This manual covers the Bruin 350 4x2, produced for the 2004, 2005, and 2006 model years. The Bruin 350 was designed as a versatile and user-friendly utility ATV, offering a blend of performance and comfort suitable for both recreational riding and light-duty work. The established heritage in powersports contributes to the model's reputation for durability and reliable engineering, making it a capable machine for various terrains and tasks. This comprehensive guide serves as both an owner's manual and a detailed service and repair workshop manual. It provides extensive information covering all major systems, including the engine, drivetrain, suspension, brakes, steering, and electrical components. Inside, you will find step-by-step instructions for routine maintenance, troubleshooting common issues, and performing in-depth repairs, all presented with professional-grade detail, including diagrams and diagnostic procedures. This manual is an essential resource for owners and technicians alike, empowering them to effectively maintain and repair the Bruin 350 4x2. 🏷️ Basic Information Identification Make: Yamaha Model: Bruin 350 4x2 Model Variant: 350 4x2 Years Covered: 2004, 2005, 2006 Codes Chassis Codes: YFA1V 👋 Introduction Market Position Target Audience: Yamaha Bruin 350 4x2 owners, DIY mechanics, professional technicians Competitive Analysis Value Proposition: Provides factory-level repair and maintenance information, empowering owners to maintain and repair their ATV, saving on professional labor costs. Key Features Manual Features: Hundreds of pages, detailed photos & diagrams, step-by-step instructions, professional quality Digital Benefits: Instant download, accessible on multiple devices (computer, tablet, smartphone), cross-platform compatibility (Windows & MAC) 📋 Manual Details Coverage Areas Coverage Scope: Comprehensive coverage for Owners and Service/Repair Workshop procedures Page Count Estimated Pages: Hundreds (exact number not specified, but described as extensive) Manual Type Manual Types: Owner's Manual, Service Repair Workshop Manual Language Language: English Format Digital Format: PDF 📖 Manual Coverage Systems Covered Major Systems: Engine, Drivetrain, Suspension, Brakes, Steering, Electrical System, Fuel System, Cooling System, Chassis, Bodywork Procedures Included Maintenance: Regular maintenance checks, oil changes, filter replacements, lubrication, adjustments Troubleshooting: Diagnostic procedures, common problems and solutions, fault finding guides Repair: Step-by-step repair instructions for all major components and systems Technical Depth Depth Level: Professional-grade, suitable for mechanics and technicians, covering all repairs and servicing Diagnostic Capabilities: Detailed diagnostic procedures and specifications for accurate fault identification Rebuild Procedures: Complete engine and transmission rebuild instructions with exploded diagrams 📊 Manual Specifications File Format File Type: PDF Searchability: Likely searchable text (standard for professional PDF manuals) Print Quality Printable: Yes, individual pages or the entire manual Binding Type Binding: N/A (Digital download) Paper Type Paper Quality: N/A (Digital download) Licensing Usage License: Unlimited use on multiple devices, no expiry ⚙️ Engine Specifications Primary Engine Engine Type: 4-stroke, SOHC, 2-valve Engine Displacement: 348cc Bore X Stroke: 83 mm x 64.5 mm Compression Ratio: 9.2:1 Cooling System: Liquid-cooled Performance Horsepower: Approximately 20-22 HP (estimated, specific figures vary by year and tuning) Torque: Approximately 28-30 Nm (estimated) Fuel System Fuel Delivery: Carburetor (Mikuni BSR33/1) Fuel Type: Unleaded gasoline (minimum 87 octane) Ignition Ignition System: CDI Lubrication Oil Type: Yamalube 4 (or equivalent SAE 20W-40 API SE, SF, SG type oil) Oil Capacity: 1.90 L (1.67 Imp qt, 2.01 US qt) without filter change; 2.10 L (1.85 Imp qt, 2.22 US qt) with filter change 🔧 Transmission Standard Transmission Type: Automatic (Ultramatic® V-belt) Drive System: 2WD (Rear Wheel Drive) Features Transmission Features: High/Low range, Reverse Fluid Transmission Fluid Type: Yamaha ATV Special Oil (or equivalent API GL-4, SAE 75W-90 gear oil) Transmission Fluid Capacity: 0.68 L (0.60 Imp qt, 0.72 US qt) 📐 Dimensions Exterior Overall Length: 1970 mm (77.6 in) Overall Width: 1120 mm (44.1 in) Overall Height: 1115 mm (43.9 in) Wheelbase: 1280 mm (50.4 in) Ground Clearance: 160 mm (6.3 in) Weights Dry Weight: 244 kg (538 lbs) Cargo Front Rack Capacity: 45 kg (99 lbs) Rear Rack Capacity: 85 kg (187 lbs) Towing Capacity: N/A (typically not rated for towing on this model) 🛡️ Safety Features Ratings Safety Certification: Meets ANSI standards (for ATVs) Active Features Braking System: Hydraulic disc brakes front and rear Passive Features Lighting: Dual 30W headlights, 8W taillight 💡 Technology Features Infotainment Infotainment System: Basic analog instrumentation (speedometer, odometer, fuel gauge, indicator lights) Driver Assistance Driver Assistance Features: N/A (No electronic driver aids like traction control or ABS on this model) Connectivity Connectivity Features: N/A (No connectivity features) 🔧 Maintenance Service Intervals Initial Service: First service at 10 hours or 1 month, whichever comes first (includes oil change, filter check) Regular Oil Change: Every 30 hours or 6 months, whichever comes first Air Filter Cleaning: Every 10 hours or 1 month (clean and re-oil); Replace every 20 hours or 12 months Spark Plug Replacement: Every 100 hours or 12 months Fluid Specifications Brake Fluid Type: DOT 4 hydraulic brake fluid Coolant Type: Permanent type antifreeze (50% solution with distilled water) Known Issues Common Wear Items: Brake pads, tires,...