The Suzuki LT250R Quad Racer is a high-performance all-terrain vehicle (ATV) renowned for its powerful two-stroke engine, long-travel suspension, and lightweight design, making it a popular choice for aggressive trail riding and racing. Produced between 1987 and 1992, this sport ATV was engineered to deliver exceptional off-road capability and a thrilling riding experience. Its robust construction and focus on performance established it as a significant model in the evolution of sport ATVs, directly competing with other leading machines of its era. This comprehensive workshop service repair manual provides detailed information for the Suzuki LT250R Quad Racer. It covers essential maintenance procedures, troubleshooting guides, technical specifications, and repair instructions for all major systems, including the engine, transmission, fuel, ignition, cooling, exhaust, frame, suspension, brakes, wheels, tires, and electrical systems. The manual is designed to assist owners, mechanics, and technicians in maintaining, diagnosing, and repairing the vehicle, ensuring its optimal performance and longevity. 🏷️ Basic Information Identification Make: Suzuki Model: LT250R Quad Racer Vehicle Type: All-Terrain Vehicle (ATV) Product Type: Workshop Service Repair Manual Codes Model Codes: LT250R 👋 Introduction Market Position Market Position: High-performance sport ATV, popular in its era for racing and aggressive trail riding. Competitive Analysis Competitors: Yamaha Warrior 250, Honda TRX250R, Kawasaki Mojave 250. Key Features Key Features: Powerful two-stroke engine, long-travel suspension, lightweight design, capable off-road performance. 📋 Manual Details Coverage Areas Applicable Years: 1987, 1988, 1989, 1990, 1991, 1992 Page Count Estimated Page Count: Extensive (typically 300+ pages for comprehensive service manuals) Manual Type Manual Type: Complete Workshop Service Repair Manual Language Language: English Format Format: Downloadable PDF 📖 Manual Coverage Systems Covered Engine: Complete overhaul, disassembly, assembly, diagnosis, troubleshooting, tuning. Transmission: Clutch, gearbox, chain drive, lubrication, removal, installation, repair. Fuel System: Carburetor (Mikuni VM28SS typical), fuel pump, fuel lines, tank, cleaning, adjustment, troubleshooting. Ignition System: CDI, spark plug, coil, timing, diagnosis. Cooling System: Liquid cooling, radiator, fan, hoses, thermostat, fluid specifications. Exhaust System: Pipe, muffler, inspection, replacement. Frame And Suspension: Frame inspection, front forks (Telescopic), rear suspension (Suzuki High-Performance Absorbing-System - SHS, Mono-shock), swingarm, bearings, adjustments, rebuilds. Brakes: Front and rear disc brakes, hydraulic system, caliper, master cylinder, brake lines, pads, fluid specifications, bleeding procedures. Wheels And Tires: Wheel hub, bearings, tire pressure, sizes, replacement. Electrical System: Wiring diagrams, lighting, battery, stator, rectifier/regulator, fuses, troubleshooting. Bodywork And Plastics: Fenders, seat, handlebars, controls, decals, removal and installation. Procedures Included Maintenance: Regular servicing, oil changes, filter replacement, spark plug checks, chain adjustment, brake adjustments, coolant checks. Troubleshooting: Diagnostic charts, common problems and solutions for all major systems. Repair: Step-by-step instructions for component removal, disassembly, inspection, repair, and reassembly. Rebuilds: Engine rebuild, carburetor overhaul, brake caliper rebuild, suspension component rebuild. Technical Specifications: Torque values, clearances, fluid capacities, electrical resistance values, engine tuning specifications. Wiring Diagrams: Detailed, comprehensive wiring schematics for all electrical components. Technical Depth Depth Of Coverage: Comprehensive from basic maintenance to full engine and transmission rebuilds. Includes diagnostic procedures and specifications. 📊 Manual Specifications File Format File Format: PDF Print Quality Print Quality: High resolution, suitable for printing individual pages or the entire manual. Binding Type Binding Type: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) Searchability Searchability: Text-searchable PDF for quick information retrieval. ⚙️ Engine Specifications Primary Engine Engine Type: 2-stroke, liquid-cooled, single-cylinder Displacement: 246 cc (15.0 cu. in.) Bore X Stroke: 66.0 mm x 72.0 mm (2.60 in x 2.83 in) Compression Ratio: 7.0:1 (Typical, may vary slightly) Carburetor: Mikuni VM28SS Performance Horsepower: Approximately 25-30 HP (Estimates vary, manual will provide precise figures) Torque: Not explicitly stated in product description, but the manual will detail specific torque figures. Fuel System Fuel Type: Unleaded gasoline (typically 87-91 octane recommended) Fuel Mixture: Pre-mix (gasoline and 2-stroke oil ratio specified in manual, often 20:1 or 32:1 depending on oil type). Lubrication Engine Oil Type: Suzuki recommends specific 2-stroke engine oil. Manual will detail API classifications and specifications. Oil Injection: Yes, equipped with an oil injection system. Manual will detail oil type and tank capacity. 🔧 Transmission Standard Transmission Type: 6-speed manual with manual clutch Optional Optional Features: N/A (Standard configuration) Features Final Drive: O-ring sealed chain Clutch Type: Wet, multi-plate Transmission Oil Type: The manual will specify Suzuki's recommended gear oil or equivalent for the transmission and clutch lubrication. 📐 Dimensions Exterior Overall Length: Approximately 1820 mm (71.7 in) Overall Width: Approximately 1210 mm (47.6 in) Overall Height: Approximately 1070 mm (42.1 in) Wheelbase: Approximately 1255 mm (49.4 in) Weights Dry Weight: Approximately 189 kg (417 lbs) Fuel Tank Capacity: Approximately 10.0 L (2.6 US gal) Ground Clearance: Approximately 205 mm (8.1 in) 🛡️ Safety Features Ratings Safety Ratings: ATVs are not typically rated by consumer safety organizations like NHTSA or IIHS. Operator responsibility and adherence to manual guidelines are critical for safe operation. Active Features Active Safety Features: Powerful front and rear disc brakes...