Yamaha WR250 Parts Manual Catalog 1996

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Typ: Motorcycle

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Art.-Nr: 128505

Stichworte: 1996 Marine Motorcycle Sterndrive WR250 Yamaha

Produktvarianten

Beschreibung

The 1996 WR250 is a high-performance off-road motorcycle engineered for demanding Enduro and Motocross competition. As part of the esteemed WR series, this model represents a significant offering in the 250cc two-stroke segment, competing with other specialized off-road machines of its era. Known for its robust engine, capable suspension, and chassis design optimized for challenging terrains, the WR250 embodies a commitment to off-road performance and durability. Its heritage is rooted in a long history of innovation in motorcycle racing, making it a respected choice for riders seeking competitive edge. This comprehensive parts manual serves as an essential resource for owners and technicians maintaining the 1996 WR250. It provides detailed exploded diagrams, precise OEM part numbers, and a complete listing of components across all major systems, including the engine, drivetrain, suspension, brakes, and electrical systems. The manual's primary purpose is to facilitate accurate part identification, ordering, and assembly, ensuring the motorcycle remains in optimal condition. Its structured format and detailed illustrations are designed to aid in efficient maintenance and repair, preserving the performance and longevity of this competition-focused off-road motorcycle.

🏷️ Basic Information

Identification

Make:

Yamaha

Model:

WR250

Year:

Type:

Off-Road Motorcycle

Generation

Generation:

First Generation (1991-1997)

Codes

Chassis Code:

👋 Introduction

Market Position

Market Position:

The 1996 Yamaha WR250 was a high-performance off-road competition motorcycle, specifically designed for Enduro and Motocross racing. It competed against other 250cc two-stroke off-road bikes from manufacturers like Honda (CR250R), Kawasaki (KDX250), and KTM.

Competitive Analysis

Competitive Analysis:

The WR250 lineup was Yamaha's answer to the growing demand for specialized off-road racing machines. The '96 model featured advancements in suspension, engine tuning, and chassis design aimed at improving handling and power delivery in demanding terrains.

Key Features

Key Features:

This parts manual is an indispensable tool for owners and mechanics, providing exact OEM part numbers and detailed illustrations for accurate part identification, ordering, and replacement. Its PDF format ensures accessibility and easy navigation.

📋 Manual Details

Coverage Areas

Coverage Areas:

Comprehensive parts listing for all major components and sub-assemblies of the 1996 Yamaha WR250.

Page Count

Page Count:

Estimated 200-300 pages (typical for comprehensive parts catalogs with detailed diagrams).

Manual Type

Manual Type:

Parts Manual / Parts Catalog / Parts List

Language

Language:

English

Format

Format:

PDF (Portable Document Format)

📖 Manual Coverage

Systems Covered

Systems Covered:

Engine, Fuel System, Cooling System, Exhaust System, Drivetrain, Transmission, Clutch, Suspension (Front & Rear), Brakes (Front & Rear), Wheels & Tires, Frame, Handlebars, Controls, Electrical System (Ignition, Lighting, Wiring Harness), Bodywork, Seats, Footpegs, Decals.

Procedures Included

Procedures Included:

Identification of all individual parts and sub-assemblies, part number referencing for ordering, visual aid for disassembly and reassembly.

Technical Depth

Technical Depth:

Detailed exploded diagrams showing the precise relationship and order of assembly for all components. Identification of OEM (Original Equipment Manufacturer) part numbers.

📊 Manual Specifications

File Format

File Format:

PDF (Searchable and Scalable)

Print Quality

Print Quality:

Professional quality, optimized for clear viewing of detailed diagrams. Allows for printing specific pages as needed.

Binding Type

Binding Type:

Digital Download (N/A - Print on Demand)

Paper Type

Paper Type:

Digital (N/A - Print on Demand)

⚙️ Engine Specifications

Primary Engine

Engine Type:

Liquid-Cooled, 2-Stroke, Reed Valve

Displacement:

239 cc

Bore X Stroke:

67.0 mm x 66.0 mm

Compression Ratio:

8.7:1

Performance

Horsepower:

Estimated 40-45 HP (manufacturer data varies, often not officially published for competition models)

Torque:

Estimated 26-28 lb-ft (manufacturer data varies)

Fuel System

Carburetor:

Mikuni TM38SS (38mm Flat Slide)

Fuel Type:

Unleaded Gasoline (91+ Octane Recommended)

Fuel Tank Capacity:

2.5 Gallons (9.5 Liters)

Lubrication

Oil System:

Pre-mix (Fuel/Oil Mixture)

Recommended Oil Ratio:

50:1 (Gasoline to 2-Stroke Oil)

🔧 Transmission

Standard

Transmission Type:

6-Speed Constant Mesh

Clutch Type:

Wet, Multiple Disc

Features

Gear Ratios:

Refer to manual for specific gear ratios (typically optimized for off-road performance).

