JOHN DEERE CYCLONE® AND LIQUIFIRE® SNOWMOBILES

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JOHN DEERE CYCLONE? AND LIQUIFIRE? SNOWMOBILES

Service Manual SM-2108 (Aug-77)

CONTENTS

SECTION 10 - GENERAL Group 5 - Machine Identification Group 10 - Specifications Group 15 - Tune-Up and Adjustment Group 20 - Fuel and Lubricants

SECTION 20 - ENGINE

Group 5 - General Information

Group 10 - Engine Analysis and Inspection

Group 15 - Fan Cooled Reed Valve Engine Over-

haul

Group 20 - Liquid Cooled Reed Valve Engine

Overhaul

Group 25 - Recoil Starters

Group 30 - Liquid Cooling System (Serial

No.

-80,000)

Group 32 - Liquid Cooling System (Serial No.

80,001 -

)

Group 35 - Specifications

SECTION 50 - POWER TRAIN Group 5 - General Information Group 10 - John Deere (Comet) Drive Sheave Group 15 - John Deere Driven Sheave Group 20 - Drive Belt Group 25 - Chain Case, Secondary Shaft and Drive Shaft Group 30 - Mechanical Disk Brake Group 35 - Specifications

SECTION 60 - SUSPENSION

Group 5 - General Information

Group 10 - Slide Suspension (Serial

No.

-80,000)

Group 12 - Slide Suspension (Serial No.

80,001 -

)

Group 15 - John Deere and Goodyear Track

Group 20 - Skis and Steering

Group 25 - Specifications

SECTION 30 - FUEL SYSTEM Group 5 - General Information Group 10 - Mikuni Carburetor Group 15 - Silencers Group 20 - Fuel Pump, Fuel Tank, Screen and In-Line Fuel Filter

SECTION 70 - SERVICE TOOLS Group 5 - Essential Service Tools Group 10 - Convenience Service Tools Group 15 - Dynamometer Test Procedure

SECTION 40 - ELECTRICAL SYSTEM Group 5 - General Information Grouf} 10 - Capacitor Discharge Ignition System (COl) Group 15 - Lighting System Group 20 - Electric Start Kit Group 25 - Specifications

(All information, illustrations and specifications contained in this service manual are based on the latest information available at the time of publication. The right is reserved to make changes at any time without notice.)

OOA

Litho in U.S.A.

Copyright? 1977 DEERE & COMPANY

Moline, Illinois All rights reserved

Snowmobiles

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SM-2108 (Aug-77)

INTRODUCTION

A- Section 30 - Fuel System B-Section 50 - Brakes C-Section 50 - Drive Sheave and Driven Sheave D- Section 40 - Electrical System E- Section 20 - Engine

F-Section 30 - Carburetor G-Section 60 - Track and Suspension H-Section 50 - Chain Case and Drive Shaft

I-Section 60 - Skis and Steering

Fig. I-Components Covered in this Service Manual

This service manual contains service and maintenance information for John Deere 340 and 440 Cyclone and 340 and 440 Liquifire snowmobiles.

repaired using plastic patching kits or fiberglass re pair kits . These kits are available at local auto supply stores .

The manual is divided into sections, with each section pertaining to a certain component or operational system. The information is divided into groups within each section.

Emphasis is placed on diagnosing malfunctions, analysis and testing. Diagnosing malfunctions lists possible troubles, their causes, and how to correct them. These troubles are analyzed to help you understand what is causing the problem, so it can be corrected rather than just replace parts.

Specifications are found in the last group of each section . Special service tools are in Section 70.

On snowmobiles with aluminum pans, minor tunnel and pan damage can be repaired by pop-riveting soft 0.060-inch (1.524 mm) aluminum over the tear, crack or puncture. If the pan and tunnel are damaged extensively, a complete assembly is available .

A pan reinforcement for aluminum pans is available and can be pop-riveted over the damaged pan.

A This safety alert symbol identifies important safety messages in this manu al. When you see this symbol, be alert to the possibility of personal injury and carefully read the message that follows.

Hood, console, tunnel and pan repair are not covered in this service manual. Minor cracks and holes in hood, console or fiberglass pans can be

NOTE: Metric equivalents have been included, where applicable, throughout this service manual.

This manual may be kept in its own cover, or it may be removed and filed in your service manual rack or Consumer Products Service Information Binder.

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Litho in U.S.A.

