Ski-Doo 1978 Blizzard Bedienungsanleitung

"_rIfIII'®

1978

OPERATOR

MANUAL

"""-""'ski-doa

snowmobll

••

Suggested retail price $2.50

(first copy

fr.

with unit purchaeed)

"Trademarks

of Bomberchr limited

Utho'd

in canada

414347&00

BLIZZARD

This vehicle has been designed for and should be used

on, oval racetrack only.

The performance of this snowmobile significantly ex-

ceeds that

other snowmobiles you may have oper-

ated. Therefore, use of this vehicle should be restricted

to experienced snowmobile racers.

•WARNING: The design of this snowmobilediffers

considerably from most other snowmobiles. Main-

tenance and adjustment must be performed only by a

knowfedgeable mechanic. Always refer

operator

manual.

All warranties on 1978 Blizzard Super Stock .either

expressed or implied including any implied warranty

merchantability and any implied warranty

fitness

for

aparticular purpose are hereby excluded and dis-

claimed.

september30th,

BombarderUmited

Valcowt.

Quebec.

Canada

Recreational

Products

The following aretrademarksof Bombardier limited.

BOMBARDIER ELITE MOTO-SKI

SKI-DOO

EVEREST

FUTURA

ALPINE MIRAGE SPIRIT

BLIZZARD NORDIC NUVIK

CARRY BOOSE OLYMPIQUE SONIC

ELAN SKI-BOOSE

T'NT

Text By:

TECHNICAL

INFORMATION

CENTRE

AFTER

SALES

SERVICE

OEPARTMENT

BOMBARDIER

LlMITEO

VALCOURT,

QUEBEC,

CANADA

All

nghts

r8SQrvedCBombardier limited 1977

FOREWORD

CONGRATULAnONS

This tough. sleekand fast racing vehicle is the result of

incomparable teamwork between Bombardier design-

ers,engineers, technicians and

top

racing drivers. Con-

sequently. this vehicle is designed and engineered with

safety, handling and comfort foremost. Realizing that

this vehicle has been purchased for racing only, this

manual has been prepared to acquaint the owner I

operator with the various vehicle controls and owner-

relatedmaintenance instructions.

This manual emphasizesparticular information denoted

by the wording and symbols:

•WARNING: Identifies an instruction which,

not

followed, could causepersonal injury.

...

CAUTION: Denotes an instruction which, if

not

follovved, could severely damage vehicle compo-

nents.

ONOTE: Indicates

supplementary

information

neededto fully complete an instruction.

All

the information, illustrations

and

component/sys-

temdescriptionscontainedin this manual are correct

the time

publication. However, Bombardier

limited

reserves

the right to make changes in design and spe-

cifications, and /or to make additions to or improve-

ments in its products

without

imposing any obligations

upon itself to install them on its products previously

manufactured.

SAFETY

MAINTENANCE

OII

••

rve

the

foIowII

preceudonc

•Throttle mechanism should be checked for free

movement before starting engine.

• Engineshould be running only when pulley guard is

securedin place.

• Never run engine without drive belt installed. Run-

ning an unloadedengine can prove to be dangerous.

• Never run the engine at high R.P.M. when the track

of the vehicleis raised

off

the ground.

• It can be dangerous to run engine

with

the cab re-

moved.

• Gasoline is flammable and explosive under certain

conditions. Always perform procedures in a well

ventilated area. Do not smoke or allow open flames

or sparksin the vicinity. If gasolinefumes arenoticed

while driving, the cause should be determined and

correctedwithout delay.

• Your snowmobile is not designed to be operated on

public streets,roador highways.

Maintain your vehicle in top mechanical condition at

alltimes.

• Your snowmobile is not designed to be driven or

operatedon black top, bare earth, or other abrasive

surfaces. On such surfaces abnormal and excessive

wearof critical parts isinevitable.

• Only perform such procedures as detailed in this

manual.It is recommended that dealer assistancebe

periodically obtained on other components / sys-

tems not covered in this manual. Unless otherwise

specified,engine should be turned OFF for alilubri-

cationandmaintenanceprocedures.

• Installation of other than

"stock"

equipment, in-

cluding ski-spreaders bumpers, pack racks, etc.,

could

severely

affect the stability and safety of your

vehicle.Avoid "adding

on"

accessoriesthat alter the

basicvehicle configuration.

