2002 Yamaha WR250F(R) Owner's Service Manual

Technical reference for WR250F(R) models including essential maintenance and inspection procedures. PN 5UM-28199-50.

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Technical Safety Notice
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This official OEM document is intended for professional technicians and skilled operators. Performing service on mechanical equipment involves inherent risks. By purchasing, you acknowledge that RepairLoader provides original manufacturer data for informational purposes. Always prioritize safety: use correct tools, wear protective gear, and consult a certified professional if you are uncertain of any procedure.

Yamaha Models Covered & Key Technical Specifications

Models: WR250FR, WR250F, WR250F(R)
Sub-models / Variants: USA, Europe, CDN, AUS, NZ, ZA
Build Years: 2002
Technical Data:

  • Engine: Liquid cooled 4-stroke, DOHC, single cylinder
  • Displacement: 249 cm3
  • Bore x stroke: 77.0 x 53.6 mm
  • Compression ratio: 12.5:1
  • Transmission: Constant mesh, 5-speed, left foot operation
  • Starting system: Kick and electric starter
  • Front suspension: Telescopic fork, 300 mm travel
  • Rear suspension: Swingarm (link type monocross suspension), 315 mm travel
  • Ignition system: CDI
  • Fuel type: Premium unleaded gasoline (min 95 research octane number)
Technical Specifications
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Document Number / Seller:
28071 / Steven Jackson
File Size:
35.26 MB
File Type:
PDF
Language:
English, French, German, Italian, Spanish
Pages:
860
Printable:
Yes
Category:
Motorbike
Last updated / verified
Nov 28, 2025

Yamaha Manual Features & Content Preview

2002 Yamaha WR250F(R) Service Coverage

  • Covers 2002 Yamaha WR250FR, WR250F, and WR250F(R) models, including USA, Europe, Canada, Australia, New Zealand, and South Africa regional variants
  • Original OEM publication 5UM-28199-50, first edition November 2002
  • Contains 80+ pages of detailed specifications, torque charts, and component identification diagrams
  • File delivered as a direct download the moment payment clears
  • Indexed PDF search covers every chapter and appendix
  • Stored against your account so you can retrieve it after a hard-drive loss
  • This 2002 first edition is the primary factory reference for the initial WR250F(R) series release, documenting all critical engine and chassis tuning parameters.

Manual Documentation Scope

This factory manual provides comprehensive technical data and operational guidance for the 2002 Yamaha WR250F(R) lineup. The documentation is structured into seven distinct chapters detailing general information, specifications, periodic maintenance, engine and chassis assembly, electrical system architecture, and machine tuning settings. Each section provides expert data for components such as the DOHC 4-stroke engine, constant-mesh transmission, and monocross suspension system.

Specification and Reference Values

Technical data provided includes critical clearances, capacity limits, and torque settings for shop-floor reference. The cylinder head warp limit is listed at 0.05 mm in the maintenance specification table. Coolant system capacity for the 2002 Yamaha WR250F(R) is documented at 1.3 liters. The intake valve clearance for this unit is specified at 0.10–0.15 mm in the valve specification charts.

Reference what an OEM service publication covers to understand how the factory organizes maintenance and assembly operations. Official 860-page Yamaha OEM service manual covering the 2002 WR250FR, WR250F, and WR250F(R), documenting complete engine, chassis, electrical, and maintenance specifications for global regional builds.

Manual FAQ, Purchase & Download Details

Can I find wiring diagrams and connector pinout references within the electrical sections of the manual? keyboard_arrow_down

Electrical chapter contains comprehensive technical references including wiring diagrams and connector pinout information. These artifacts are designed to provide clear documentation for the electrical systems of the machine.

Which chapters cover the technical details for the engine and chassis components? keyboard_arrow_down

Manual includes dedicated chapters specifically focused on the engine and chassis systems.

What information is provided in the specification tables and tightening-spec sections? keyboard_arrow_down

Document contains specification tables that list general torque requirements, maintenance parameters, and technical tolerances. These sections provide a centralized reference for machine specifications.

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