2003-2007 Yamaha WR250FR Owner's Service Manual (P/N LIT-11626-16-48)

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Yamaha Models Covered & Key Technical Specifications

Models: Yamaha WR250FR, Yamaha WR250F, Yamaha WR250F(R)
Sub-models / Variants: USA, Europe, Canada, Australia, New Zealand, ZA (South Africa)
Model Years: 2003–2007
Serial Numbers: 5UM1 (USA), 5UM2 (Europe), 5UM4 (Canada, Australia, New Zealand, South Africa)
Technical Data:

  • Engine type: Liquid cooled 4-stroke, DOHC, single cylinder
  • Displacement: 249 cm³ (8.76 Imp oz)
  • Bore × stroke: 77.0 mm × 53.6 mm (3.03 in × 2.11 in)
  • Compression ratio: 12.5:1
  • Transmission: Constant mesh, 5-speed, left foot operation
  • Fuel tank capacity: 10 L (2.64 US gallons)
  • Engine oil capacity: 1.4 L (1.48 US quarts) total amount
  • Coolant capacity: 1.3 L (1.37 US quarts)
  • Tire size (front): 80/100-21 51M or 90/90-21 54R
  • Tire size (rear): 100/100-18 59M or 130/90-18 69R
  • Battery voltage/capacity: 12 V/4 AH
Technical Specifications
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Document Number / Seller:
25294 / William Lee
File Size:
17.95 MB
File Type:
PDF
Language:
English
Pages:
343
Printable:
Yes
Category:
Motorbike
Last updated / verified
Jun 21, 2026

Yamaha Manual Features & Content Preview

2003–2007 Yamaha WR250FR Service Documentation

  • Covers 2003–2007 Yamaha WR250FR, WR250F, and WR250F(R) competition-use enduro bikes with the 249 cm³ liquid-cooled 4-stroke engine
  • Official Yamaha publication P/N LIT-11626-16-48, 1st edition November 2002
  • Contains 51 detailed exploded-view mechanical diagrams and 15 cable-routing schematics for chassis and electrical sub-assemblies
  • Accessible from your device as soon as the order is placed
  • Indexed PDF search covers every chapter and appendix
  • This 2003 first edition documents the initial 5UM1, 5UM2, and 5UM4 engine series configurations used for the WR250FR launch and subsequent model years

Technical Scope and Maintenance Structure

This 343-page Yamaha WR250FR service manual contains technical details for engine, chassis, and electrical maintenance. The document details regular inspection routines, including valve clearance checks and air filter cleaning, alongside standard operating parameters for the competition-focused WR engine architecture. Chapters cover engine disassembly, radiator cooling system management, and specific chassis adjustment tasks, such as front fork maintenance and brake system air-bleeding procedures.

Specification Highlights

Maintenance specifications include comprehensive torque tables for engine mounting, balancer shafts, and swingarm pivot bolts. The manual provides reference data for carburetion, including main jet sizes for different world-market models like the 5UM1 USA variant. Coolant system capacity is documented at 1.3 liters across all circuits. The valve clearance for intake valves is specified at 0.10–0.15 mm. Engine oil capacity is 1.4 liters including total system volume. An official 343-page Yamaha OEM workshop manual covering the 2003–2007 Yamaha WR250FR, documenting engine, chassis, electrical, and fuel-delivery specifications for the 5UM-series build.

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.

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