
retains safe and dependable operation.
It is recommended that the steering
system and suspension be lubricated
monthly or every 40 hours of opera-
tion. If the vehicle is operated in wet
snow or in severe conditions these
items should be lubricated more fre-
quently.
...... WARNING: Only perform such
Tprocedures as detailed in this
manual. It is recommended
that dealer
assistance be periodically obtained on
other components / systems
not cov-
ered in this manual. Unless otherwise
.. specified, engine should be turned OFF
for all lubrication and maintenance pro-
cedures.
Console Removal
For any procedure that may re·-
moval of the console, proceed as
follows:
1. Unlock the latch where the console
and dashpanel meet.
2. Push the console downward then
tilt away from the engine. To re-
install, reverse the procedure.
Pulley Guard Removal
...... WARNING: Engine should be
Trunning only when pulley guard is
secured in place.
1. Tilt the hood and remove the con-
sole.
2. Remove the driven pulley guard
(front) by unlocking it from it's at-
taching points.
3. To remove the drive pulley guard,
pullout the retaining clip (A) and
pull on the spring (B) to disengage
the pin from the bracket.
4. Push the pulley guard forward to
disengage the
front attachment (C)
from the frame. Lift the guard from
the vehicle.
13

Drive Belt Removal
+WARNING: Never start or run
the engine without the drive belt
installed. Running an unloaded engine
is dangerous.
1. Tilt the hood and remove the pulley
guard.
2. Open the driven pulley by twisting
and pushing the sliding half. Hold in
fully open position.
3. Slip the belt over the top edge of the
sliding half.
14
4. Slip the belt out from the drive pul-
ley and remove completely form the
vehicle. To install the drive belt,
reverse the procedure.
Bogie Wheel Suspension
Lubricate the suspension bogie wheels
using
low temperature grease. Pump
through the grease fitting at the center
of each wheel until new grease appears
at the joint of the inner side of the
shaft.
Lubricate the rear axle
with low tem-
perature grease. Pump through the
rear axle fittings.
.., CAUTION: Always use a low
... pressure grease gun when lubri-
cating rear axle.

Drive pulley
The drive pulley requires lubrication bi-
monthly or every 20 hours of opera-
tion .
..... WARNING: The lubrication of
Tthe drive pulley should be per-
formed only by an authorized dealer. A
disassembly, cleaning, inspection and
lubrication where applicable should
also be performed by the dealer every
50 operating hours or at the end of
each season, whichever occurs first.
at the grease fit-
appears at the
coupler bolts.
Steering Mechanism
..... WARNING: Do not lubricate
Tthrottle and / or brake cable and
housings.
Lubricate the ski
tings until new
joints. Oil the
Chaincase oil level
Remove the tool box then check the oil
level by removing the oil level inspec-
tion plug. Oil should be at the
bottom
lip of the hole. Replenish as necessary
by removing the filler cap using a spark
plug socket.
Oil level
Inspection plug
Filler cap
15

MAINTENANCE
The following Maintenance Chart indi-
cates regular servicing schedules to be
performed by you or your servicing
dealer. If these services are performed
as suggested, your snowmobile will
give you many years of low-cost use.
.& WARNING: Only perform such
.... procedures as detailed in this
manual. It is recommended that dealer
assistance be periodically obtained on
other components / systems not cov-
ered in this manual. Unless otherwise
specified, engine should be turned OFF
for all lubrication and maintenance pro-
cedures.
SERVICE AND
MAINTENANCE
CHART
Spark plug
Suspension condition
Track condition
Track tension and alignment
Carburetor adjustment
Drive belt condition
Steering mechanism
Brake condition
Steering adjustment
Engine head nuts
Engine mount nuts
Muffler attachment
General inspection
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17
17
17
17
18
18
18
18
19
19
19
19
20
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16
NOTE: The ten hour inspection is a very important part of proper service and
maintenance.

