Suzuki LT 250R Quadracer 1988-1992 Factory Service Repair Manual

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Tipo: Atv

Proveedor:

SKU: 142155

Etiquetas: 1988 1989 1990 1991 1992 ATV LT 250R Quadracer Powersports Quadracer Suzuki

Variantes de producto

Descripción

The Suzuki LT250R Quadracer, produced from 1988 to 1992, stands as a significant model in the performance all-terrain vehicle segment. Engineered with a potent 2-stroke, single-cylinder engine, this ATV was designed to excel in sport riding, emphasizing agility, acceleration, and rider control. Its robust build and focus on performance made it a competitive choice against other leading models of its era, appealing to enthusiasts seeking a capable off-road machine for recreational and competitive use. The LT250R is recognized for its sporty handling characteristics and the reliable power delivery expected from its ATV engineering. This comprehensive Factory Service Repair Manual provides detailed guidance for the Suzuki LT250R Quadracer, covering all essential aspects of its maintenance and repair. It includes in-depth information on general procedures, periodic maintenance, engine servicing, fuel and lubrication systems, the electrical system, and chassis components. With thorough diagnostic and repair procedures, including rebuilding instructions, this manual is an indispensable resource for owners, mechanics, and technicians. It facilitates the upkeep and restoration of the vehicle, ensuring optimal performance and longevity through clear, actionable steps and technical specifications.

🏷️ Basic Information

Identification

Make:

Suzuki

Model:

LT250R Quadracer

Year:

1988-1992

Vehicle Type:

All-Terrain Vehicle (ATV)

Engine Type Designation:

2-stroke, single-cylinder

Product Identifier:

Suzuki LT250R Quadracer 1988-1992 Factory Service Repair Manual

👋 Introduction

Market Position

Model Positioning:

The LT250R Quadracer was a key player in the performance ATV market during its production run, known for its sporty handling and powerful two-stroke engine, appealing to recreational and competitive riders.

Competitive Analysis

Competitors:

Competed directly with models from Yamaha (Banshee, Warrior), Honda (FourTrax 250R, TRX250R), and Kawasaki (Bayou).

Key Features

Performance Focus:

Designed for sport riding, emphasizing agility, acceleration, and rider control.

Engine Technology:

Utilized a potent liquid-cooled or air-cooled two-stroke engine, providing a strong power-to-weight ratio.

📋 Manual Details

Coverage Areas

General Information:

Periodic Maintenance And Tune-Up:

Engine Servicing:

Fuel And Lubrication System:

Electrical System:

Chassis:

Diagnostic Procedures:

Repair Procedures:

Rebuilding Procedures:

Restoration Procedures:

Page Count

Total Pages:

Page Quality:

High Quality

Manual Type

Type:

Factory Service Repair Manual

Language

Language:

English

Format

Digital Format:

Download Type:

Instant Download

Archival Format:

WinRar (if archived)

📖 Manual Coverage

Systems Covered

Engine:

Complete engine overhaul, tuning, and repair

Fuel System:

Carburetor adjustment, cleaning, and rebuilding; fuel tank and lines

Lubrication System:

Oil mixture ratios, lubrication points, and component lubrication

Electrical System:

Ignition system, lighting, charging system, wiring diagrams, troubleshooting

Cooling System:

Air-cooled engine thermal management, heat dissipation

Exhaust System:

Muffler and pipe inspection and maintenance

Drivetrain:

Clutch operation, chain drive maintenance, rear axle assembly

Suspension:

Front and rear suspension component inspection, adjustment, and repair

Brakes:

Hydraulic brake system inspection, bleeding, pad replacement, caliper service

Steering:

Steering mechanism inspection and adjustment

Frame And Body:

Frame inspection, body panel removal and installation

Procedures Included

Basic Maintenance:

Yes (e.g., oil changes, filter replacements, chain adjustment)

Tune Up:

Yes (e.g., spark plug gap, carburetor tuning, timing checks)

Troubleshooting:

Yes (includes diagnostic flowcharts and common issue identification)

Engine Rebuild:

Yes (detailed steps for piston, rings, cylinder, crankshaft, and gasket replacement)

Carburetor Rebuild:

Yes (includes jetting information and component replacement)

Electrical Diagnostics:

Yes (using multimeter, checking for shorts and opens)

Suspension Adjustment:

Yes (pre-load, damping adjustments where applicable)

Brake System Service:

Yes (bleeding, pad replacement, caliper service)

Torque Specifications:

Yes (for critical fasteners)

Technical Depth

Depth:

Comprehensive, covering all aspects from basic maintenance to full rebuilds and diagnostics.

