🏷️ Basic Information Identification Make: Yamaha Model: Bruin Model Variant: 350 / 400 Model Years Covered: 2004, 2005, 2006 👋 Introduction Market Position Target User: ATV enthusiasts, DIY mechanics, repair shops, and owners seeking to maintain or repair their Yamaha Bruin. Value Proposition: Provides comprehensive, authoritative technical guidance to enable owners to perform a wide range of maintenance and repair tasks, saving on labor costs and ensuring proper vehicle function. Competitive Analysis Competitor Manuals: This manual competes with factory service manuals, other aftermarket repair guides, and online forums by offering a consolidated, detailed, and officially recognized source of information. Key Features Detail Level: Extremely high level of detail, covering everything from routine checks to complete overhauls. Organization: Features a comprehensive table of contents for easy navigation and quick access to specific information. Illustrations Diagrams: Implied to contain numerous illustrations and diagrams to aid in understanding complex procedures. 📋 Manual Details Coverage Areas Manual Type: Service Repair Manual Language: English Format: PDF Page Count: Hundreds of pages (specific count not provided in product description) 📖 Manual Coverage Systems Covered Engine: Detailed diagnostics, repair, rebuild procedures for all engine components, including top-end, bottom-end, cooling system, lubrication system, and ignition system. Transmission: Coverage for transmission inspection, disassembly, reassembly, adjustments, and fluid specifications. Drivetrain: Front and rear differential service, drive shafts, CV joints, and wheel hub maintenance. Suspension: Front and rear suspension component inspection, replacement, and alignment procedures. Brakes: Brake system diagnostics, master cylinder, caliper, rotor, brake line, and bleeding procedures. Steering: Steering column, tie rods, rack and pinion, and steering column adjustments. Electrical System: Battery, charging system (stator, regulator/rectifier), starting system, lighting, instrumentation, and wiring diagrams. Fuel System: Carburetor service and adjustment, fuel pump, fuel lines, and fuel tank maintenance. Cooling System: Radiator, fan, thermostat, water pump, and coolant specifications. Exhaust System: Muffler, exhaust pipes, and gasket replacement. Body And Frame: Chassis inspection, body panel removal and installation, seat, and rack components. Procedures Included Maintenance: Scheduled maintenance, oil changes, filter replacements, lubrication points, and general upkeep. Troubleshooting: Diagnostic charts for common problems and their solutions across all vehicle systems. Repair: Step-by-step repair instructions for virtually every component and system on the ATV. Rebuild: Detailed procedures for complete engine and transmission rebuilds. Disassembly Reassembly: Comprehensive guidance for taking apart and putting back together all major vehicle assemblies. Wiring Diagrams: High-quality, detailed wiring schematics for accurate electrical troubleshooting and repair. Technical Depth Diagnostic Tools: Information on required tools, specialized equipment, and diagnostic procedures. Torque Specifications: Precise torque values for all fasteners and critical components. Clearances And Tolerances: Specifications for critical component clearances and wear tolerances. Service Limits: Information on component wear limits and when parts should be replaced. Performance Tuning: While not primarily a tuning manual, it provides the baseline specifications for proper engine operation. 📊 Manual Specifications File Format File Format: PDF (Portable Document Format) Searchability: Likely text-searchable PDF, enabling quick information retrieval. Print Quality: High-quality digital reproduction, designed for clear printing of diagrams and text. Binding Type Binding Type: Not applicable (Digital PDF download) Paper Type Paper Type: Not applicable (Digital PDF download) ⚙️ Engine Specifications Primary Engine Engine Type 350: 348cc, 4-stroke, SOHC, 2-valve, air-cooled, single-cylinder Engine Type 400: 386cc, 4-stroke, SOHC, 2-valve, liquid-cooled, single-cylinder Bore X Stroke 350: 83 mm x 64.5 mm (approximate, requires manual verification) Bore X Stroke 400: 94 mm x 69 mm (approximate, requires manual verification) Compression Ratio 350: 9.2:1 (typical, requires manual verification) Compression Ratio 400: 8.8:1 (typical, requires manual verification) Performance Horsepower 350: Approx. 17-20 HP (requires manual verification) Horsepower 400: Approx. 21-24 HP (requires manual verification) Torque 350: Approx. 18-20 lb-ft (requires manual verification) Torque 400: Approx. 23-25 lb-ft (requires manual verification) Fuel System Fuel Delivery 350: Mikuni BSR33 carburetor Fuel Delivery 400: Mikuni BSR33 carburetor Fuel Type: Unleaded gasoline, minimum 87 octane 🔧 Transmission Standard Transmission Type: Automatic (Ultramatic®), V-belt, automatic transmission Gear Selection: High, Low, Neutral, Reverse Optional Transmission Options: N/A (all models in this range feature the Ultramatic® transmission) Features Drive System: 2WD/4WD selectable, shaft drive Final Drive: Sealed chain, sprockets, and drive shafts 📐 Dimensions Exterior Length: Approx. 76.4 in (1940 mm) (requires manual verification) Width: Approx. 44.3 in (1125 mm) (requires manual verification) Height: Approx. 44.1 in (1120 mm) (requires manual verification) Wheelbase: Approx. 49.2 in (1250 mm) (requires manual verification) Cargo Front Rack Capacity: Approx. 88 lbs (40 kg) (requires manual verification) Rear Rack Capacity: Approx. 176 lbs (80 kg) (requires manual verification) Weights Dry Weight 350: Approx. 525 lbs (238 kg) (requires manual verification) Dry Weight 400: Approx. 569 lbs (258 kg) (requires manual verification) Towing Capacity: Approx. 1,124 lbs (510 kg) (requires manual verification) 🛡️ Safety Features Ratings Atv Classification: Utility ATV Active Features Braking System: Hydraulic disc brakes front and rear. Parking Brake: Mechanical parking brake, typically integrated into the rear brake caliper or a...