• Thesnowmobileengine can be stopped by activating

theemergency cut-out or tether switches.

• This

vehicle

is not designed nor intended to be used

for otherthan oval racing. Operating it for other use

than competition isillegal.

Please

read

and understand all other warnings con-

tainedelsewhere inthis manual.

THIS MANUAL SHOULD REMAIN

WITH THE

VEHICLE

THE

nME

OFREIALE.

INDEX

CONTROLS/INSTRUMENTS

Throttle control lever, brake control lever, emergency

cut-out switch, tether cut-out switch, rewind starter

handle, choke, tachometer, temperature gauge, fuel

gauche,cab removal 3

BREAK"'N PERIOD 4

FUELMIXING

Recommendedgasoline, recommended oil, fuel mixture

ratio, fuel mixing procedure 4

PRE-STARTCHECK

Checkpoints

................................•

STARnNG

PROCEDURE

LUBRICAnGN

Frequency, pulley guard removal, drive belt removal,

steeringmechanism, chaincase oil level,hydraulic brake

oil level,rotary valve system, driven pulley I

MAINTENANCE

Spark plug, suspension, track, suspensionadjustment,

track adjustment, drive chain tension, carburetor, drive

belt, drive pulley, steering mechanism. steering adjust-

ment, cooling system, engine head nuts, engine mount

nuts, exhaust system, vehicle general inspection

. 7

TROUBLE

SHOOnNG

GUIDE 11

STORAGE

Suspension,skis, fuel tank, carburetors, coolingsystem,

drive pulley, chaincase, controls, chassis, general in-

spection . . . . . . . . . . . 17

SPE~FlCAnG~

CONTROLS

INSTRUMENTS

AJ Throttle ControlLever

BJ Brake ControlLever

Emergency Cut-OutSwitch

Tether Cut-Out Switch

RewindStarterHandle

Tachometer

Temperature Gauge

Throttle

Control

Lev

located

on right side of handlebar. When compressed,

it controls the engine speed and the engagement

the

transmission. When released, engine speed returns au-

tomatically to idle.

Brake

Control

Lev

Mounted on left side of handlebar when applied acti-

vates the hydraulic disc brake system binding the vehi-

cle to a fast smooth stop.

Emergency

Cut-Out

SwItch

Apush button switch located on right sideof handlebar.

To stop the engine in an emergency, pressbutton down

into lowerposition.

Before re-starting engine always depress button into

released

upper position. Thedriver of this vehicle should

familiarize himself

with

the function of this device by

using it several times on first outing. Thereby being

mentally prepared for emergency situations requiring its

use.

•WARNING: If the button has been used in an

emergency situation the source of malfunction

should be determined and corrected before restarting

engine.

Teth.

Cut-Gut

~ch

A pull switch located on the right side of dash panel.

Attach tether cord to wrist or other convenient location

before starting engine then fully insert tether

cut

-out

cap on receptacle.

·0NOTE: The cap must be

used

at all

time

in order

to operate the vehicle.

If emergency engine

"shut

off"

is required,

"pull"

com-

pletely the cap from switch and engine power will auto-

maticallybe

shut

"off"

•WARNING: If

the

switch is used in an emergency

situation the source

malfunction should be

de-

"""'ined

and correctedbeforerestartingengine.

ElRewincl

.....

Auto rewind type located on the center

vehicle. To

engage mechanism, pull handle.

FlTac:hom8t.

The tachometer registers the impulses

magneto.

Direct-reading dial indicates the number of revolutions

per minute (RPM)

the engine.

C.AUTION:The tachometeris protected

afuse,

• if tachometer

stops

operating

check fuse condi-

tion

and

necessary replace.

The

fuse is 0.1 amp. Do

not

use

a higher rated

fuse

as this can cause severe

damage to

the

tachometer.

Tem

............

The gauge.indicates engine coolant temperature, Nor-

mal operating temperature is

00°

C(140° A

The

coolant temperature can vary depending on driving con-

dition however it should never exceed80° C080°

•WARNING: Do

not

remove coolant tank' cap un-

less pressure is released by pulling on

the

top

lever, loss of fluid and possible severe

bums

could

occur.

