This manual provides comprehensive service information for the 2004-2008 utility ATVs and the 2004-2008 utility ATVs. These robust utility ATVs, known for their reliability and off-road capability, are designed for a variety of tasks, from work to recreation. The model, featuring a 348 cc engine and rear-wheel drive, offers agile performance, while the model, equipped with a 386 cc engine and selectable 4WD, delivers enhanced traction and power for more demanding conditions. Both models benefit from engineering quality, ensuring dependable operation across different terrains and uses. This extensive manual covers all essential aspects of maintaining and repairing your ATV. It includes detailed procedures for engine service, drivetrain maintenance, chassis and suspension adjustments, and electrical system diagnostics. You will find step-by-step instructions for routine maintenance, troubleshooting common issues, and performing component rebuilds. Technical specifications, fluid recommendations, and safety guidelines are also thoroughly documented, making this an indispensable resource for owners and technicians alike to ensure optimal performance and longevity of the models. 🏷️ Basic Information Identification Make: Yamaha Model: YFM400 Kodiak Generation Model Years Covered: 2004, 2005, 2006, 2007, 2008 Codes Chassis Codes Bruin: YFM350FW, YFM350FX (indicative, specific VIN decoding recommended) Chassis Codes Kodiak: YFM400FHW, YFM400FHX (indicative, specific VIN decoding recommended) 👋 Introduction Market Position Target Audience: Yamaha ATV owners and independent repair shops seeking detailed service information Competitive Analysis Manual Provider: GearHead Manuals Key Features Convenience: Instant downloadable PDF, usable on smartphones for trailside repairs Content Scope: Covers all aspects of repair, maintenance, and troubleshooting for specified models 📋 Manual Details Coverage Areas Applicable Models: 2004-2008 Yamaha YFM350 Bruin 4x2 ATV, 2004-2008 Yamaha YFM400 Kodiak 4x4 ATV Page Count Estimated Page Count: Comprehensive (exact number not specified, but implies full workshop coverage) Manual Type Type: Repair Manual / Service Manual / Workshop Manual / Owner's Manual / Parts Catalog (multi-faceted) Language Language: English (presumed, based on common industry practice for manuals sold in English-speaking markets) Format Format: Downloadable PDF 📖 Manual Coverage Systems Covered Engine: Engine removal/installation, engine specifications, lubrication, cooling, fuel system, intake/exhaust Drivetrain: Transmission, drive chain, sprockets, differential (Kodiak 4x4) Chassis And Suspension: Steering system, shocks, suspension components Electrical: Electrical system diagnostics, wiring diagrams (likely), components Bodywork And Cosmetics: Body panels, plastics, general appearance maintenance Procedures Included Maintenance: Routine maintenance, service intervals, fluid changes, filter replacements Troubleshooting: Advanced troubleshooting guides, diagnostic procedures, common issues Repair: Detailed step-by-step repair instructions for various components Rebuilds: Engine rebuild, transmission rebuild, differential rebuild (likely) Technical Depth Depth: Comprehensive, covering basic to advanced repair and diagnostics 📊 Manual Specifications File Format File Type: PDF Accessibility: Instant download, no zip files, plain simple easy to use Print Quality Printability: Printable pages for on-site use Binding Type Binding: N/A (Digital PDF) Paper Type Paper Quality: N/A (Digital PDF) Policy Loss Or Damage Policy: Lifetime Protection Policy for replacements if lost or damaged ⚙️ Engine Specifications Primary Engine Engine Type Bruin: Air-cooled, 4-stroke, SOHC, 2-valve, single-cylinder Engine Type Kodiak: Air-cooled, 4-stroke, SOHC, 4-valve, single-cylinder Displacement Bruin: 348 cc (21.2 cu. in.) Displacement Kodiak: 386 cc (23.5 cu. in.) Performance Horsepower Kodiak Approx: Estimated 22-25 hp (specific dyno data varies) Torque Kodiak Approx: Estimated 23-26 lb-ft (specific dyno data varies) Fuel System Fuel Delivery Bruin: Carburetor (Mikuni BSR33, likely) Fuel Delivery Kodiak: Carburetor (likely Mikuni BSR33 or similar) Fuel Type: Unleaded gasoline Lubrication Oil Type Recommendation: Yamalube 4T SAE 20W-40 or SAE 10W-30 API SG or higher (refer to manual for precise specification) Cooling Cooling System: Air-cooled 🔧 Transmission Standard Transmission Type: Automatic (Yamaha Ultramatic®) Drive System Bruin: 2WD (Rear Wheel Drive) Drive System Kodiak: 4WD (Selectable 4WD with 2WD option) Optional Gear Selection: High, Low, Neutral, Reverse, Park Features Final Drive: Shaft drive (Kodiak 4x4), Chain drive (Bruin likely as well, manual will specify) Belt Type: V-belt, centrifugal clutch 📐 Dimensions Exterior Length Approx: Kodiak: ~81.1 inches, Bruin: ~76.4 inches (specifics vary, consult manual) Width Approx: Kodiak: ~45.3 inches, Bruin: ~42.5 inches (specifics vary, consult manual) Height Approx: Kodiak: ~45.7 inches, Bruin: ~44.1 inches (specifics vary, consult manual) Weights Dry Weight Bruin: Approx. 507 lbs (230 kg) Dry Weight Kodiak: Approx. 569 lbs (258 kg) Towing Capacity: 1,102 lbs (500 kg) (verify specific model, consult manual) Front Rack Capacity: 55 lbs (25 kg) Rear Rack Capacity: 198 lbs (90 kg) 🛡️ Safety Features Ratings Rollover Protection: N/A (ATVs do not have roll cages or seatbelts as standard safety features; safe operating practices are paramount) Active Features Braking System: Hydraulic disc brakes, front and rear (specific configuration detailed in manual) Passive Features Lighting: Headlights, taillight/stoplight 💡 Technology Features Infotainment Infotainment System: N/A (Basic utility ATV, no integrated infotainment) Driver Assistance Driver Assistance Features: N/A Connectivity Connectivity Options: N/A 🔧 Maintenance Service Intervals Oil Change Interval: Every 1,000 km (600 mi) or 6 months (refer to manual for exact schedule) Air Filter Cleaning: As needed based on operating...