The Suzuki Quad Runner 250 series, encompassing models like the LTF250, LT4WD, and LTF4WDX, represents a robust line of mid-size utility All-Terrain Vehicles (ATVs) produced from 1987 to 1998. These ATVs were engineered to provide reliable performance for a variety of tasks, including recreational trail riding, light agricultural work, and general utility applications. Known for their durable air-cooled, single-cylinder engines, a versatile 4-speed semi-automatic transmission with an automatic clutch, and the availability of 2WD and selectable 4WD drivetrains, the Quad Runner 250 series offered a practical and capable solution that competed effectively in its market segment, earning a reputation for ruggedness and value. This comprehensive workshop service repair manual offers detailed guidance for the mechanical, electrical, and bodywork systems of the Suzuki LTF250 Quad Runner 250 series. Covering over 500 pages, it provides in-depth information on engine overhaul, transmission and driveline maintenance, chassis and suspension servicing, and electrical system diagnostics, including comprehensive wiring diagrams. The manual includes step-by-step repair procedures, maintenance schedules, troubleshooting guides, and technical specifications, equipping owners, mechanics, and technicians with the necessary knowledge to maintain, diagnose, and repair these ATVs effectively, ensuring their longevity and optimal performance. 🏷️ Basic Information Identification Make: Suzuki Model: Quad Runner 250 Model Variants: LTF250, LT4WD, LTF4WDX Applicable Years: 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998 Codes Chassis Codes: LTF250, LTF250F 👋 Introduction Market Position Quad Segment Role: The Suzuki Quad Runner 250 series, particularly the LTF250, LT4WD, and LTF4WDX models, were positioned as reliable and capable mid-size utility ATVs, well-suited for recreational trail riding, light farm work, and general utility purposes. Competitive Analysis Key Competitors: Competed against similar offerings from Honda (e.g., TRX250 FourTrax), Yamaha (e.g., YFM250 Moto-4), and Kawasaki (e.g., KLF220 Bayou). Key Features Drivetrain Options: Offered both 2WD and selectable 4WD (LT4WD, LTF4WDX) variants, providing versatility for different terrain conditions. Transmission Type: Featured a robust 4-speed semi-automatic transmission with an automatic clutch, simplifying operation for a wide range of riders. Engine Configuration: Powered by a torquey, air-cooled, single-cylinder engine, known for its durability and ease of maintenance. 📋 Manual Details Coverage Areas Manual Coverage Scope: Comprehensive mechanical, electrical, and bodywork systems of the Suzuki LTF250 Quad Runner 250 series. Page Count Estimated Page Count: 500+ Manual Type Manual Classification: Complete Workshop Service Repair Manual Language Primary Language: English Format Digital Format: PDF (Downloadable) 📖 Manual Coverage Systems Covered Engine And Powertrain: Engine overhaul, cooling system, lubrication system, fuel system, ignition system, exhaust system, transmission (4-speed, automatic clutch), driveline, final drive. Chassis And Suspension: Front suspension (MacPherson strut), rear suspension (swingarm, single shock absorber), steering system, wheels, tires, brakes (front disc, rear drum). Electrical System: Battery, charging system (stator, regulator/rectifier), starting system, lighting system (headlights, taillight, brake light), instrumentation, wiring diagrams, fuses, relays. Bodywork And Plastics: Frame, body panels, fenders, seat, handlebars, controls, plastics care and repair. Procedures Included Maintenance Tasks: Regular inspection, oil changes, filter replacements, spark plug service, brake adjustments, chain maintenance, lubrication points. Troubleshooting Guides: Step-by-step diagnostic procedures for common and uncommon issues, fault finding charts, symptom-based troubleshooting. Repair Procedures: Detailed instructions for disassembly, inspection, repair, and reassembly of all major components and systems. Adjustment And Calibration: Carburetor tuning, valve clearance adjustment, brake bleeding, clutch adjustment. Technical Depth Diagnostic Level: Advanced diagnostics, including component testing, electrical circuit analysis, and fuel system analysis. Rebuild Capability: Complete engine rebuild procedures, transmission overhaul, and suspension component refurbishment. Special Tools: Identification of required special tools for specific repair procedures. 📊 Manual Specifications File Format Document Type: Digital Document (PDF) Print Quality Resolution And Clarity: High-resolution images, clear diagrams, and readable text optimized for digital viewing and printing. Binding Type Digital Binding Equivalent: Navigable sections with bookmarks and hyperlinks (typical for quality PDF manuals). Paper Type Digital Paper Equivalent: Optimized for screen display and standard printer paper. ⚙️ Engine Specifications Primary Engine Engine Type: Air-cooled, 4-stroke, SOHC, single-cylinder Displacement: 246 cc (250 class) Bore X Stroke: Approximately 69.0 mm x 64.4 mm (specifics may vary slightly by exact sub-model) Compression Ratio: Approximately 9.2:1 Performance Horsepower: Estimated 15-18 HP (at approximately 6500 RPM, varies by year/tune) Torque: Estimated 14-16 lb-ft (at approximately 4500 RPM, varies by year/tune) Fuel System Carburetor Type: Mikuni VM series (e.g., VM30SH or similar single downdraft carburetor) Fuel Type: Unleaded gasoline, 87 octane (minimum) 🔧 Transmission Standard Transmission Type: Constant mesh, 4-speed sequential, semi-automatic with automatic clutch Reverse Gear: Yes (integrated) Optional Drivetrain Options: 2WD (LTF250) and 4WD (LT4WD, LTF4WDX) with selectable 2WD/4WD engagement Features Clutch Type: Automatic centrifugal clutch Final Drive: Shaft drive (front and rear) 📐 Dimensions Exterior Length: Approx. 74.2 inches (1885 mm) Width: Approx. 41.5 inches (1055 mm) Height: Approx. 42.9 inches (1090 mm) Wheelbase: Approx. 47.2 inches (1200 mm) Cargo Front Rack Capacity: Approx. 20 kg (44 lbs) Rear Rack Capacity: Approx. 40 kg (88 lbs) Weights Dry Weight:...