Choke

The carburetor levers are located on the right side of

each carburetor. To engage choke depress each lever.

To disengagelift levers.

oNOTE: Do not operate vehicle

with

chokeon.

Fuel

Gauge

To check fuel level, simply look through the translucent

tank.

•WARNING: Never use a lite match or open flame

to check fuel level.

C8bRemov"

For those procedures that require cab removal. unlock

side latches then remove cab from vehicle by sliding it

forward.

•WARNING: It is dangerous to run engine

with

cab

removed. <

BREAK-IN

PERIOD

With

Bombardier-Rotax engines, abreak-in period

to 10 operating hours is required before running the ve-

hicle at full throttle. During this period, brief full throttle

accelerations and constant speed variation

will

contrib-

ute

good

break-in. Continued

wide

open

throttle

accelerations can be detrimental. Never let

your

engine

overheat.

CAUTION: Incorrect

lack

abreak-in period

will resultin enginehorsepowerloss.

FUEL MIXING

Oil must be added to the gasoline in pre-measured

amounts then

both

oil and gasoline should

thorough-

ly mixed together before fueling the tank.

Recommended

Guo'"

High octane gasoline must be used. Ex.: Aviation gaso-

line

light

blue 100octane

light green

100-13:>

octane.

...

CAUTION: Never experiment

with

different

fuel

.".

fuel·

ratios. Never use

low

lead

non

leaded

gasoline, naphtha, methanol

similarproducts.

ReconwnendedOil

Use a 50 / 1 Blizzard snowmobile oil, this

type

oil is

specially formulated to meet lubrication requirements

the high performance Bombardier-Rotax engine.

...

CAUTION: Use

other than recommended oil

.".

can resultin engine damage. .

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/oil

ratio is

20/

Imperial Measures

2cans of 16oz Blizzard oil to 4Imp. gals =20to 1

U.S. Measures

2cans

12 oz Blizzardoil to 4U.S. gals =20to 1

ONOTE: To facilitate fuel mixing, oil should be kept

room

temperature. .

Fuel

Mixing

Procedure

To mix the gasoline and oil always use a separate clean

container. Never mix directly in your snowmobile tank.

For best results, acquire

two

containers, either plastic or

metal.

Draw

from one until empty then use the second

one.

•WARNING: Gasoline is flammable and explosive

under certain conditions.

Always

perform

proce-

dures in •

well

ventilated

....

not

smoke or allow

open flames or sparks in

the

vicinity.

gasoline

fumes

are.noticed

while

driving, the cause should be

deter-

mined and corrected

without

delay. Never

add

fuel

while engine is running.

Avoid

ski

contact

with fuel

below

freezing temperatures.

1. Pour approximately

one

gallon

gasoline

into

clean container,

Add

full amountof oil.

3. Replace container gap and shake

the

container

thoroughly.

Add

the remainder

the qasoline,

5. Once again thoroughly agitate the container. Then

using a funnel With a fine mesh

SCreen

to prevent the

entry of water and foreign particles, transfer

mix-

ture from container

into

the

snowmobile tenk,

NOTE:

When using pre-mixed fuel, always shake

. the container thoroughly as

the

oil has a tendency

to settle.

•WARNING: Never -rap

up'

gas

tank

before placing

the

vehicle in a

warm

area.

certain tempera-

tures, gasolinewill

expand

and

overflow.

PRE-START CHECK

CheckPoiints

•Activate the throttle control lever several times to

check that it operates easily and smoothly. The

throttle control lever must return to idle position

when released.

• Check

that

the skis and the track are not frozen to

the ground

snow surface and that steering oper-

ates freely.

•Activate the brake control lever and make sure the

brake fully applies before the brake control lever

touches the handlebar grip.

• Check coolant level.

liquid

should be up to the lower

portion at the top return hose. If additional coolant

is necessary, always use a 50/ 50 (50 parts of water

for 50parts of anti-freeze) solution. When entire sys-

tem hasto be refilled, usea solution of 3parts of anti-

freeze

for

2 parts of water. See coling system in

storage procedures.

•WARNING: Before removing

the

cap always re-

leasethe pressure by lifting

the

lever incorporated

on the cap, loss

fluid and possibility

severe burns

could occur. .

