Suzuki LT250R QUAD Full Service & Repair Manual 1987-1992

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This manual covers the Suzuki LT250R QUAD, also known as the QUAD Racer, produced between 1987 and 1992. This All-Terrain Vehicle (ATV) was engineered for performance and agility, building on...

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Typ: Atv

Anbieter:

Art.-Nr: 57032

Stichworte: 1987 1988 1989 1990 1991 1992 Atv LT250R QUAD Misc Motorcycles Suzuki

Produktvarianten

Beschreibung

This manual covers the Suzuki LT250R QUAD, also known as the QUAD Racer, produced between 1987 and 1992. This All-Terrain Vehicle (ATV) was engineered for performance and agility, building on Suzuki's rich motorsport heritage. The LT250R was a popular choice for sport riding, featuring a robust 2-stroke engine and a 6-speed manual transmission. Its design emphasized handling and rider control, making it a competitive machine in its class. This comprehensive Factory Service Repair Workshop Manual provides in-depth information for maintaining and repairing your Suzuki LT250R QUAD. It includes detailed procedures for routine maintenance, engine overhaul, cooling system service, fuel system adjustments, ignition system troubleshooting, transmission and drivetrain repairs, suspension tuning, braking system service, and electrical system diagnostics. With factory-level detail, including technical specifications, wiring diagrams, and troubleshooting charts, this manual is an essential resource for owners and technicians to ensure the optimal performance and longevity of their vehicle.

🏷️ Basic Information

Identification

Make:

Suzuki

Model:

LT250R QUAD

Model Nickname:

QUAD Racer

Vehicle Type:

All-Terrain Vehicle (ATV)

Year Range Covered:

1987-1992

Codes

Chassis Code Common:

👋 Introduction

Market Position

Target Audience:

Owners, mechanics, and enthusiasts of the Suzuki LT250R QUAD

Purpose:

To provide complete repair, servicing, and maintenance information

Competitive Analysis

Value Proposition:

Comprehensive, factory-level documentation at an affordable price with no expiration

Key Features

Content Focus:

Detailed procedures, schematics, and specifications for all aspects of the vehicle

📋 Manual Details

Coverage Areas

Manual Type:

Factory Service Repair Workshop Manual

Language:

English

Format:

PDF Download

Availability:

Instant Download

Licensing:

No Expiry Dates

Additional Fees:

No Extra Fees

Manual Specifications

File Format Quality:

High-resolution PDF with searchable text

Print Quality:

Printable pages suitable for home or professional printing

Binding Type:

N/A (Digital Download)

Paper Type:

N/A (Digital Download)

📖 Manual Coverage

Systems Covered

Engine Overhaul:

Complete engine disassembly, inspection, repair, and reassembly

Cooling System:

Radiator, coolant flow, fan operation, hoses, and thermostat

Fuel System:

Carburetor tuning and overhaul, fuel pump, fuel lines, and fuel tank

Ignition System:

CDI unit, ignition coil, spark plug, stator, and timing

Transmission And Drivetrain:

Gearbox disassembly, clutch service, drive chain maintenance, and axle repairs

Suspension System:

Front and rear suspension, shock absorbers, control arms, and linkage

Braking System:

Hydraulic brake system, front and rear calipers, master cylinders, brake lines, and pads

Electrical System:

Wiring diagrams, lighting, battery, charging system, and starter

Frame And Bodywork:

Frame inspection, body panel removal and installation, and plastics

Procedures Included

Routine Maintenance:

Oil changes, filter replacements, chain adjustments, and general inspections

Troubleshooting:

Diagnostic charts and symptom-based troubleshooting for common issues

Repair Procedures:

Step-by-step instructions for component replacement and repair

Technical Specifications:

Torque values, clearances, fluid capacities, and electrical resistances

Carburetor Rebuild:

Detailed instructions for carburetor cleaning, adjustment, and part replacement

Engine Rebuild:

Piston replacement, ring gap adjustment, cylinder honing, and valve adjustments

Suspension Tuning:

Adjustments for preload, compression, and rebound damping

Electrical Diagnostics:

Testing of charging system, ignition system, and lighting circuits

Technical Depth

Depth Of Coverage:

