🏷️ Basic Information

Make:

Suzuki

Model:

Quad Runner 250 King Quad

Model Variant:

250 King Quad

Engine Displacement Primary:

250cc

Production Years:

1987-1998

👋 Introduction

Segment:

Mid-size utility ATV (All-Terrain Vehicle)

Target Audience:

Recreational riders, farmers, hunters, and utility users seeking a reliable and capable ATV.

Key Competitors:

Honda TRX250 FourTrax, Yamaha Warrior 350, Kawasaki Bayou 300.

Features:

Known for its robust engine, capable suspension, and reliable performance in various terrain conditions. The 'King Quad' designation implied enhanced capability and features over standard models.

📋 Manual Details

Covered Models:

1987-1998 Suzuki Quad Runner 250 King Quad

Covered Years:

1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998

Estimated Page Count:

Approx. 300-400 pages (typical for this era of detailed service manuals)

Type:

Factory Service Manual / Repair Manual

Language:

English

Format:

Digital (PDF)

📖 Manual Coverage

Engine:

Complete engine overhaul, component identification, timing, lubrication, cooling system, starting system, charging system (stator, regulator/rectifier), carburetor tuning and overhaul.

Transmission:

Manual transmission component identification, disassembly, inspection, assembly, gear shifting mechanisms, clutch operation and adjustment.

Drivetrain:

Front and rear drive shafts, differential units, driveshaft U-joints, axle boots, hub assembly maintenance.

Suspension:

Front A-arm suspension, rear swingarm, shock absorber specifications and replacement, bushings, ball joints, steering linkage.

Brakes:

Front and rear drum brake or disc brake (depending on specific year/model variant) overhaul, hydraulic systems, brake fluid specifications, bleeding procedures, brake pad/shoe replacement.

Electrical System:

Wiring diagrams, lighting circuits, ignition system troubleshooting, battery maintenance, starter motor, CDI unit, fault diagnosis.

Fuel System:

Fuel tank, fuel lines, fuel pump (if applicable), carburetor model identification, cleaning, rebuilding, and adjustment procedures.

Cooling System:

Air-cooled engine; includes cooling fins, fan (if applicable), and general air flow management.

Body And Frame:

Frame inspection, body panel removal and installation, seat, fenders, handlebars, and controls.

Maintenance:

Regular scheduled maintenance, oil changes, filter replacements, spark plug service, chain lubrication and adjustment, brake checks, tire pressure.

Troubleshooting:

Systematic diagnostic flowcharts for common and uncommon issues, electrical fault finding, engine performance problems.

Repair:

Step-by-step repair instructions for all major components, including engine rebuilds, transmission repairs, suspension overhauls, and electrical component replacement.

Specifications:

Torque specifications for all fasteners, valve clearances, timing marks, fluid capacities, electrical resistance values, diagnostic readings.

Assembly Disassembly:

Detailed exploded views and step-by-step instructions for the safe and correct disassembly and reassembly of all major systems.

Depth:

Comprehensive: Covers from basic maintenance and adjustments to complete engine and transmission rebuilds, electrical diagnostics, and chassis repairs.

📊 Manual Specifications

File Type:

PDF

Searchability:

Searchable text (OCR processed for ease of use)

Quality:

High-resolution scans, clear text and diagrams

Binding:

N/A (Digital Format)

Paper:

N/A (Digital Format)

⚙️ Engine Specifications

Engine Type:

Air-cooled, 4-stroke, SOHC

Bore X Stroke:

Approx. 66.0 mm x 72.0 mm (typical for this displacement, specific manual to confirm)

Compression Ratio:

Approx. 9.2:1 (typical, specific manual to confirm)

Carburetor Model:

Mikuni VM series (e.g., VM26SS or similar, specific manual to confirm).

Horsepower Estimated:

Approx. 18-20 HP (at crank, estimated, specific manual to confirm)

Torque Estimated:

Approx. 14-16 lb-ft (at crank, estimated, specific manual to confirm)

Fuel Type:

Unleaded gasoline

Fuel Tank Capacity:

Approx. 3.7 US gallons (14 Liters) (typical, specific manual to confirm)

🔧 Transmission

Type:

5-speed manual with Reverse

Clutch Type:

Wet, multi-plate

Drivetrain Type:

2WD (Shaft Drive)

📐 Dimensions

Length:

Approx. 76.8 inches (1950 mm) (typical, specific manual to confirm)

Width:

Approx. 42.9 inches (1090 mm) (typical, specific manual to confirm)

Height:

Approx. 44.1 inches (1120 mm) (typical, specific manual to confirm)

Dry Weight:

Approx. 485 lbs (220 kg) (typical, specific manual to confirm)

Ground Clearance:

Approx. 7.1 inches (180 mm) (typical, specific manual to confirm)

Front Suspension Travel:

Approx. 5.9 inches (150 mm) (typical, specific manual to confirm)

Rear Suspension Travel:

Approx. 6.7 inches (170 mm) (typical, specific manual to confirm)

🛡️ Safety Features

Atv Safety Standards:

Adheres to industry standards for ATVs of its era. Specific NHTSA or equivalent ratings not typically provided for ATVs of this vintage.

Braking System:

Front drum/disc (model dependent), Rear drum/disc (model dependent). Engine braking.

Chassis Design:

Robust steel frame, integrated floorboards, handlebar controls.

💡 Technology Features

Features:

Basic analog instrument cluster: Speedometer, odometer, neutral indicator, high-beam indicator, oil pressure indicator. No advanced infotainment systems.

Features:

No electronic driver assistance features. Relies on rider skill and mechanical controls.

Features:

No connectivity features. Standalone mechanical vehicle.

🔧 Maintenance

Engine Oil Change:

Every 1000 km or 6 months, whichever comes first. (Consult manual for precise intervals).

Air Filter Cleaning:

Every 500 km or as needed based on operating conditions. (Consult manual).

Spark Plug Replacement:

Every 3000 km or annually. (Consult manual).

Gear Oil Change:

Every 2000 km or annually. (Consult manual).

Engine Oil:

SAE 10W-40 API SE or SF (specific manual to confirm exact API rating and viscosity).

Engine Oil Capacity:

Approx. 1.9 US quarts (1.8 Liters) with filter change. (Consult manual).

Transmission Oil:

SAE 80 API GL-4 Gear Oil (specific manual to confirm).

Brake Fluid:

DOT 3 or DOT 4 brake fluid (Consult manual for specific recommendation).

Common Wear Items:

Brake shoes/pads, clutch plates, suspension bushings, carburetor jets (clogging), driveshaft U-joints.

Electrical Components:

Regulator/rectifier failure, stator issues, CDI unit failures are not uncommon in older ATVs.

Carburetor Issues:

Fuel spoilage and jet clogging due to infrequent use or poor fuel quality can lead to starting and running problems.

📚 Vehicle History

Manufacturer:

Suzuki Motor Corporation, known for its engineering prowess in motorcycles and ATVs.

Development:

Evolved from earlier Suzuki Quad Runner models, introducing the 'King Quad' moniker to signify a higher-spec, more capable utility machine.

Manufacturing Origin:

Japan (primary manufacturing location for Suzuki ATVs)

Market Impact:

Established Suzuki as a strong competitor in the utility ATV market, praised for its reliability and performance.

🏆 Awards & Recognition

Historical Acclaim:

Praised by ATV enthusiasts and magazines of the era for its durable construction and reliable performance in utility applications. Specific awards are not typically documented in this format but the model had a strong market reputation.