The Grizzly 660 Auto 4X4, model code YFM660FP, produced in 2002, stands as a testament to robust utility All-Terrain Vehicles (ATVs). This model distinguished itself in the competitive market with its powerful 660cc engine, renowned Ultramatic automatic transmission featuring inherent engine braking, and the versatile On-Command 4WD system with a locking front differential. These key features provided riders with exceptional comfort, performance, and control across a wide range of challenging terrains, solidifying the Grizzly's reputation for reliability and capability. This comprehensive Service Repair Workshop Manual in English is designed to empower owners, mechanics, and technicians with the knowledge required for the full service, repair, maintenance, and troubleshooting of the 2002 Grizzly 660 Auto 4X4. It covers all essential systems, including detailed engine overhaul procedures, transmission maintenance, drivetrain and suspension servicing, brake system repairs, and electrical diagnostics. With clear, step-by-step instructions, torque specifications, clearances, and detailed wiring diagrams, this manual ensures the longevity and optimal performance of your ATV. 🏷️ Basic Information Identification Make: Yamaha Model: Grizzly 660 Model Code: YFM660FP Year: 2002 Vehicle Type: All-Terrain Vehicle (ATV) Trim Level Covered: Auto 4X4 Model Variant Codes Covered: YFM660FP, YFM660FPS 👋 Introduction Market Position Market Position: The Yamaha Grizzly 660 established itself as a premium, robust, and highly capable utility ATV, known for its comfort, power, and 4x4 capabilities in the early 2000s market. Competitive Analysis Competitive Analysis: Competed against other major manufacturers' flagship utility ATVs, such as the Polaris Sportsman, Honda Foreman/Rancher, and Suzuki King Quad, offering a strong balance of features and performance. Key Features Key Features: Key features of the 2002 Grizzly 660 included its powerful 660cc engine, Ultramatic automatic transmission with engine braking, On-Command 4WD system, independent front and rear suspension, and comfortable seating. Manual Value Proposition Manual Value Proposition: This manual is invaluable for owners seeking to perform their own maintenance, diagnostics, and repairs, saving significant costs associated with dealership service and ensuring proper upkeep for longevity. 📋 Manual Details Coverage Areas Coverage Areas: Full service, repair, maintenance, troubleshooting, diagnostics Page Count Page Count: Detailed (specific count not provided, but described as 'detailed file') Manual Type Manual Type: Service Repair Workshop Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine: Complete engine overhaul, internal components, cylinder head, piston, crankshaft, lubrication system, cooling system, ignition system, fuel system, carburetor tuning and repair Transmission: Automatic transmission (CVT), clutch operation, gear case maintenance and repair, drive shafts Drivetrain: 4WD system operation, differential maintenance, CV joints, driveshafts, propeller shafts Suspension: Front and rear suspension components, shock absorbers, control arms, bearings, bushings, alignment Brakes: Front and rear brake systems, hydraulic lines, calipers, brake pads, master cylinders, parking brake Electrical: Wiring diagrams, ignition system, charging system (stator, regulator/rectifier), battery, starter motor, lighting system, instrumentation, fuses, relays Fuel System: Carburetor (Mikuni BSR42), fuel pump, fuel filter, fuel lines, fuel tank Cooling System: Radiator, fan, coolant hoses, thermostat, coolant specifications Frame And Body: Frame inspection and repair, body panels, fenders, seats, racks Wheels And Tires: Wheel specifications, tire pressure, tire replacement Procedures Included Maintenance: Scheduled maintenance, oil changes, filter replacements, spark plug service, air filter cleaning, chain adjustment (if applicable, though this model has shaft drive), lubrication points Troubleshooting: Diagnostic procedures for common issues, symptom-based troubleshooting guides Repair: Detailed step-by-step instructions for component removal, disassembly, inspection, repair, reassembly, and installation Engine Rebuild: Complete engine disassembly, inspection of internal parts, measurement of wear, and reassembly Carburetor Rebuild: Carburetor cleaning, jet replacement, float adjustment, and overall repair Electrical Diagnostics: Testing electrical components, troubleshooting wiring issues using diagrams Suspension Adjustment: Adjusting preload and damping where applicable Brake System Service: Bleeding brake lines, replacing brake pads and fluid Technical Depth Technical Depth: Comprehensive, covering all aspects from basic rider maintenance to in-depth mechanical repairs and diagnostics Diagnostic Codes: Includes diagnostic codes and procedures where applicable Torque Specifications: Detailed torque specifications for all critical fasteners Clearances And Tolerances: Specific measurements for component clearances and wear tolerances Wiring Diagrams: High-quality, detailed wiring diagrams for electrical system troubleshooting Illustrations: Illustrated with clear step-by-step instructions, including diagrams and exploded views 📊 Manual Specifications File Format File Format: PDF Searchable Text: Likely searchable (standard for quality PDF manuals) Print Quality Print Quality: Designed for clear digital viewing and printing Binding Type Binding Type: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) Completeness Completeness: Complete workshop manual covering all aspects of the specified models ⚙️ Engine Specifications Primary Engine Engine Type: Four-stroke, SOHC, liquid-cooled, parallel-twin Displacement: 660 cc Bore X Stroke: 95.0 mm x 90.3 mm Compression Ratio: 9.1:1 Carburetor: Mikuni BSR42, single Ignition: DC-CDI (Digital Capacitor Discharge Ignition) Starter: Electric Performance Horsepower: Approximately 45-48 hp (estimate, actual may vary) Torque: Approximately 42-45 lb-ft (estimate, actual may vary) Fuel System Fuel Tank Capacity: 4.2 US gal (16 L) Fuel Type: Unleaded gasoline, 87 octane or higher 🔧 Transmission...