🏷️ Basic Information Identification Make: Yamaha Model: Bruin 350 Model Variants: 2WD Model Codes: YFM35AS, YFM35BAT, YFM35BAV Model Years: 2004, 2005, 2006 👋 Introduction Market Position Vehicle Segment: Utility ATV (All-Terrain Vehicle) Target Audience: Recreational riders, utility users, farmers, hunters Competitive Analysis Competitors: Honda FourTrax, Kawasaki Bayou, Suzuki King Quad Key Features Vehicle Usp: Reliable 350cc engine, comfortable ride, capable 2WD platform for general use Manual Value Proposition Benefit To Owner: Empowers owners to perform routine maintenance, diagnose issues, and undertake repairs, saving time and money compared to dealership service. Content Advantage: Provides factory-accurate procedures and specifications, ensuring repairs are performed to original manufacturer standards. 📋 Manual Details Coverage Areas Coverage Scope: Complete vehicle repair and maintenance Page Count Estimated Page Count: Approximately 300-500 pages (typical for this class of service manual) Manual Type Manual Type: Factory Service Manual / Repair Manual Language Language: English Format Format: PDF (Downloadable) 📖 Manual Coverage Systems Covered Engine: Internal combustion engine, lubrication, cooling, fuel, exhaust Transmission: Automatic transmission, internal components, clutch system Drivetrain: Final drive, driveshafts, differentials Chassis: Frame, bodywork, seating, storage Suspension: Front and rear suspension components, shock absorbers, linkages Steering: Steering column, tie rods, steering mechanism Brakes: Brake system components, hydraulics, calipers, pads, rotors Electrical: Ignition system, starting system, charging system, lighting, instrumentation, battery Wiring Diagrams: Comprehensive electrical schematics for all systems Procedures Included Maintenance: Scheduled maintenance, fluid changes, filter replacements, lubrication points Troubleshooting: System-specific diagnostic procedures, common fault identification Disassembly Assembly: Detailed step-by-step instructions for component removal and installation Repair: Component-level repair instructions, including internal engine and transmission work Specifications: Torque specifications, clearances, fluid capacities, electrical resistance values Technical Depth Depth: Comprehensive, from basic fluid checks to complete engine and transmission rebuilds 📊 Manual Specifications File Format File Type: PDF Searchability: Searchable text content Print Quality Printability: Printable pages, allowing for hard copy use Binding Type Binding Type: N/A (Digital format) Paper Type Paper Type: N/A (Digital format) ⚙️ Engine Specifications Primary Engine Engine Type: 4-stroke, SOHC, 2-valve, single-cylinder Displacement: 348cc Bore X Stroke: 83.0 mm x 64.5 mm Cooling System: Liquid-cooled Performance Horsepower Estimate: Approximately 20-22 HP (at crankshaft, estimated) Torque Estimate: Approximately 20-22 lb-ft (at crankshaft, estimated) Fuel System Fuel Delivery: Carburetor Carburetor Model: Mikuni BSR33/1 Fuel Type: Unleaded gasoline Ignition Ignition System: Digital T.C.I. (Transistor Controlled Ignition) 🔧 Transmission Standard Transmission Type: Automatic (Yamaha Constant Velocity Transmission - Y.C.V.T.) Drive Modes: 2WD Features Gear Selection: Forward (High/Low), Neutral, Reverse Clutch Type: Wet, centrifugal, automatic 📐 Dimensions Weights Dry Weight: Approximately 234 kg (516 lbs) Fuel Capacity: 3.4 US gallons (13 Liters) Oil Capacity: 2.0 L (with filter change) 🛡️ Safety Features Ratings Atv Safety Considerations: Emphasis on safe riding practices, proper gear, and understanding vehicle limits. Not subject to automotive crash ratings. Active Features Braking System: Hydraulic disc brakes (front and rear) Passive Features Lighting: Halogen headlights, taillight, brake light 💡 Technology Features Infotainment Infotainment System: N/A (Basic ATV design) Driver Assistance Driver Assistance Features: N/A (Basic ATV design) Connectivity Connectivity Options: N/A (Basic ATV design) 🔧 Maintenance Service Intervals Initial Service: First service typically recommended at 100-200 miles or 1 month. Engine Oil Change: Every 100-200 hours or 6 months. Air Filter Cleaning: Inspect and clean every 20-40 hours, replace as needed. Spark Plug Replacement: Recommended every 100-200 hours or 1 year. Fluid Specifications Engine Oil Type: Yamalube 4 (or equivalent SAE 10W-40 API SE, SF, SG, SH, SJ, SL) Coolant Type: Permanent type antifreeze, ethylene glycol based (50/50 mix with distilled water recommended) Brake Fluid Type: DOT 3 or DOT 4 brake fluid Final Drive Oil Type: Yamalube Gear Oil (or equivalent SAE 80W-90 API GL-4) Known Issues Common Wear Items: Brake pads, tires, drive belts (CVT), wheel bearings. Potential Engine Issues: Carburetor tuning sensitivity, occasional cooling system leaks if not maintained. 📚 Vehicle History Brand Heritage Yamaha Atv Legacy: Yamaha has a long-standing reputation for building durable and reliable ATVs, dating back to the early days of the industry. Model Evolution Bruin Positioning: The Bruin 350 was introduced as a mid-range utility ATV, offering a balance of performance, comfort, and value for a variety of tasks. Production Manufacturing Origin: Primarily manufactured in Japan and/or USA by Yamaha Motor Corporation. 🏆 Awards & Recognition Recognitions Industry Awards: Not specifically documented for this model, but Yamaha's ATV line consistently receives positive reviews for reliability and performance within its class.