1992-2000 Yamaha Timberwolf 250 / YFB250 Service Manual

Yamaha Timberwolf 250 technical guide detailing engine overhaul, drive train, chassis, and electrical system repairs. Includes part number YFB250.

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Document Details

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Document Number / Seller:
26721 / Brian Ramirez
File Size:
36.51 MB
File Type:
ZIP
Language:
English
Pages:
400+
Printable:
Yes
Category:
ATV
Last updated / verified
Jul 15, 2025

Models Covered & Key Technical Specifications

Yamaha YFB250 Timberwolf 250 (YFB250) Manual: 1992-2000 Models Blueprint-Vault Timberwolf 250 | Mechanical Collection | Library

  • Factory Specifications: 1.742 mm (68.6 in) establishes the overall length for the USA model.
  • Essential Drive Train: For optimal operation, 73/22 defines the gear ratio for 1st gear in the transmission.
  • Key Chassis: The front brake system requires 20 mm (0.79 in) for standard caliper mounting.
  • Primary Electrical Specs: The ignition system operates on 12V, providing power to the headlight at 25W.
  • General Maintenance: For engine service, 1.5 L (1.6 qt, 1.5 US qt) is the recommended oil capacity.
  • Approved Engine Overhaul: The engine requires 229.6 cc displacement for maximum power output.

Professional Workshop Service Manual & Technical Specifications

Yamaha YFB250 Timberwolf 250 (YFB250) Manual: 1992-2000 Models Blueprint-Vault

Engine-Type: 4-stroke gasoline // Model-Specs: YFB250(D) '92 / ATVs // Engine-Type: Air cooled, 229.6cc, OHV

Document Overview

Specification Technical-Path Context
Machine Identification General Information Vehicle and Frame Serial Numbers
Periodic Maintenance Periodic Inspection and Adjustment Service Intervals and Procedures
Engine Overhaul Engine Overhaul Disassembly and Assembly Instructions
Carburetion Carburetion Fuel System Components and Adjustments
Chassis Chassis Suspension, Brakes, and Wheel Service

Featuring a modular arrangement of sections covering all major systems of the ATV. This manual guides users through diagnostic procedures, disassembly, and reassembly of components. It details all mechanical and electrical aspects, ensuring thorough understanding and correct application of repair techniques.

The document includes coverage of specific system naming. This rigorous approach ensures all technical details are accurately documented. It details torque specifications for engine components to ensure proper bearing preload accuracy.

This service manual provides comprehensive documentation for the Yamaha YFB250 Timberwolf 250, spanning model years 1992 through 2000. It offers in-depth information on maintenance, repair, and troubleshooting across all major systems, including the engine, transmission, suspension, brakes, and electrical components. The manual is structured to provide clear, step-by-step guidance, supported by detailed diagrams and specifications.

FAQ

Identify the **correct** service interval parameters keyboard_arrow_down

1 year is the recommended interval for engine oil and filter replacement, as well as for checking the final gear oil and brake system.

What procedures **documented** system architecture keyboard_arrow_down

10 N·m (1.0 m•kg, 7.2 ft•lb) is the torque specification for the front fender bolts and fuel tank cover.

Determine the **precise** tool requirements keyboard_arrow_down

P/N. YU-01304 is required for piston pin removal and installation, and P/N. YU-01304 is the part number for this specialized tool.

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This service manual is a lifesaver for maintaining my Yamaha Timberwolf 250. The diagrams are clear and the instructions are easy to follow. Plus, the download process was seamless, and I received the link in my email almost instantly! Highly recommend!