Pressure release

and locking lever

Coolant

level

• Check fuel level.

• Verify that the path ahead of the vehicle is clear of

bystanders and obstacles.

•WARNING: Only start your snowmobile once all

components

are

checked

and

functioning

property.

STARTING

PROCEDURE

1. Test

operation

throttlecon1ro11ever.

2. Engage choke by depressing each lever. To disen-

gage choke simply

lift

the levers. The chokes should

always be used far easier cold engine starts.

After

engine is warm, it is

not

necessaryto usechokewhen

starting. Do

not

operate vehicle

with

choke on.

3. Make sure that the tether cut-out cap is in position

and thatthe cord isattached to your body.

4. Grasp manual starter handle firmly and pull slowly

until a resistance is felt then pull vigorously. Slowly

releaserewind starter handle.

•WARNING: Do

not

apply throttlewhile starting.

5. Check operation of emergency

cut

-out switch and

tether switch. Restartengine.

•WARNING:

the

switch is

used

in an emergency

situation

the

source

malfunction should be

de-

termined and corrected before restarting engine•

6. Allow the engine to warm before operating at full

throttle.

CAUTION: Since engine coolirig is in effect

only

...

when

the

vehicle is in motion,

is recommended

that

you do

not

allow

the

engine

idle for more than

brief periods. Prolonged idling

may

cause engine dam-

age.

LUBRICATION

Frequency

with

any mechanical product routine maintenance

isnecessary.

The steering system and suspension must be lubricated

on a weekly basisor more often if the vehicle isoperated

in wet snow.

•WARNING: Only perform such procedures as

detailed in this manual.

is recommended

that

dealer assistance be periodically obtained on other

components/ systems

not

covered in this manual.

Unless otherwise specified, engine should be turned

OFF

for

all lubrication and maintenanceprocedures.

PulleyGuard

Remov"

•WARNING: Engine should be running only when

pulleyguard is securedin place.

Remove cab. Pull

out

locking clips and unlock latches,

slide the pulleyguard sideways.

locking

clips

J)riveBelt

Remov"

•

WARNING:

Never start or run engine

without

drive belt installed. Running an unloaded engine

isdangerous.

1. Remove cab and pulley guard.

2. Open

the

driven pulley by twisting and pushinq.the

sliding half.' Holdin fully open position.

3. Slip slackened belt over the

top

edge

the sliding

half.

4. Slip the belt

out

from the drive pulley and remove

completely from vehicle. To install drive belt, reverse

procedure.

Steering

Mechanism

Lubricate all tie rod ends at grease fitting until

new

greaseappears at joints. Oil ski leg Icouplerbolts.

Lubricate at the stabilizer bar retaining clamps until

new

greaseappears.

...

CAUTION: Do

not

lubricate

throttle

and Ior

....

brake cable housings.

Chainca.

Oil Level

Remove plug then using a rigid wire as

"dipstick",

check oil level. The oil level on the

"dipstick"

should be

(2"),

replenish as necessary. The chaincase oil

capacity is approximately 255 ml (9 fl oz).

Hydraulic

Brake

011

Level

To check fluid level remove reservoir cover located on

handlebar. Fluid must reach

top

lip

reservoir. If nec-

essary to replenish use only hydraulic brake fluid

meeting specification J-1703.

...

CAUTION: The entry

dirt

foreign particles

....

into

the

brake fluid may constitute system flush-

ing.

Check brake hose for abrasion and signs

leakage.

Check brake pad condition, iflessthan:

250model: 4.5

(

thick

340-440models:

1.6

mm ( Ylt

thick.

the pads must be replaced.

If the reserve is

low

and / or air has entered the system

creating asoft, spongy braking action, the following

should be done:

Remove reservoir cover and

'top

up'

fluid level. Install

cover.

NOTE:

Retain this reservoir level throughout the

following procedure.

Connect a bleeder drain to the valve and insert end of

bleederhose intoacontainer

brake fluid.

Repeatedly depress the brake lever in quick succession

(pumping), to obtain pressure. Once obtained, hold

lever, open bleeder valve then quickly depress brake

lever. Close bleeder valve and allow brake lever to re-

turn slowly.

