2001 Yamaha WR250F(N) Motorcycle Service Manual

Explains operation, inspection, basic maintenance, and tuning for Yamaha WR250F(N) models. Includes procedures for all systems. Ref: 5PH-28199-30.

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Document Details

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Document Number / Seller:
31313 / David Wilson
File Size:
13.10 MB
File Type:
PDF
Language:
English
Pages:
307
Printable:
Yes
Category:
Motorcycle
Last updated / verified
Oct 26, 2025

Models Covered & Key Technical Specifications

Yamaha WR250F(N) (CDN/AUS/NZ/ZA) - Official Service & Repair Manual: 2001 Workshop-Compendium

Covers WR250F(N) systems including engine, chassis, and electrical procedures. | Motorcycle Portfolio

  • Measured Fastener Specs: 8 Nm (0.8 m•kg, 5.8 ft•lb) is the standard torque specification for the bolt (neutral switch) for safe operation.
  • Fundamental Reservoir Specs: For cooling system maintenance, 1.3 L (1.14 Imp qt, 1.37 US qt) defines the total coolant capacity Requirements.
  • Baseline Electrical Load: 12 V 60/55 W × 1 establishes the standard headlight bulb wattage Configuration.
  • Approved Carburetor Specs: The main jet is typically set to #170 for USA models to achieve optimal fuel mapping Baseline.
  • Reference Spring Specs: For the front fork, 460 mm (18.1 in) defines the standard spring free length Parameters.
  • Published Drive Chain Specs: 40 ~ 50 mm (1.6 ~ 2.0 in) is the specified drive chain slack limit for optimal performance Sequences.

Professional Workshop Service Manual & Technical Specifications

Yamaha WR250F(N) (CDN/AUS/NZ/ZA) - Official Service & Repair Manual: 2001 Workshop-Compendium

Model-Specs: WR250F(N) (CDN, AUS, NZ, ZA) // Documentation-Type: Service Manual / Motorcycle Logic // Performance-Values: 307 pages of detailed procedures.

Maintenance hierarchies are structured into logical sections. Procedures are clearly outlined, followed by detailed specifications for each component. The manual covers all major systems, providing a comprehensive overview for the Yamaha WR250F(N). A detailed table of components and their specifications is provided for easy reference.

Engine Specifications

This section details the engine's type, displacement, bore, stroke, and compression ratio, offering insights into its core mechanical structure.

Chassis Specifications

It documents the frame type, caster angle, and trail measurements, which are crucial for understanding the motorcycle's handling characteristics.

Electrical System Details

This part covers the ignition system, CDI magneto, and lighting system, detailing their components and operational parameters.

Drive Train and Suspension Information

It includes specifications for the transmission, clutch, front fork, and rear shock absorber, essential for maintaining optimal performance.

Carburetor and Fuel System Components

Details on carburetor type, jetting specifications, and fuel tank capacity are provided for proper fuel management.

Torque Statement: This manual documents torque specifications for various engine and chassis components to ensure proper corrosion joint prevention.

Metric Baseline Calibration-Standards
Engine Oil Capacity 1.5 L (1.32 Imp qt, 1.59 US qt) 1.6 L (1.41 Imp qt, 1.69 US qt)
Coolant Capacity 1.3 L (1.14 Imp qt, 1.37 US qt) 1.3 L (1.14 Imp qt, 1.37 US qt)
Front Fork Spring Free Length 460 mm (18.1 in) 460 mm (18.1 in)
Rear Shock Absorber Travel 132 mm (5.20 in) 132 mm (5.20 in)
Spark Plug Gap 0.7 ~ 0.8 mm (0.028 ~ 0.031 in) 0.7 ~ 0.8 mm (0.028 ~ 0.031 in)
Piston to Cylinder Clearance 0.040 ~ 0.065 mm (0.0016 ~ 0.0026 in) : 0.1 mm (0.004 in)

FAQ

Calculate the **precise** pressure specifications for the tires? keyboard_arrow_down

100 kPa (1.0 kg/cm2, 15 psi) is the standard tire pressure for both front and rear wheels.

What values confirm the **proper** assembly sequence for the clutch? keyboard_arrow_down

The clutch spring free length should be 39.1 mm (1.54 in) as the standard, with a limit of 38.1 mm (1.50 in) for replacement.

Assess the **standard** service interval parameters for engine oil? keyboard_arrow_down

Engine oil replacement is recommended after every race, or every 500 km (300 mi), and inspection every 1,000 km (600 mi) or as required.

What components are **necessary** for the engine mounting system architecture? keyboard_arrow_down

Engine mounting requires upper and lower engine brackets, along with specific engine mounting bolts (lower: 69 Nm, upper: 55 Nm) and engine guard bolts (23 Nm).

Confirm the **recommended** tool requirements for installing the crankshaft? keyboard_arrow_down

The crankshaft installation requires a crankshaft installing pot (YU-90050/90890-01274), crankshaft installing bolt (YU-90050/90890-01275), adapter (YM-1277/90890-01277), and spacer (YU-91044/90890-04081).

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The manual is incredibly detailed and easy to follow. I appreciated the quick download process and the excellent support I received via email when I had questions.