1972-1975 John Deere Snowmobiles Service Manual

Comprehensive repair and maintenance guide for John Deere 300, 400, 500, 600, JDX4, JDX8, JD295/S Snowmobiles. Covers engine analysis, fuel systems, electrical systems, and power train components.

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Document Details

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Document Number / Seller:
28041 / Donna Cooper
File Size:
27.95 MB
File Type:
PDF
Language:
English
Pages:
340
Printable:
Yes
Category:
Snowmobile
Last updated / verified
Mar 22, 2025

Models Covered & Key Technical Specifications

1972-1975 John Deere Snowmobiles Service Manual: John Deere Snowmobiles - Comprehensive Service & Repair Guide for 400, 500, 300, 600, JDX4, JDX8, JD295/S, JDX4 Special (1972-1975) Wiring-Compendium

Service Manual | Coverage Overview.

  • Reference Addressable Resolution: 18 in. sets the track width for the 600 model Snowmobile.
  • Integral Bolt Torques: 60 ft-lbs signifies the torque for the flywheel nut on all models.
  • General Capacities: 5.50 U.S. gallons defines the fuel tank capacity for steel tanks.
  • Certified Dimensional Tolerance: 0.0035 in. is the maximum permissible crankshaft runout.
  • Factory Climate Parameters: 103.4 in. is the overall length for all models of snowmobiles.
  • Established Imaging Specs: 25.5 in. is the overall width for all models of snowmobiles.

Professional Workshop Service Manual & Technical Specifications

Integrated Calibration Repair Manual: Snowmobile John Deere Snowmobiles - Comprehensive Service & Repair Guide for 400, 500, 300, 600, JDX4, JDX8, JD295/S, JDX4 Special (1972-1975) Wiring-Compendium

Engineering-Base: 1972-1975 // Year-Coverage: 1972-1975 // Engineering-Base: All Models

Identifier Operational-Logic Calibration-Data
Engine Model No. KEC-340 Piston-Ported KEC-440/4 Piston-Ported KEC-440/5 Piston-Ported
Type of Engine Two-Stroke, Air-Cooled Two-Stroke, Air-Cooled Two-Stroke, Air-Cooled
Carburetor Manufacturer Walbro Walbro Walbro
Carburetor Model No. WR-7 WDA-32 WDA-32

Technical content addresses: Engine specifications, fuel systems, ignition system, lighting system, electric start kit, and power train components. Procedures are detailed across various sections, including engine analysis, troubleshooting, and component-specific repairs. Specifications cover critical measurements for engine parts, ignition timing, and electrical system components, all crucial for proper function and maintenance.

This manual documents torque specifications for various engine components to ensure proper service interval reliability.

FAQ

Assess the **critical** calibration settings for engine performance? keyboard_arrow_down

0.014 inch ± 0.002 mm is the breaker point gap for CCW and Denso ignition systems, crucial for proper ignition timing and performance. Breaker point gaps must be precise for optimal engine operation.

What components have **required** clearance measurements? keyboard_arrow_down

0.005 to 0.015 inch is the specified armature end play for the starter motor, ensuring proper alignment and preventing excessive wear in the end cap and mounting bracket bearings.

Confirm the **specified** torque specifications for engine assembly? keyboard_arrow_down

70 in-lbs is the specified torque for starter thru bolts, critical for securely mounting the starter motor and preventing misalignment during operation. Proper torque ensures the starter operates correctly and safely.

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Reviews (2)

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The SM-2100 Service Manual is a must-have for anyone owning a 1974 John Deere snowmobile. The detailed instructions helped me troubleshoot and repair my engine with ease. The download process was smooth, and I received the link promptly via email. Highly recommended!
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Rated 4 out of 5 stars