2001 Yamaha WR250F(N) Motorcycle Service Manual
Explains operation, inspection, basic maintenance, and tuning for Yamaha WR250F(N) models. Includes procedures for all systems
Yamaha Models Covered & Key Technical Specifications
Models: Yamaha WR250FN (USA), Yamaha WR250F (EUROPE), Yamaha WR250F(N) (CDN, AUS, NZ, ZA)
Sub-models / Variants: USA, Europe, CDN, AUS, NZ, ZA variants
Model Years: 2001
Technical Data:
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Engine: Liquid-cooled 4-stroke, DOHC, single-cylinder, 249 cc
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Bore x Stroke: 77.0 x 53.6 mm
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Compression Ratio: 12.5:1
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Starting System: Kickstarter
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Transmission: Constant mesh 5-speed
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Lubrication System: Dry sump
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Fuel System: FCR-MX37 Keihin carburetor
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Ignition System: CDI magneto
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Front Suspension: Telescopic fork, 300 mm wheel travel
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Rear Suspension: Swingarm (link type monocross suspension), 315 mm wheel travel
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Coolant Capacity: 1.3 L (1.14 Imp qt, 1.37 US qt)
Yamaha Manual Features & Content Preview
2001 Yamaha WR250F(N) Service Manual
- Official 2001 Yamaha WR250F(N) service manual covering engine, chassis, and electrical systems for USA, Europe, CDN, AUS, NZ, and ZA variants.
- OEM publication P/N 5PH-28199-30 detailing factory-recommended adjustment parameters and component tolerances for the 5PH-series engine.
- 307 pages of precise technical specifications, maintenance schedules, torque charts, and exploded-view diagrams.
- Indexed PDF structure featuring built-in search functionality for fast component lookup directly from your workbench.
- Available as an instant download immediately after purchase.
Manual Content Coverage
This factory-authorized publication gives you the exact technical documentation required to maintain these competitive racing machines. It starts with general machine identification, fuel requirements, and break-in procedures for new units. From there, the manual dives into the heavy lifting. You will find exhaustive specification tables for engine and chassis systems, along with rigid maintenance intervals for race-prepped engines. The subsequent chapters detail everything from standard maintenance to specialized tuning instructions for optimizing engine and suspension settings.
Specification and Data Preview
The documentation provides comprehensive torque reference tables, fluid capacity charts for the engine oil and cooling systems, and detailed electrical specifications including magneto, charging coil, and ignition coil resistance values. It lists the standard values and service limits for critical wear items like cylinder bore, piston clearance, valve stem-to-guide clearance, and camshaft dimensions.
For routine adjustments, essential data such as the drive chain slack limit (40–50 mm) and precise valve clearances are clearly outlined. Working on high-performance motocross bikes involves inherent mechanical risks, so always ensure you use properly calibrated tools and strictly adhere to the specified safety precautions and torque sequences when reassembling critical components.
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