... CAUTION: If spark plug condi-
... tion is not ideal, contact your au-
thorized dealer.
Check the spark plug gap using a wire
feeler gauge.
Reinstall the plug and connect the wire.
Suspension Condition
Visually inspect suspension springs.
Replace any weak or broken spring.
Check for wear or looseness. Correct
as required.
If the track tension is too the
track will have a tendency to thump. If
too tight, performance will be affected.
If necessary to adjust.
1. Using a wrenchIloosen both track
adjusters by unscrewing the lock
nuts situated on the inner side of the
suspension springs.
2. Adjust to proper tension by turning
adjuster bolts clockwise to tighten
counter-clockwise to slacken. Ad-
just both side equally.
Track Condition
Lift the rear of vehicle and support it
off the ground. With the engine off I
rotate the track by hand, and inspect.
If
worn, cut or the track fiber is ex-
posed or missing or defective inserts or
guides are noted, contact your dealer.
.... WARNING: Do not operate a
Tsnowmobile with a cut, torn or
damaged track.
Track Tension and
Alignment
Lift the rear of the vehicle and support
it
off the ground. Using a rule, check
the track tension from the middle set of
bogie wheels.
The distance between the top inside
edge of the track and the
bottom of the
footboard should be 35 mm
(1 3/8").
Fouled
(black)
Overheated
\light grey)
Spark Plug
Disconnect the spark plug wire and re-
move the spark plug.
Check condition of plug.
• A brownish tip reflects ideal condi-
tions. (Correct carburetor, spark
plug heat range; etc.).
• A black insulator tip indicates foul-
ing caused by; carburetor idle speed
mixture and / or high speed mixture
too rich, incorrect fuel mixture ratio,
wrong type of spark plug (heat
range), or excessive idling.
• A light grey insulator tip indicates a
lean mixture caused by; carburetor
high speed mixture adjusted too
lean, wrong spark plug heat range,
incorrect fuel mixture ratio, or a
leaking seal or gasket.
17

3. Proceed with track alignment.
ONOTE: Track tension and align- ment are inter-related. Do not ad-
just one
without checking the other.
Support the rear of vehicle
with a me-
chanical stand. Start the engine and
accelerate slightly so that the track
turns slowly. Check that the track is
well centered and turns evenly on the
rear sprockets. The distance between
the edges of the track and the link
plates should be the same on both
sides. Misalignment can cause exces-
sive wear of track edges and sprocket
teeth.
Equal distance
To adjust:
1. Stop the engine. Using a wrench,
turn the track adjuster bolt clock-
wise on the side where the track is
closest to the link plate until track
aligns.
2. Firmly retighten the adjuster lock
nuts.
3. Restart the engine and rotate the
track slowly and recheck alignment.
.... WARNING: Before checking the
Ttrack alignment, ensure that the
track is free of all particles which could
be thrown out while it is rotating. Keep
hands, feet, tools and clothing clear of
track. Ensure no-one is standing in
close proximity to the vehicle.
18
Carburetor Adjustment
... CAUTION: Never operate your
.... snowmobile with the air intake si-
lencer disconnected. Serious engine
damage will occur.
Carburetor adjustment should be per-
formed by your dealer.
Drive Belt
Inspect belt for cracks, fraying or ab-
normal wear (uneven wear, wear on
one side,
etc.) If abnormal wear is
noted, probable cause is pulley mis-
alignment. Contact your dealer.
Check the drive belt
width, if less than
2.7 cm (1 1/16"). Replace the drive belt.
ONOTE: When installing a new
drive belt, break-in period of
15-25 km (10-15 miles) is strongly re-
commended
Steering Mechanism
Inspect the steering mechanism for
tightness of components (steering
arms, tie rods, ball joints, spring
coupler bolts,
etc.). If necessary, re-
place or retighten.
Check the condition of skisand ski run-
ners. Replace if worn more than half.
Brake
The brake mechanism on your snow-
mobile is an essential safety device.
this mechanism in proper
work-
ing condition. Above all, do not oper- ..
ate your snowmobile without an effec-
tive brake
C'\'C'TnrY\
.... WARNING: Brake pad or pucks
Tless than 5 mm (3/16 in.) thick
must be replaced. Replacement must
be performed by an authorized dealer.
Brake should apply fully while brake
control lever is still 2.5 cm
(1 inch)
minimum from the handlebar grip.