Polaris TX Starfire Manual de usuario

OWNERS

TECHNICAL

MANUAL

:50 '

INTRODUCTION

The

following

pages

this manual cover one

the most

sophisticated high performance snowmobiles on the market

today.

The

1973

Starfire snowmobile ---"a

finely

tuned,

quality

performance machine that

backed

heritage

leadership which

unique in the

industry."

The

1973

Starfire and this manual are the results

the

Polaris

Race

Team

joining

forces

with

the

newly

formed

"Polaris Competitive Snowmobile Engineering Department".

This manual covers

not

only

technical and service

information

but

a certain

amount

theory related

the contents enclosed.

All

information

and specifications are

printed

the best

our

knowledge

this time. "Changes and adjustments usually

are required

after

meeting

our

competition and

suit

various

track

conditions"

there

can

and

will

be some

changes

this manual.

enable

send this new

information

you

essential

that

the tear-out card in the back

this manual

be filled

out

full

andmailed

Polaris.

Good luck andsuccessful racing

all

you.

Competitive Snowmobile

Eng.

Dept.

POLARIS

A Textron Company

Roseau, Minnesota 56751

TABLE

CONTENTS

General Dimensions . . .

Specifications . . . . .

Controls

And

Instruments .

Brakes . . . .

Gearing . . . . .

Chaincase Oil Level .

Clutch Alignment

And

Center Distance

Steering . . . .

Tracks

And

Studding

Track

Alignment

And

Tension

Track

Alignment

Track Removal

Suspension .

Drive Belt . .

Drive Clutch .

Clutch Specifications

Trouble Shooting -Drive Clutch

Driven Clutch . . . . . . .

Starflame Engines . . . .

Starflame Engine Specifications.

General Engine

Information

And

Maintenance

Starflame Torque Patterns

Twin

Cylinder

Ignition

. . . . . . .

Kokusan-Denki

Breakerless Flywheel . .

Trouble

Shooting-

Twin

Cylinder

Ignition

Circuit

Checking Of CDI

Unit

Tester .

Three Cylinder

Ignition

. . . . . . .

Trouble Shooting

Three Cylinder

Ignition

Circuit

Checking

CDI

Unit

Tester

Machine Wiring Diagram . . . .

Mikuni

Carburetors

And

Fuel Pump

Fuel Pump . . . . . . . . .

Carburetors

Keihin Carburetors -Schematic

View

Service Instructions . . . . . . .

Float Level . . . . . . . . . .

Trouble

Shooting-

Keihin

RD38

And

RD50

Warranty

Safety

10.

12-

17-

22-24

25-26

28-30

34-35

37-39

42-46

48-49

51-60

62-63

67-68

69-77

79-82

84-85

GENERAL DIMENSIONS

Below

are

the general dimensions

the 1973

Starfire. You

will

note

that

the styling and

some

important dimensions

have

changed.

These

changes

were

made

further improve the

handling characteristi

this machine.

compared

the 1972 Polaris

Starfire the

'73

chassis

longer (Note

'A').

This

required

for

improved turning

and

handling. The ski stance

for

'73

wider

for

better

stability (Note 'B') and more precise steering control

tight

corners.

p--

SPECIFICATIONS

The specifications on this

page

are

very general. More detailed

specifications

will

covered under

each

separate item.

ITEM

294 335 439 649

Starflame Number

Cylinders 2 2 3

Engine

Bore 58mm 62mm 58mm 67.75mm

Stroke 55.

6mm

55.6mm 55.5mm 60mm

Carburetor Mikuni

Mikuni

Keihin Keihin

VM34 VM36 RD38 RD50

Displacement 293.79cc 335.7cc 439.9cc 648.8cc

Material Aircraft Aluminum

Chassis

Overall Length

106" 106" 106"

106"

Overall

Width

37"

Overall Height

34" 34" 34" 34"

Weight

Track Track Width

15"

Track Material Rubber

with

machine riveted cleats

molded rubber

Standard gear ratio

13.35 16.39

16.35 17.35

Ignition Type

Kokusan

Capacitor

Discharge

Timing

Specs

(5000 3.5mmBTDC 3.5mmBTDC 3.5mmBTDC 3.75mmBTDC

RPM)

26"

26" 26"

*Spark

Plugs

(Champion) N57 N57 N57

N57

Plug Gap

.018"

Fuel System Tank Capacity 3.5

U.S.

Gal

. 3.5

U.S.

G•l. 3.5

U.S.

Gal. 3.5

U.S.

Gal.

Fuel Type Premium, not less than

octane

Mixing Ratio

16:

Four

gallons

one quart

Brakes

Type Hydraulic

Disc

Brakes

Disc Diameter

7l4"

Fluid Type

Automotive

Hydraulic Brake Fluid

Suspension

Type

Equaliberator Slide Rail

*Machines come equipped

from

factory

with

Champion N59G

Spark plugs.

Use

these plugs

for

break-in

ONLY.

After

break-

in, install N57 Champion Spark

Plugs.

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