1990 Husqvarna WR 240-250-260 Workshop Service Repair Manual Download 90 PDF

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Taper: Motorcycle

Distributeur:

UGS: 66309

Mots clés: 1990 Husqvarna Misc Motorcycle Motorcycles WR 240 WR 250 WR 260

Variantes de produits

Description

This workshop service repair manual provides comprehensive information for the 1990 WR 240-250-260, a line of performance-oriented off-road competition and enduro motorcycles. Renowned for its robust engineering and strong heritage in off-road racing, the WR series from this era offers exceptional capability. The 1990 models, representing a refined period for the brand, are designed for demanding terrain and competitive use, balancing power delivery with agile handling. This manual is an essential resource for owners and enthusiasts seeking to maintain the peak performance and longevity of these iconic Swedish-built machines. The scope of this English-language manual is extensive, covering all critical aspects of the WR series for owners, mechanics, and technicians. It details complete engine disassembly, assembly, and tuning for all variants, along with gearbox inspection and repair. Procedures for the front and rear suspension, brakes, electrical systems, fuel system, and chassis are thoroughly explained. Additionally, the manual includes guidance on regular maintenance, troubleshooting common issues, diagnostic procedures, and complete overhaul instructions, ensuring that every facet of the motorcycle can be properly understood and serviced.

🏷️ Basic Information

Identification

Make:

Husqvarna

Model:

WR 240-250-260

Year:

👋 Introduction

Market Position

Segment:

Off-road competition/Enduro motorcycles

Target Audience:

Owners, mechanics, and enthusiasts of 1990 Husqvarna WR series motorcycles.

Competitive Analysis

Competitors 1990:

KTM (e.g., 250 EXC), Yamaha (e.g., YZ250WR), Honda (e.g., CR250R), Suzuki (e.g., RM250).

Key Features

Model Focus:

Performance-oriented off-road capability for the WR (Wide Range) series.

Manual Advantage:

Most complete OEM information for accurate maintenance and repair, crucial for vintage off-road bikes.

📋 Manual Details

Coverage Areas

Manual Type:

Workshop Service Repair Manual

Language:

English

Format:

PDF Download

📖 Manual Coverage

Systems Covered

Engine:

Complete engine disassembly, assembly, tuning, and troubleshooting for all variants.

Transmission:

Gearbox inspection, repair, and maintenance procedures.

Suspension:

Front fork (upside-down telescopic, hydraulic) and rear shock absorber service, including adjustments and rebuilds.

Brakes:

Front and rear brake system maintenance, including caliper service, hydraulic line bleeding, and pad replacement.

Electrical:

Ignition system, lighting, wiring diagrams, and component troubleshooting.

Fuel System:

Carburetor identification, tuning, and rebuilding procedures.

Cooling System:

Air-cooled engine specifications and maintenance.

Frame Chassis:

Frame inspection, component mounting, and general chassis maintenance.

Bodywork:

Plastics, seat, and fuel tank maintenance and removal.

Procedures Included

Maintenance:

Regular service checks, lubrication points, filter replacements, and fluid changes.

Repair:

Step-by-step instructions for common and complex repairs across all systems.

Troubleshooting:

Diagnostic tables and flowcharts for identifying and resolving common issues.

Diagnostics:

Identification of potential failures and methods for checking component functionality.

Overhaul:

Detailed procedures for complete engine and gearbox rebuilds.

Technical Depth

Level Of Detail:

Comprehensive OEM-level technical information, suitable for professional mechanics and advanced DIY enthusiasts.

📊 Manual Specifications

File Format

Digital Format:

Searchability:

Likely searchable text within the PDF for easy information retrieval.

Printability:

Printable pages for hands-on workshop use.

Print Quality

Clarity:

High-resolution scans ensuring legibility of text and diagrams.

Binding Type

Binding For Download:

N/A (Digital Download)

Paper Type

Paper For Download:

N/A (Digital Download)

⚙️ Engine Specifications

Primary Engine

Type:

Two-stroke, single-cylinder, liquid-cooled (typically, though air-cooled variants existed for some models/years - manual confirms specific cooling for 1990 WR)

Bore X Stroke 240:

66.4 mm x 72 mm (approximate, to be confirmed by manual)

Bore X Stroke 250:

67.7 mm x 72 mm (approximate, to be confirmed by manual)

Bore X Stroke 260:

68 mm x 72 mm (approximate, to be confirmed by manual)

Displacement 240:

238 cc (approximate, to be confirmed by manual)

Displacement 250:

246 cc (approximate, to be confirmed by manual)

Displacement 260:

250 cc (approximate, to be confirmed by manual)

Performance

Horsepower:

Estimated 35-45 HP (dependent on specific model and tuning, manual provides exact figures)

Torque:

Manual provides specific torque figures for each displacement variant.