Final Drive:

Chain Drive (428 O-ring chain typical)

📐 Dimensions

Exterior

Length:

Approx. 85.2 in (2165 mm)

Width:

Approx. 32.5 in (825 mm)

Height:

Approx. 48.2 in (1225 mm)

Weights

Dry Weight:

Approx. 236 lbs (107 kg)

Wet Weight:

Approx. 254 lbs (115 kg) (with fluids)

Ground Clearance:

Approx. 13.8 in (350 mm)

Wheelbase:

Approx. 57.7 in (1465 mm)

🛡️ Safety Features

Ratings

Safety Ratings:

N/A (Motorcycles are not typically rated by organizations like NHTSA or IIHS in the same manner as passenger vehicles).

Active Features

Active Features:

Hydraulic Disc Brakes (Front & Rear), Engine Kill Switch, Kickstand Safety Switch (on some models).

Passive Features

Passive Features:

Robust frame construction, protective body panels, padded seat.

💡 Technology Features

Infotainment

Infotainment Features:

N/A (Focus is on pure off-road performance, no infotainment systems).

Driver Assistance

Driver Assistance Features:

N/A (Off-road competition motorcycle).

Connectivity

Connectivity Features:

N/A (Off-road competition motorcycle).

Engine Management

Engine Management System:

Mechanical CDI (Capacitor Discharge Ignition) with Yamaha Power Valve System (YPVS).

Ypvs Function:

The YPVS system electronically controls exhaust port timing to optimize power delivery across the RPM range, providing broader powerband and improved low-to-mid range torque.

🔧 Maintenance

Service Intervals

Oil Change Interval:

Recommended at every 10-15 hours of operation or every 2-3 rides (2-stroke pre-mix, so no separate engine oil).

Spark Plug Replacement:

Refer to manual for specific interval, typically every 20-30 hours. Common plug: NGK BR9ES.

Air Filter Cleaning:

After every ride or as needed based on conditions. Use appropriate foam filter cleaner and oil.

Chain Lubrication Adjustment:

After every ride, or more frequently in wet/dirty conditions. Check tension regularly.

Fluid Specifications

Coolant Type:

High-quality motorcycle-specific coolant (e.g., Yamalube Coolant or equivalent).

Brake Fluid Type:

DOT 4 Hydraulic Brake Fluid (for hydraulic disc brakes).

Transmission Oil Type:

Yamalube 2-Stroke Oil or equivalent (pre-mix with fuel).

Known Issues

Known Issues:

Typical 2-stroke off-road issues include carburetor jetting sensitivity to altitude/temperature, clutch wear, piston ring wear, and potential for overheating if cooling system is not maintained. Crank seals can also degrade over time.

Common Wear Items:

Piston rings, clutch plates, brake pads, wheel bearings, steering stem bearings, fork seals, swingarm bushings.

📚 Vehicle History

Brand Heritage

Brand Heritage:

Yamaha has a long and distinguished history in motorcycle racing and off-road performance, with a reputation for innovative engineering and reliable powertrains. The 'WR' designation has been synonymous with their off-road competition machines for decades.

Model Evolution

Model Evolution:

The WR250 was introduced in the early 1990s as Yamaha's dedicated off-road competition model. It evolved significantly over its production run, with key updates to suspension travel, engine performance (often through YPVS - Yamaha Power Valve System advancements), and chassis geometry to meet the demands of Enduro and Motocross racing.

Production

Production Period:

Early 1990s to early 2000s (specific WR250 2-stroke models). The WR250 designation has since been applied to 4-stroke models.

Manufacturing Location:

Japan (Primary)

🏆 Awards & Recognition

Recognitions

Recognitions:

While specific awards for the 1996 model year are not readily available in general public archives, Yamaha's WR series has consistently been recognized within the off-road racing community for its performance and durability.

Ratings

Ratings:

Positive reviews from motorcycle publications of the era often highlighted its strong engine, capable suspension, and competitive pricing compared to its rivals.

Certifications

Certifications:

N/A (Motorcycles are typically certified for emissions and road legality where applicable, not competitive performance certifications.)