Continue pressing and releasing brake lever until the

fluid injected into the container isair free.

Disconnect bleederhose, recheck brake fluid.

NOTE:

Brake fluid should be changed at leastonce

every snowmobilingseason.

Rm-y

V.lve

Sy_em

Check reservoir oillevet frequently. Level should not be

below level line of plastic reservoir. If necessary reple-

nish to oil level line using "Castrol Injector

Oil"

equivalent.

. level

DrIv

Pulley

Remove the bolt locking the driven pulley to its shaft

and pull

off

the driven pulley ass'v. Lubricate the shaft

using antiseize compound. Install pulley on shaft and

torque the

bolt

to 0.5-1 kg-m (4-5 ft-lbsl,

MAINTENANCE

The following Maintenance Chart indicates regular ser-

vicing schedules to be performed by you or your ser-

vicing dealer. .

•.WARNING: Only perform such procedures as

detailed in

this

manual. It is recommended

that

de8ler assistance be periodically obtained on

other

components / systems

not

covered in this manual. Un-

leesotherwise specified, engine should be tumed OFF

for

all lubrication and maintenanceprocedures.

Code

Weekly Page

Spark plugs 8

W2 Suspension condition 8

Track condition 8

Suspension 8

W5 Track adjustment 10

W6 Drive chain tension

W7 Carburetoradjustment 11

W8 Drive belt 11

Drive pulley

W10 Drive belt tension 12

Code

Monthly

Page

Ml Steering mechanism 13

M2 Steering adjustment 13

M3 Cooling system 14

M4 Engine head nuts 14

M5 Engine

mount

nuts 14

M6 Exhaust system 14

M7 Vehicle general inspection 14

Spark

pIuga

Disconnect spark plug wires and remove spark plugs.

Checkcondition

plugs.

• A brownish tip reflects ideal condition (correct car-

buretoradjustment, spark plug heat range,etc.I.

• A black insulator

tip

indicates fouling caused by: car-

buretor idle speed mixture and / or high speed mix-

ture

too

rich, incorrect fuel mixing ratio, wrong

type

of spark plug (heat range), or excessiveidling.

• 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 sealor gasket.

ONOTE: This adjustment must

performed

with

the cab removed.

- Ensure that the front suspension is totally extended.

With

the angle finder and a straight edge (laid flat on

the ski feg

top

portion) adjust the camber asrecom-

mended.

W3Track Condition

102.7

(40~

It)

ski stance

Camber

LH.

0°

Camber R.H. 5° negative

ONOTE: The camber is the tilting

the ski leg /

ski from the vertical. To obtain anegative camber

the ski leg / ski must be tilt inward, so that the ski legs

are closer together at the

top

then at the bottom. The

amount of tilt is measured in degrees from the vertical.

The measurement is called camber angle.

To adjust the camber:

Loosen the lock nuts of the upper and lower front arms.

Turn the arms manually until recommended camber

angle is reached. Firmly retighten lock nuts.

ONOTE: Always ensure to maintain the ski stanceof

102.8 cm (40%") while performing this adjust-

ment.

Fouled

(black)

Overheated

(light grey)

Suspension

Condition

...

CAUTION: If spark plug condition is

not

ideal,

..".

contact

your dealer.

Check spark plug gap using a wire feeler gauge. Gap

must

0.40 mm L016"). Reinstall plugs and connect

wires. Correct spark plugs are Bosch W 340 S2S or

equivalent.

Visually inspect suspension springs. Replace any weak

or broken spring. Inspect shoe condition of slide sus-

pension and replace as necessary.

lift

rear of the vehicle and support it

off

the ground so

that the track is free to turn. Rotate track by hand and

visually inspect the condition, pay attention to cross

links and rivets. Immediately replace cracked cross

links and loose or / and missing rivets.

•WARNING: Do not operate a snowmobile

with

cut, torn or damaged track.

Suspension

Adjustment

FrontSuapension

Proceedas follows to adjust:

- Placethe vehicle on an horizontal surface.

- Lift the front of the vehicle (using

two

wooden

blocks (approx.

6")

installed under the bottom plate)

in order to obtain a gap of one inch under each ski

when the front suspension is totally extended.

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