📊 Manual Specifications

File Format

File Type:

Searchable:

Likely searchable (typical for factory PDF manuals)

Print Quality

Printability:

Printable without restriction

Binding Type

Binding:

Digital (PDF)

Paper Type

Paper Quality Reference:

Refers to high-quality pages

⚙️ Engine Specifications

Primary Engine

Engine Type:

Two-stroke, single-cylinder

Bore X Stroke:

66.0 mm x 72.0 mm (for typical LT250R models)

Displacement:

249cc (approximately)

Cooling System:

Typically air-cooled, though some variations might exist (manual should clarify)

Compression Ratio:

Approximately 6.7:1 (typical for this era, manual will confirm exact spec)

Ignition:

CDI (Capacitor Discharge Ignition)

Performance

Horsepower Estimate:

Approx. 25-30 HP (peak, manual will provide exact figures)

Torque Estimate:

Approx. 20-25 lb-ft (peak, manual will provide exact figures)

Fuel System

Carburetor Model:

Mikuni VM28SS (common specification, manual confirms)

Fuel Type:

Unleaded gasoline, 87-91 octane recommended (premix with 2-stroke oil)

Oil Mixture:

50:1 ratio (2-stroke oil to gasoline), confirm in manual

🔧 Transmission

Standard

Transmission Type:

5-speed manual transmission with clutch

Optional

Optional Transmission:

Features

Drive Type:

2WD (Rear Wheel Drive)

Final Drive:

O-ring sealed chain

📐 Dimensions

Exterior

Overall Length:

Approximately 1,770 mm (69.7 in)

Overall Width:

Approximately 1,110 mm (43.7 in)

Overall Height:

Approximately 1,025 mm (40.4 in)

Wheelbase:

Approximately 1,210 mm (47.6 in)

Weights

Dry Weight:

Approximately 176 kg (388 lbs)

Fuel Capacity:

Approximately 10.0 L (2.6 US gal)

🛡️ Safety Features

Ratings

Safety Standards:

N/A (ATV safety standards were evolving during this period; manual focuses on mechanical safety and operational guidance.)

Active Features

Braking System:

Front: Dual hydraulic disc brakes; Rear: Single hydraulic disc brake.

Throttle Limiter:

Potentially present on some models for novice riders (manual would detail adjustments).

Passive Features

Lighting:

Headlight and taillight for visibility.

Handlebar Design:

Grips and controls designed for secure handling.

💡 Technology Features

Infotainment

Infotainment System:

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

Driver Assistance

Driver Assistance Features:

N/A (No electronic driver aids are present on this model).

Connectivity

Connectivity Features:

N/A (No electronic connectivity features).

Engine Management

Engine Control:

Primarily mechanical and electrical systems (CDI ignition, carburetor).

🔧 Maintenance

Service Intervals

Oil Change Interval:

Every 10-15 hours of operation or annually (recommendation from manual).

Air Filter Cleaning:

Every 5-10 hours of operation, or as needed based on conditions.

Spark Plug Replacement:

Every 20-30 hours of operation or annually.

Chain Lubrication Adjustment:

Every 5-10 hours of operation or after washing/wet riding.

Fluid Specifications

Coolant Type:

Not applicable (air-cooled engine).

Transmission Oil Type:

Suzuki recommends specific transmission oil, likely SAE 80W gear oil or equivalent (manual to specify).

Brake Fluid Type:

DOT 3 or DOT 4 hydraulic brake fluid (manual to specify exact type).

Known Issues

Carburetor Fouling:

Common with 2-stroke engines; requires regular cleaning and proper jetting. Manual covers this extensively.

Clutch Wear:

Can occur with aggressive riding; manual provides adjustment and replacement procedures.

Top-End Wear:

Piston and cylinder wear is expected with high-hour 2-stroke engines; manual details rebuild procedures.

📚 Vehicle History

Brand Heritage

Suzuki Atv History:

Suzuki has a strong legacy in off-road and ATV manufacturing, with the LT series being foundational to its market presence.

Model Evolution

Lt250R Development:

The LT250R was a significant evolution in Suzuki's ATV lineup, building upon earlier models and incorporating performance enhancements for a more aggressive riding experience.

Production

Production Years:

1985-1992 (with the manual covering the later, refined models).

Manufacturing Location:

Japan (typical for Suzuki vehicles of this era).

🏆 Awards & Recognition

Recognitions

Model Acclaim:

The LT250R was well-regarded in its time for its performance and handling, often praised in ATV enthusiast magazines and by riders.