Comprehensive factory-level detail for all mechanical and electrical systems

Rebuild Guidance:

Suitable for full engine and transmission rebuilds

Diagnostic Capability:

Includes troubleshooting charts to identify and resolve common problems

⚙️ Engine Specifications

Primary Engine

Engine Type:

2-stroke, liquid-cooled, reed valve induction

Displacement:

246 cc

Bore X Stroke:

66.0 mm x 72.0 mm

Compression Ratio:

7.7:1

Carburetor Model:

Mikuni VM28SS

Performance

Horsepower Estimate:

~30-35 HP (estimated)

Torque Estimate:

~25-28 lb-ft (estimated)

Fuel System

Fuel Type:

Unleaded gasoline (90 octane or higher recommended)

Fuel Mix Ratio:

50:1 (2-stroke oil to gasoline)

Fuel Tank Capacity:

2.9 US gal (11 L)

🔧 Transmission

Standard

Transmission Type:

6-speed manual constant mesh

Clutch Type:

Wet, multi-plate

Features

Final Drive:

O-ring sealed chain, drive sprocket, rear sprocket

Gear Ratios:

Specific ratios provided in manual (e.g., 1st: 2.833, 2nd: 2.063, etc.)

Fluid Requirements

Transmission Oil Type:

SAE 80W API GL-4 hypoid gear oil

Transmission Oil Capacity:

0.75 US qt (0.7 L)

📐 Dimensions

Exterior

Overall Length:

72.0 in (1829 mm)

Overall Width:

45.1 in (1145 mm)

Overall Height:

41.7 in (1059 mm)

Wheelbase:

50.0 in (1270 mm)

Ground Clearance:

7.1 in (180 mm)

Weights

Dry Weight:

357 lbs (162 kg)

Gross Vehicle Weight Rating Gvwr:

N/A (ATV specification)

🛡️ Safety Features

Ratings

Safety Certification:

Designed for off-road use, adherence to applicable ANSI/SVIA standards

Active Features

Braking System Type:

Hydraulic disc brakes, front and rear

Throttle Limiter:

Thumb throttle with safety lever

Passive Features

Hand Guard Design:

Integrated hand guards

Footwells:

Wide, non-slip footwells

💡 Technology Features

Infotainment

Instrumentation:

Basic analog speedometer, tachometer, and warning lights (oil, neutral).

Driver Assistance

Atv Specific Features:

Focus on mechanical and powertrain technology; no electronic driver assistance systems.

Connectivity

Connectivity Options:

🔧 Maintenance

Service Intervals

Engine Oil Change:

Every 20 hours or 6 months (whichever comes first)

Air Filter Cleaning:

Every 10 hours or as needed based on conditions

Spark Plug Inspection:

Every 20 hours or 6 months

Chain Lubrication Adjustment:

Every 10 hours or after heavy use

Fluid Specifications

Engine Oil Type 2Stroke:

High-quality 2-stroke synthetic or semi-synthetic oil, specifically for air-cooled engines (e.g., Suzuki Performance 2T, Yamalube 2R, or equivalent)

Brake Fluid Type:

DOT 3 or DOT 4 hydraulic brake fluid

Coolant Type:

Ethylene glycol-based antifreeze/coolant (50/50 mixture with distilled water)

Known Issues

Carburetor Clogging:

Common due to fuel residue; requires regular cleaning and proper fuel storage.

Clutch Wear:

Can occur with aggressive riding; clutch plates may require replacement.

Suspension Seals:

Leaking fork seals or rear shock seals can occur with age and use.

Power Valve Sticking:

2-stroke power valves can carbon up and stick, affecting engine performance.

Electrical Connector Corrosion:

Especially in humid environments, connectors can corrode, causing intermittent issues.

📚 Vehicle History

Brand Heritage

Suzuki Atv Legacy:

Suzuki has a long history of innovation in motorsport and ATV development.

Model Evolution

Lt250R Context:

The LT250R was a popular performance-oriented sport ATV, evolving through various iterations.

Production

Production Period:

Produced through the late 1980s and early 1990s, with significant updates between generations.

🏆 Awards & Recognition

Recognitions

Performance Legacy:

The LT250R was a highly regarded and competitive sport ATV in its era, often praised for its handling and power.