2002 Yamaha WR250F Service Manual (690 P.)

Documents WR250F service procedures across intake/exhaust calibration, clutch lash settings, and carburetor specification PN FCR-MX37. Multi-language edition covering operation, inspection, maintenance, and precision tuning.

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Document Details

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Document Number / Seller:
23498 / David Phillips
File Size:
33.31 MB
File Type:
PDF
Language:
English, French, German, Spanish
Pages:
690
Printable:
Yes
Estimated Download Time:
0.68 Minutes
Delivery Format:
Digital (PDF) - Instant Access
Category:
Motorcycle
Brand:
Yamaha
Reviewed and Approved:
Dec 26, 2025
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Models Covered & Key Technical Specifications

Yamaha WR250F(P) Series — 2002 Operational Reference Package | WR250F Series Collection.

  • Integral Operational Speed: The engine is configured at 249 cm³ (8.76 Imp oz, 8.42 US oz) for displacement Architecture.
  • Unit Dimensions Data: For optimal performance, 77.0 × 53.6 mm (3.03 × 2.11 in) represents the bore × stroke Benchmarks.
  • Print Quality Standards: Engine compression ratio limits 12.5:1 as the combustion chamber pressure Range.
  • Certified Tank Capacity: The fuel tank requires 12 L (2.64 Imp gal, 3.17 US gal) for USA and CDN Sequences.
  • Factory Dimensional Tolerance: Overall length is established at 2,165 mm (85.2 in) with minimum Baseline.
  • Established Production Rate: Engine oil capacity maintains 1.5 L (1.32 Imp qt, 1.59 US qt) for periodic maintenance Specifications.

Professional Workshop Service Manual & Technical Specifications

Specialized Shop Manual: Yamaha WR Series (WR250F) - Owner's Service Manual

Maintenance-Category: WR250F(P), WR Series (2002 models) // Conceptual-Layout: Four-stroke liquid-cooled engine systems / Chassis component integration Logic // Design-Core: Comprehensive multi-language documentation with field-proven service procedures.

Specification Operational-Logic Context
690 document pages with TOC summary Chapters covering engine, chassis, electrical systems Complete specifications provided
Liquid-cooled DOHC single-cylinder 249cc engine Service procedures for all major systems Technical data includes dimensions and torque reference
5-speed constant-mesh transmission with primary/secondary reduction Scheduled maintenance intervals and inspection protocols Wiring diagrams, cable routing, specifications documented
Multi-language support (English, French, German, Spanish) Exploded diagrams for assembly/disassembly operations Maintenance specifications and torque data included

Outlining the operational framework across engine systems, the manual addresses cylinders and combustion dynamics, covers transmission and clutch assembly, documents suspension maintenance procedures, and provides electrical system guidance supplemented by technical reference data.

Quality checks are addressed for spark plugs, valves, and critical engine components throughout the document. The troubleshooting chapter addresses cooling system management, brake system operation, and fuel delivery diagnostics. Engine systems documentation encompasses fuel carburetor specifications, ignition timing control via CDI magneto systems, and oil circulation pathways. The manual documents torque specifications for all fastener categories to ensure proper mechanical assembly of motor mounts, transmission housings, and chassis attachment points.

Systematic maintenance procedures are detailed for periodic service intervals, with guidance provided for both routine inspection tasks and comprehensive overhaul operations. Pre-operation inspection protocols establish baseline machine condition assessment, cable adjustment procedures, and bearing inspection methodologies before racing or extended field use.

This service documentation represents the complete technical reference for the WR250F motorcycle platform, addressing owner operation fundamentals, scheduled service requirements, component specifications, and detailed repair procedures for experienced technicians and dedicated riders maintaining their equipment to factory standard specifications.

FAQ

Reference the **specified** torque for the crankcase oil drain bolt? keyboard_arrow_down

20 Nm (2.0 m · kg, 14 ft · lb) is required to secure the crankcase oil drain bolt during reinstallation after oil changes.

What are the **essential** electrical values for the charging coil resistance? keyboard_arrow_down

640 ~ 960 Ω (Green – Brown) at 20 ˚C measures charging coil 1 resistance, while 464 ~ 696 Ω (Green – Pink) indicates charging coil 2 resistance specifications.

Specify the **correct** engine idle speed setting range? keyboard_arrow_down

1,800 ~ 2,100 r/min represents the standard engine idle speed requirement for optimal carburetor and fuel system calibration on the WR250F model.

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The manual is incredibly detailed and well-organized. I found the maintenance guidelines especially helpful. The download process was smooth, and the support team responded quickly to my queries. Highly recommend for any WR250F rider!