The Suzuki Quad Runner 250 series, encompassing models like the LTF250, LT4WD, and LTF4WDX, represents a robust line of mid-size utility All-Terrain Vehicles (ATVs) produced from 1987 to 1998. These ATVs were engineered to provide reliable performance for a variety of tasks, including recreational trail riding, light agricultural work, and general utility applications. Known for their durable air-cooled, single-cylinder engines, a versatile 4-speed semi-automatic transmission with an automatic clutch, and the availability of 2WD and selectable 4WD drivetrains, the Quad Runner 250 series offered a practical and capable solution that competed effectively in its market segment, earning a reputation for ruggedness and value.
This comprehensive workshop service repair manual offers detailed guidance for the mechanical, electrical, and bodywork systems of the Suzuki LTF250 Quad Runner 250 series. Covering over 500 pages, it provides in-depth information on engine overhaul, transmission and driveline maintenance, chassis and suspension servicing, and electrical system diagnostics, including comprehensive wiring diagrams. The manual includes step-by-step repair procedures, maintenance schedules, troubleshooting guides, and technical specifications, equipping owners, mechanics, and technicians with the necessary knowledge to maintain, diagnose, and repair these ATVs effectively, ensuring their longevity and optimal performance.
The Suzuki Quad Runner 250 series, particularly the LTF250, LT4WD, and LTF4WDX models, were positioned as reliable and capable mid-size utility ATVs, well-suited for recreational trail riding, light farm work, and general utility purposes.
Competitive Analysis
Key Competitors:
Competed against similar offerings from Honda (e.g., TRX250 FourTrax), Yamaha (e.g., YFM250 Moto-4), and Kawasaki (e.g., KLF220 Bayou).
Key Features
Drivetrain Options:
Offered both 2WD and selectable 4WD (LT4WD, LTF4WDX) variants, providing versatility for different terrain conditions.
Transmission Type:
Featured a robust 4-speed semi-automatic transmission with an automatic clutch, simplifying operation for a wide range of riders.
Engine Configuration:
Powered by a torquey, air-cooled, single-cylinder engine, known for its durability and ease of maintenance.
📋 Manual Details
Coverage Areas
Manual Coverage Scope:
Comprehensive mechanical, electrical, and bodywork systems of the Suzuki LTF250 Quad Runner 250 series.
Advanced diagnostics, including component testing, electrical circuit analysis, and fuel system analysis.
Rebuild Capability:
Complete engine rebuild procedures, transmission overhaul, and suspension component refurbishment.
Special Tools:
Identification of required special tools for specific repair procedures.
📊 Manual Specifications
File Format
Document Type:
Digital Document (PDF)
Print Quality
Resolution And Clarity:
High-resolution images, clear diagrams, and readable text optimized for digital viewing and printing.
Binding Type
Digital Binding Equivalent:
Navigable sections with bookmarks and hyperlinks (typical for quality PDF manuals).
Paper Type
Digital Paper Equivalent:
Optimized for screen display and standard printer paper.
