2002 Yamaha WR250FR Motorcycle Workshop Factory Owners-Service Repair Manual

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Art.-Nr: 121510

Stichworte: 2002 Marine Motorcycle Sterndrive WR250FR Yamaha

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Beschreibung

The 2002 Yamaha WR250FR Motorcycle represents Yamaha's commitment to high-performance off-road capability, building on a strong legacy of innovation and reliability. This model is engineered for demanding enduro and off-road riding, offering a potent liquid-cooled, 4-stroke, DOHC engine with approximately 250cc displacement. Known for its robust construction and agile handling, the WR250FR is designed to tackle challenging terrain, embodying Yamaha's renowned off-road prowess. Its engineering quality ensures durability and responsive performance for riders seeking adventure and competition. This comprehensive Factory Workshop Service Repair Manual provides essential information for the maintenance and repair of the 2002 Yamaha WR250FR. It covers critical areas including complete engine and transmission disassembly, assembly, and rebuild procedures, along with detailed guidance on the electrical system, fuel system, suspension, brakes, cooling system, and chassis components. The manual includes step-by-step repair instructions, exploded diagrams, charts, and OEM specifications such as torque values, making it an indispensable resource for owners, professional mechanics, and technicians to ensure accurate and reliable servicing and repairs.

🏷️ Basic Information

Identification

Make:

Yamaha

Model:

WR250FR

Year:

Product Name:

2002 Yamaha WR250FR Motorcycle Workshop Factory Owners-Service Repair Manual

👋 Introduction

Market Position

Target Audience:

Yamaha WR250FR owners, independent repair shops, and motorcycle enthusiasts.

Competitive Analysis

Value Proposition:

Provides official OEM specifications and procedures, ensuring accurate and reliable repairs, unlike generic aftermarket manuals.

Key Features

Organizational Structure:

Step-by-step repair procedures, exploded diagrams, charts, and illustrations for clear guidance.

Technical Accuracy:

Includes OEM specifications like torque values, fuel pressure data, compression ranges, and tolerances.

📋 Manual Details

Coverage Areas

Primary Coverage:

Repair and Maintenance

Specific Tasks:

Tune-ups, Lubrication, Major Engine Rebuild, Transmission Rebuild

Page Count

Estimated Page Count:

N/A (Factory Manuals often vary in print, but are comprehensive)

Manual Type

Type:

Factory Workshop Service Repair Manual

Language

Language:

English

Format

Format:

Printed Document (implied by 'handy reference')

📖 Manual Coverage

Systems Covered

Engine:

Complete engine disassembly, assembly, inspection, and tuning

Transmission:

Complete transmission disassembly, assembly, inspection, and rebuild procedures

Electrical:

Wiring diagrams, connector data, electrical component troubleshooting

Fuel System:

Fuel pressure charts, carburetor/fuel injection system servicing

Suspension:

Front fork and rear shock absorber servicing, adjustments, and rebuilds

Brakes:

Hydraulic brake system maintenance, caliper and master cylinder servicing

Cooling System:

Radiator, hoses, and water pump maintenance (if applicable to model variant)

Chassis:

Frame inspection, bearing services (steering head, swingarm)

Procedures Included

Maintenance:

Scheduled maintenance, lubrication, fluid changes

Repair:

Component-level repair and replacement

Troubleshooting:

Diagnosis of common and uncommon problems

Rebuild:

Comprehensive engine and transmission rebuilds

Inspection:

Detailed visual and functional checks

Technical Depth

Depth:

Comprehensive: From basic tune-ups to full engine and transmission overhauls

User Level:

Professional or advanced amateur mechanic with basic mechanical knowledge

📊 Manual Specifications

File Format

Digital Format:

Not specified, but factory service manuals are typically available in PDF or printed book format.

Print Quality

Quality:

High quality, detailed illustrations, charts, and diagrams (as per description)

Binding Type

Binding:

Typically spiral-bound or perfect-bound for ease of use in a workshop environment.

Paper Type

Paper Quality:

Durable paper stock suitable for workshop environments.

⚙️ Engine Specifications

Primary Engine

Engine Type:

Liquid-cooled, 4-stroke, DOHC, 4-valve

Displacement:

250cc (Approx. 249cc)

Bore X Stroke:

Typically around 74.0 mm x 58.0 mm (Requires confirmation from manual specifics)

Performance

Horsepower:

Estimated 30-35 HP (Actual figures vary based on tune and dyno results)

Torque:

Estimated 17-20 lb-ft (Actual figures vary based on tune and dyno results)

Fuel System

Fuel Delivery:

Carbureted (Likely Keihin FCR series for this era WR250F)

Ignition:

Engine Internals

Compression Ratio:

Typically around 12.5:1 to 13.5:1 (Requires confirmation from manual specifics)

🔧 Transmission

Standard

Transmission Type:

6-speed constant mesh

Features

Clutch:

Wet, multi-plate

Final Drive:

O-ring sealed chain

📐 Dimensions

Exterior

Overall Length:

N/A (Specific to model variant, requires manual confirmation)

Overall Width:

N/A (Specific to model variant, requires manual confirmation)

Overall Height:

N/A (Specific to model variant, requires manual confirmation)

Weights

Wet Weight:

Approximately 245 lbs (111 kg) (May vary slightly)

Dry Weight:

Approximately 230 lbs (104 kg) (May vary slightly)

🛡️ Safety Features

Ratings

Safety Certification:

Meets relevant safety standards for off-road motorcycles.

Active Features

Braking System:

Hydraulic disc brakes front and rear.

Passive Features

Lighting:

Headlight, taillight, stop light (as per street-legal variant or optional kit).

💡 Technology Features

Infotainment

Infotainment System:

N/A (Motorcycle designed for off-road performance, not infotainment).

Driver Assistance

Rider Aids:

N/A (No electronic rider aids such as ABS or traction control on this model).

Connectivity

Connectivity Features:

🔧 Maintenance

Service Intervals

Oil Change Interval:

Typically every 1,000-2,000 miles or 6 months, but specific intervals will be detailed in the manual.

Air Filter Cleaning:

Recommended after every few rides, especially in dusty conditions.

Fluid Specifications

Engine Oil Type:

Yamalube 4 (or equivalent JASO MA certified 10W-40 or 20W-50) - specific viscosity depends on ambient temperature and should be confirmed in manual.

Coolant Type:

Ethylene glycol-based coolant with demineralized water (50/50 mix) - specific type will be in manual.

Brake Fluid Type:

DOT 4 hydraulic brake fluid.

Known Issues

Common Wear Items:

Clutch plates, wheel bearings, steering head bearings, spark plugs, piston rings, valve stem seals (typical for high-performance off-road bikes of this era).

Carburetor Tuning:

May require periodic adjustment or cleaning to maintain optimal performance due to jetting sensitivity to altitude and temperature changes.

📚 Vehicle History

Brand Heritage

Yamaha Legacy:

Yamaha has a long-standing reputation for producing high-performance off-road motorcycles known for their reliability and innovation.

Model Evolution

Wr250F Lineage:

The WR250F series has been a staple in Yamaha's off-road lineup, evolving from its motocross counterpart (YZ250F) with features for broader off-road use, including wider gear ratios and often headlight/taillight for dual-sport capability depending on the specific 'FR' designation.

Production

Production Era:

The WR250F was a significant model throughout the early 2000s, with the 2002 model representing an important iteration of its development.

🏆 Awards & Recognition

Recognitions

Off Road Performance:

The WR250F line generally received positive reviews for its performance, handling, and durability in off-road and enduro riding from the automotive press.