1976-1978 John Deere Snowmobile Service Manual: Cyclone & Liquifire
Covers John Deere 340 & 440 Cyclone and Liquifire Snowmobiles with procedures for engine overhaul, fuel system, electrical system, and power train. JDM-74A-5
Manual Preview
Sample pages from the 1976-1978 John Deere Snowmobile Service Manual: Cyclone & Liquifire manual
Purchase & Download
Models Covered & Key Technical Specifications
Technical Training Operator's Manual: Snowmobile 1976-1978 John Deere 340 Cyclone, 440 Cyclone, 340 Liquifire & 440 Liquifire - Comprehensive Snowmobile Service & Repair Manual Blueprint-Vault
Consolidated Overview Documentation | John Deere Archive.
- Established Assembly Torques: 70 in-lbs signifies the standard torque specification for starter thru bolts Architecture.
- Operational Liquid Volume: For optimal operation, 8.0 U.S. gal. signifies the fuel tank capacity Norms.
- Essential Power Rating: 120 Watts -- signifies the charging system capacity Threshold.
- Baseline Specifications: The engine oil requires SAE 90 for proper chain lubrication Topology.
- Integral Ignition Timing: The alternator output reaches 120 Watts Standards.
- Specific Fastener Specs: For cooling system hoses, 3/8-inch (9 mm) defines the allowable deflection Standards.
Professional Workshop Service Manual & Technical Specifications
Technical Training Operator's Manual: Snowmobile 1976-1978 John Deere 340 Cyclone, 440 Cyclone, 340 Liquifire & 440 Liquifire - Comprehensive Snowmobile Service & Repair Manual Blueprint-Vault
Specification-Class: 1976-1978 John Deere Snowmobiles // Model-Specs: Cyclone & Liquifire Models // Specification-Class: Engine, Electrical, Power Train
| Identifier | Operational-Logic | Calibration-Data |
|---|---|---|
| Engine | 340 & 440 Cyclone, Liquifire | Fan & Liquid-Cooled |
| Electrical System | CDI Ignition, Lighting, Electric Start | Alternator, Coils, Switches |
| Power Train | Drive & Driven Sheaves, Chain Case | Comet 102C Drive Sheave, Disk Brake |
Engineering chapters address:
Engine Overhaul
This section details the disassembly, inspection, and assembly of both fan-cooled and liquid-cooled John Deere engines, covering components from the crankshaft to the cylinder heads.
Fuel System
Covers the Mikuni carburetor system, including its pilot and main metering systems, choke, float, and throttle valve operations, with detailed tuning components and charts.
Electrical System
Explores the Capacitor Discharge Ignition (CDI) system, lighting, and electric start components, offering tests for the trigger, stator, electronic pack, and battery.
Power Train
Details the drive and driven sheaves, chain case, secondary shaft, drive shaft, and brake system, including crucial clutching recommendations and gear ratios.
Specifications
Provides a comprehensive list of mechanical specifications and torque values for various components, ensuring proper assembly and function.
This manual documents torque specifications for starter thru bolts to ensure proper bearing preload accuracy.
FAQ
Customer Reviews
Read what our customers say about this John Deere Snowmobile manual and share your own experience.
Add a Review
This policy contains information about your privacy. By posting, you are declaring that you understand this policy:
- Your name, rating, website address, town, country, state and comment will be publicly displayed if entered.
- Aside from the data entered into these form fields, other stored data about your comment will include:
- Your IP address (not displayed)
- The time/date of your submission (displayed)
- Your email address will not be shared. It is collected for only two reasons:
- Administrative purposes, should a need to contact you arise.
- To inform you of new comments, should you subscribe to receive notifications.
- A cookie may be set on your computer. This is used to remember your inputs. It will expire by itself.
This policy is subject to change at any time and without notice.
These terms and conditions contain rules about posting comments. By submitting a comment, you are declaring that you agree with these rules:
- Although the administrator will attempt to moderate comments, it is impossible for every comment to have been moderated at any given time.
- You acknowledge that all comments express the views and opinions of the original author and not those of the administrator.
- You agree not to post any material which is knowingly false, obscene, hateful, threatening, harassing or invasive of a person's privacy.
- The administrator has the right to edit, move or remove any comment for any reason and without notice.
Failure to comply with these rules may result in being banned from submitting further comments.
These terms and conditions are subject to change at any time and without notice.
Reviews (5)