⚙️ Engine Specifications
Primary Engine
Engine Type:
Air-cooled, 4-stroke, SOHC, single-cylinder
Displacement:
246 cc (250 class)
Bore X Stroke:
Approximately 69.0 mm x 64.4 mm (specifics may vary slightly by exact sub-model)
Compression Ratio:
Approximately 9.2:1
Performance
Horsepower:
Estimated 15-18 HP (at approximately 6500 RPM, varies by year/tune)
Torque:
Estimated 14-16 lb-ft (at approximately 4500 RPM, varies by year/tune)
Fuel System
Carburetor Type:
Mikuni VM series (e.g., VM30SH or similar single downdraft carburetor)
Fuel Type:
Unleaded gasoline, 87 octane (minimum)
🔧 Transmission
Standard
Transmission Type:
Constant mesh, 4-speed sequential, semi-automatic with automatic clutch
Reverse Gear:
Yes (integrated)
Optional
Drivetrain Options:
2WD (LTF250) and 4WD (LT4WD, LTF4WDX) with selectable 2WD/4WD engagement
Features
Clutch Type:
Automatic centrifugal clutch
Final Drive:
Shaft drive (front and rear)
📐 Dimensions
Exterior
Length:
Approx. 74.2 inches (1885 mm)
Width:
Approx. 41.5 inches (1055 mm)
Height:
Approx. 42.9 inches (1090 mm)
Wheelbase:
Approx. 47.2 inches (1200 mm)
Cargo
Front Rack Capacity:
Approx. 20 kg (44 lbs)
Rear Rack Capacity:
Approx. 40 kg (88 lbs)
Weights
Dry Weight:
Approx. 218 kg (481 lbs) for 4WD models
Fuel Tank Capacity:
Approx. 9.0 L (2.4 US gal)
🛡️ Safety Features
Ratings
Atv Safety Standards:
Compliant with ANSI standards for ATVs (as per typical manufacturer statements of the era).
Active Features
Braking System:
Front: Dual hydraulic disc brakes. Rear: Single hydraulic disc brake (or drum on some early models, check specific year). Independent front brakes for enhanced control.
Throttle Limiter:
Adjustable throttle limiter (thumb throttle) for controlled acceleration.
Passive Features
Lighting:
Halogen headlights, taillight, and brake light for visibility.
Ergonomics:
Handlebar-mounted controls and comfortable seating position designed for rider control.
💡 Technology Features
Infotainment
Display Features:
Basic instrument cluster including speedometer, odometer, neutral indicator, and high beam indicator.
Driver Assistance
Traction Control:
None inherent to the design, relies on rider skill and 4WD system.
Connectivity
Charging Port:
Typically no integrated USB or 12V accessory ports; manual may cover installation of aftermarket accessories.
🔧 Maintenance
Service Intervals
Engine Oil Change:
Every 1000 km (600 miles) or 6 months, whichever comes first.
Air Filter Cleaning Or Replacement:
Every 500 km (300 miles) or more frequently in dusty conditions.
Spark Plug Replacement:
Every 3000 km (2000 miles) or annually.
Valve Clearance Check:
Every 3000 km (2000 miles).
Fluid Specifications
Engine Oil Type:
API SE, SF or SG grade SAE 10W-30 or 20W-40 motorcycle specific engine oil (check manual for exact recommended viscosity based on temperature).
Engine Oil Capacity:
Approx. 1.7 L (1.8 US qt) with filter change.
Brake Fluid Type:
DOT 3 or DOT 4 hydraulic brake fluid.
Transmission Fluid Type:
API GL-4 SAE 80W-90 gear oil for the transmission and final drive (separate reservoirs).
Known Issues
Carburetor Clogging:
Common with older ATVs due to fuel varnish; requires periodic cleaning and adjustment.
Recoil Starter Wear:
The pull-start mechanism can wear over time; the electric start system is generally more reliable.
Suspension Bushings:
Wear in suspension bushings and ball joints can lead to steering looseness and noise.
Electrical Connector Corrosion:
Exposure to elements can cause corrosion in electrical connectors, leading to intermittent faults.
📚 Vehicle History
Brand Heritage
Suzuki Atv Legacy:
Suzuki has a long-standing reputation for producing durable and capable ATVs, with the Quad Runner line being foundational to their success in the off-road market.
Model Evolution
Quad Runner 250 Development:
The 250cc Quad Runner series represented a significant step in Suzuki's ATV development, offering a balance of power, utility, and 4WD capability that appealed to a broad consumer base.
Production
Manufacturing Region:
Primarily manufactured in Japan by Suzuki Motor Corporation.
Production Run:
This generation of the Quad Runner 250 was produced from 1987 through 1998, indicating a successful and well-received platform.
🏆 Awards & Recognition
Recognitions
Market Perception:
The Quad Runner 250 series was generally well-regarded for its ruggedness, reliability, and value for money within its segment.
Ratings
Durability Assessment:
Recognized for its durable powertrain and chassis, making it a popular choice for extended use and as a reliable workhorse.
Certifications
Emission Standards:
Compliant with applicable emission standards for the years of production in its primary markets.
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