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Snowmobiles SM-210B (Aug- 77)

General 10 Machine Identification 5-1

Section 10

GENERAL

Group 5 MACHINE IDENTIFICATION

CONTENTS

Page

GROUP 5 - MACHINE ID ENTIFICATION Serial Numbers .. . ... .... .. . ........... .. .. 5-2 Machine Serial Number ... . ... . . . .... .. . .. 5-2 Engine Serial Number . ..... .. ...... . . . . .. 5-2 Vintage Information ..... . ....... . ... . . . . .. .. 5-3

GROUP 10 - SPEC IFICATIONS Machine Specifications.. . . . . . . . . . . . . . . . . . . 10-1 Engine Specifications. . . . . . . . . . . . . . . . . . . .. 10-2 Bolt Torque Chart ...... . .... . .. . . . .. . . . . . 10-4

Page

GROUP 15 - TUNE- UP AND ADJUSTMENT Tune-up Guide . . ... . .. . . ... . ... ... .. .... . 15-1 Adjustments. . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 15-1 Spark Plug Recommendation . . , . . . . . . . . . . . 15-1

GROUP 20 - FUEL AND LUBRICANTS

Break-In Period ... .... .. ... ... .. . ... .

20-1

Fuel .. . . .. . .. . ... ... .. ... .. .. ... . .. . . . . .. 20- 1

Lubricants .. . .. . .... .. . ........ .. ... .. . .. 20-2

Capacities . . ... .. .... ... ... ...... ... . ... . fO -2

Service Intervals ... .. ... ......... ... .. . .. 20-2

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10 General 5-2 Machine Identification

Machine Serial Number

SERIAL NUMBERS

Snowmobiles SM-210B (Aug-77)

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Fig. 1-Snowmobile Serial Number Location

Each snowmobile is assigned an individual machine serial number. This serial number is located on the right-hand side of the tunnel , Fig. 1.

Fig. 3-Liquid-Cooled Engine Serial Number Plate Location

Engine Serial Number

Each snowmobile engine is assigned an individual

serial number. John Deere (Kioritz) engines have the

serial plate on the flywheel housing, Fig . 2.

)

Fig. 2-Fan-Cooled Engine Serial Number Plate Location

Litho in U.S.A.

)

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Snowmobiles SM-210B (Aug-77)

Snowmobile Model

Serial No. Code No. (type)* Engine Manufacturer Engine Model No.

Snowmobile Model

Serial No. Code No. (type)* Engine Manufacturer Engine Model No.

Snowmobile Model

Serial No. Code No. (Type)* Engine Manufacturer Engine Model No.

General 10 Machine Identification 5-3

VINTAGE INFORMATION 1976 Model Year

340 Cyclone

(55,001-70,000)

440 Cyclone

(55,001-70,000)

340 Liquifire

(55,001-70,000)

J34FE

J44FE

J34LE

Kioritz**

Kioritz**

Kioritz**

340/22A Reed Valve

440/22A Reed Valve

340/23LC Reed Valve

440 Liquifire

(55,001-70,000) J44LE Kioritz* * 440/23LC Reed Valve

1977 Model Year

340 Cyclone

(70,001-80,000)

440 Cyclone

(70,001-80,000)

340 Liquifire

(70,001-80,000)

J34FF

J44FF

J34LF

Kioritz**

Kioritz**

Kioritz**

340/22B Reed Valve

440/22B Reed Valve

340/23ALC Reed Valve

440 Liquifire

(70,001-80,000) J44LF Kioritz** 440/23ALC Reed Valve

1978 Model Year

340 Cyclone

(80,001-

)

440 Cyclone

(80,001-

)

340 Liquifire

(80,001-

)

J34FG

J44FG

J34LG

Kioritz**

Kioritz**

Kioritz*

340/22C Reed Valve

440/22C Reed Valve

340/23 BLC Reed Valve

440 Liquifire

(80,001-

)

J44LG

Kioritz**

440/23BLC Reed Valve

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*The first four letters and numbers signify the model number. "J" indicates the snowmobile family and the next three

numbers or letters the model number. EXAMPLE: J34FE or J34FF is a 340 Cyclone Snowmobile, with a 340 fan-cooled engine. "J34 " indicates engine cc; "F" meaning fan-cooled. J44LE or J44LF is a Liquifire Snowmobile,

with a 440 liquid-cooled engine. "44L" indicates engine cc; "L" meaning liquid-cooled. The last letter signifies year manufactured. EXAMPLE: "E"= 1976, "F"= 1977 etc.

**Manufactured for John Deere by Kioritz Corp., Japan.

Litho in U.S.A.

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