Fuel System

Carburetor Type:

Likely Mikuni VM or equivalent, manual will specify exact model and jetting.

Fuel Type:

Premium unleaded gasoline with appropriate 2-stroke oil mixture (manual specifies ratio).

Reed Valve System:

Standard for performance two-strokes of this era; manual details inspection and replacement.

🔧 Transmission

Standard

Type:

6-speed manual transmission

Optional

Optional Gearboxes:

N/A for this model year, standard 6-speed.

Features

Clutch Type:

Wet, multi-plate, cable-actuated clutch.

Gear Ratios:

Manual provides specific gear ratios for each of the 6 speeds.

Transmission Oil Spec:

Manual specifies type and capacity (e.g., SAE 80W or 10W-40 motorcycle gear oil).

📐 Dimensions

Exterior

Wheelbase:

Manual will provide specific wheelbase length for accurate geometry.

Weights

Dry Weight:

Typically around 230-250 lbs (104-113 kg), manual confirms exact figure.

Fuel Capacity:

Approx. 2.5 - 3.0 gallons (9.5 - 11.4 liters), manual confirms exact capacity.

Gross Vehicle Weight Rating:

Manual will list the GVWR for safe operation.

Wheels Tires

Front Wheel Size:

21 inches

Rear Wheel Size:

18 inches

Front Tire Size:

Manual specifies recommended sizes (e.g., 80/100-21).

Rear Tire Size:

Manual specifies recommended sizes (e.g., 100/100-18).

🛡️ Safety Features

Ratings

Safety Standards:

N/A (Off-road motorcycles are not subject to the same crash testing and safety rating systems as road vehicles).

Active Features

Braking System:

Hydraulic disc brakes front and rear for effective stopping power.

Passive Features

Frame Construction:

Robust steel frame designed for off-road durability.

💡 Technology Features

Infotainment

Infotainment System:

N/A (Basic off-road motorcycle technology).

Driver Assistance

Rider Aids:

N/A (No electronic rider aids typical for this era and type of motorcycle).

Connectivity

Connectivity Features:

🔧 Maintenance

Service Intervals

Oil Change Interval:

Manual specifies gearbox oil change intervals based on operating hours or mileage.

Air Filter Cleaning:

Frequent cleaning recommended, manual details procedure and intervals.

Spark Plug Replacement:

Manual provides recommended spark plug types and replacement intervals.

Fluid Specifications

Engine Oil Type:

Manual specifies the correct 2-stroke premix ratio and type of oil for the fuel.

Cooling System Fluid:

Manual specifies coolant type and mixture for liquid-cooled variants.

Known Issues

Carburetor Fouling:

Common issue in two-strokes; manual details cleaning and tuning.

Clutch Wear:

Wear on clutch plates is common with hard use; manual details inspection and replacement.

Suspension Seals:

Fork seals can degrade over time; manual provides guidance on replacement.

Parts Replacement

Piston Ring Wear:

Manual provides specifications for piston ring gap and replacement intervals.

📚 Vehicle History

Brand Heritage

Husqvarna Heritage:

Husqvarna is one of the oldest motorcycle manufacturers, with a strong heritage in off-road racing and innovation since its inception.

Model Evolution

Wr Series Development:

The WR (Wide Range) series was developed for enduro and off-road competition, offering a balance of power, suspension travel, and handling.

Production

Manufacturing Location:

Sweden (traditional Husqvarna manufacturing base).

Model Significance:

The 1990 models represent a period of refinement in Husqvarna's off-road offerings before major ownership changes.

🏆 Awards & Recognition

Recognitions

Historical Performance:

Husqvarna WR models have a history of success in enduro and off-road racing; specific awards for the 1990 models would be race-dependent.

Ratings

Owner Satisfaction:

N/A (No formal ratings for this vintage model, but enthusiast forums often reflect satisfaction with robust build quality).