🏷️ Basic Information Identification Make: Yamaha Model: YFM350 Bruin / Grizzly, YFM400 Kodiak Model Variants: YFM350 Bruin Auto 4x4, YFM350 Grizzly Auto 4x4, YFM400 Kodiak 4WD Production Years Covered: 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Codes Manual Product Code: Likely internal sales code, not provided in product data. 👋 Introduction Market Position Segment: Mid-size utility ATVs, known for their reliability and versatility in recreational and utility applications. Competitive Analysis Key Competitors: Polaris Sportsman, Honda FourTrax/Rancher, Suzuki KingQuad, Arctic Cat 400/500 series. Key Features Vehicle Strengths: Robust 4WD systems, reliable single-cylinder engines, comfortable automatic transmissions, and durable construction suited for various terrains. Manual Value Proposition Benefit To Owner: Empowers owners with the knowledge to perform maintenance, diagnose issues, and undertake repairs, saving time and money on professional servicing. 📋 Manual Details Coverage Areas General Coverage: Comprehensive service and repair for all specified Yamaha ATV models and years. Page Count Estimated Page Count: While not explicitly stated, factory service manuals for this era and complexity typically range from 500 to 1000+ pages. Assuming a comprehensive factory manual. Manual Type Type: Full Service and Repair Workshop Manual Language Language: English (Standard for factory manuals of this origin, though regional variations exist). Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine: Engine overhaul, lubrication system, cooling system, fuel system, ignition system, starting system, exhaust system, emissions control. Transmission: Automatic transmission operation, maintenance, troubleshooting, and repair, including torque converter and final drive. Drivetrain: 4WD system operation and maintenance, front and rear differential service, driveshafts, CV joints, and wheel hubs. Suspension: Front and rear suspension components, shock absorbers, springs, bushings, steering knuckles, and alignment procedures. Brakes: Hydraulic brake system, brake calipers, master cylinder, brake lines, brake pads, brake discs, bleeding procedures, parking brake. Electrical: Wiring diagrams, lighting system, battery, charging system (stator, regulator/rectifier), starter motor, electrical components identification and testing, fuses, relays. Bodywork: Frame inspection and repair, plastics, body panels, fenders, racks, seat, handlebars, and controls. Fuel And Emissions: Carburetor service and adjustment (for relevant models), fuel pump, fuel tank, emissions control systems (e.g., PAIR system). Procedures Included Routine Maintenance: Oil changes, filter replacements, spark plug service, air filter cleaning/replacement, chain adjustment (if applicable), lubrication points. Troubleshooting: Diagnostic flowcharts, common problems and their solutions, symptom-based troubleshooting guides. Repair And Overhaul: Detailed step-by-step instructions for engine disassembly, reassembly, transmission repair, suspension component replacement, brake system overhaul, and electrical component repair. Torque Specifications: Precise torque values for all critical fasteners throughout the vehicle. Special Tools: Identification and usage of specialized tools required for specific repair procedures. Technical Depth Depth: Complete factory-level diagnostics, repair, and overhaul procedures, suitable for professional technicians and advanced DIY mechanics. 📊 Manual Specifications File Format File Type: PDF (Portable Document Format) Print Quality Quality: High-resolution, designed for clear viewing and printing of diagrams, schematics, and text. Binding Type Binding: Not applicable (Digital download). Paper Type Paper Type: Not applicable (Digital download). ⚙️ Engine Specifications Primary Engine Engine Type Yfm350: 348cc, SOHC, 4-stroke, single-cylinder, liquid-cooled (Bruin) or air-cooled (Grizzly models may vary, often air-cooled with oil cooler). Engine Type Yfm400: 386cc, SOHC, 4-stroke, single-cylinder, liquid-cooled (Kodiak). Bore X Stroke Yfm350: Refer to manual for precise specifications, typically around 82mm x 67.2mm (may vary slightly). Bore X Stroke Yfm400: Refer to manual for precise specifications, typically around 84.5mm x 70mm. Performance Horsepower Approximate: YFM350: 18-20 HP; YFM400: 22-24 HP (These are approximations; actual figures depend on specific model tuning and dyno testing). Torque Approximate: YFM350: 20-22 ft-lbs; YFM400: 23-25 ft-lbs (Approximate, refer to manual for exact specs). Fuel System Carburetor Yfm350: Mikuni BNS32 or similar (specific model dependent). Carburetor Yfm400: Mikuni BNS34 or similar (specific model dependent). Fuel Type: Unleaded gasoline, minimum octane rating typically 87 RON. Cooling System Cooling Method: Liquid-cooled (YFM400 Kodiak, some YFM350 variants) or Air-cooled with Oil Cooler (some YFM350 Grizzly variants). 🔧 Transmission Standard Transmission Type: Automatic (CVT - Continuously Variable Transmission) with High/Low range and Reverse. Optional Optional Transmissions: None offered for these specified models/years. Features Drive Modes: 2WD, 4WD, 4WD with differential lock (specific implementation varies by model and year). Belt Maintenance: CVT belt inspection, adjustment (if applicable), and replacement procedures are detailed in the manual. Fluid Specifications Transmission Fluid Type: Yamaha's recommended ATV-specific automatic transmission fluid or equivalent. Refer to manual for exact part number and specifications (e.g., SAE 20W-40 or 10W-40 motorcycle/ATV oil often used). 📐 Dimensions Exterior Length Approximate: 77-80 inches (1950-2030 mm) (Varies by model). Width Approximate: 42-45 inches (1070-1140 mm) (Varies by model). Height Approximate: 44-47 inches (1120-1190 mm) (Varies by model). Weights Dry Weight Approximate: 560-600 lbs (254-272 kg) (Varies by model). Ground Clearance Approximate: 8-10 inches (200-255 mm) (Varies by model). Cargo Front Rack Capacity Approximate: 99 lbs (45 kg). Rear Rack Capacity Approximate: 176 lbs (80 kg). Towing Capacity Approximate: 1000-1200 lbs (450-544 kg). 🛡️ Safety Features Ratings...