1985-1988 Yamaha YFM200 Moto-4 Service Manual

This service manual covers the Yamaha YFM200 Moto-4, including N, DXS, DXT, and U models. It details periodic maintenance, engine overhaul, and chassis systems. P/N LIT-11616-05-40.

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Document Details

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Document Number / Seller:
27369 / Jennifer Thompson
File Size:
34.30 MB
File Type:
ZIP
Language:
English
Pages:
177
Printable:
Yes
Category:
ATV
Last updated / verified
Jan 6, 2026

Models Covered & Key Technical Specifications

YAMAHA YFM200 MOTO-4 (1985-1988)

Technical Documentation | Series: N/DXS/DXT/U Record

  • Verified Measurement Bounds: For engine cooling, 196.3 cm³ defines the standard displacement parameter.
  • Engineered Current Rating: The ignition coil requires 10 kV or more for reliable spark generation Topology.
  • Principal Heat Tolerance: The specified material is rated at 500°C -- signifies the operational thermal limit Bounds.
  • Advanced Alignment Specs: The drive shaft requires a 0.1–0.2 mm radial clearance for optimal function Logic.
  • Defined Speed Performance: Maximum output reaches 120 mm / (4.7 in) for ground clearance Standards.
  • General Maintenance: For engine overhaul, 177 pages details comprehensive repair procedures Architecture.

Professional Workshop Service Manual & Technical Specifications

Service Manual: Yamaha YFM200 Moto-4 Detailed Service Manual for Yamaha YFM200 ATV (1985-1988) – 177 Pages | Pro Service File Documentation-Framework

Repair-Classification: Service Manual // Diagnostic-Area: Motorcycle / ATV Logic // Engine-Type: 4-Stroke Air-Cooled SOHC.

Assessment-Element Value Context
Applicable Models YFM200N, YFM200DXS, YFM200DXT, YFM200U All models covered within the specified range.
Document Part Number LIT-11616-YF-20 Identifies this specific manual version.
Total Pages 177 Provides comprehensive information.
Language English Ensures broad accessibility.
Publication Date April 1984 Original release information.

Safely calling for this manual provides access to critical information for maintaining and repairing your Yamaha YFM200 Moto-4 ATV. It meticulously documents procedures for engine, transmission, chassis, and electrical subsystems.

Introduction and Overview

This document serves as a comprehensive guide, detailing all necessary information for the proper maintenance and repair of the specified Yamaha ATV models. It includes general information, periodic inspections, and detailed procedures for engine overhaul and chassis adjustments.

Engine and Drivetrain Systems

The manual thoroughly covers engine systems, including valve clearance, cam chain tension, and carburetor adjustments. Detailed instructions for engine overhaul and disassembly are provided, ensuring all mechanical aspects are addressed.

Chassis and Electrical Components

Procedures for chassis maintenance, including front and rear wheel systems, steering, brakes, and cables, are clearly outlined. The electrical system section details wiring diagrams, starter motor operation, charging systems, and ignition system tests.

Specifications and Diagrams

Extensive specifications, including general torque values, unit definitions, and conversion tables, are included. Exploded diagrams throughout the manual aid in identifying parts and understanding assembly sequences. The manual documents torque specifications for engine components to ensure proper structural misalignment prevention.

Maintenance and Troubleshooting

Guidance on periodic maintenance and lubrication is provided, alongside troubleshooting charts for common issues related to the shaft drive and ignition systems. This ensures that any problems are quickly identified and resolved.

FAQ

What is the **required** fluid capacity for the YFM200? keyboard_arrow_down

1.8 L (1.9 US qt) is the total engine oil capacity for periodic changes, with 0.13 L (0.11 US qt) for the final gear.

Calculate the **specified** component identification for the spark plug gap. keyboard_arrow_down

0.6–0.7 mm (0.024–0.028 in) is the correct spark plug gap measurement.

What values **essential** for adjustment procedures are included? keyboard_arrow_down

Valve clearance adjustments require 0.05-0.09 mm (cold) for intake and 0.11-0.15 mm (cold) for exhaust.

Assess the **correct** pressure specifications for the tires. keyboard_arrow_down

14.7 kPa (0.15 kg/cm², 2.2 psi) is the recommended standard tire pressure for the front and rear.

What components **documented** in the assembly sequence require special attention? keyboard_arrow_down

Pages 150-177 detail the final drive shaft disassembly and assembly, including specific torque values and alignment procedures for critical components to prevent damage.

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This service manual has been a lifesaver for my Yamaha YFM200. The detailed instructions and diagrams made repairs straightforward. The download process was smooth, and I received the email with the link promptly. Highly recommend!