🏷️ Basic Information Identification Make: Yamaha Model: Bruin 350FAS Model Code: YFM350FAS Year: 2002-2004 Vehicle Type: All-Terrain Vehicle (ATV) Codes Manual Product Name: YAMAHA YFM35FAS 350FAS BRUIN 2002 - 2004 SUPPLEMENTARY SERVICE MANUAL Manual Product Code: Not Specified 👋 Introduction Market Position Positioning: Essential diagnostic and repair guide for owners and independent workshops seeking to maintain or repair their Yamaha Bruin 350FAS. Competitive Analysis Value Proposition: Provides OEM-level information, enabling significant cost savings on repairs compared to dealership service. Key Features Feature 1: Comprehensive coverage of all repair aspects, front to back. Feature 2: Detailed technical specifications and illustrations. Feature 3: Troubleshooting guidance for efficient problem diagnosis. Feature 4: Complete torque specifications for critical fasteners. Feature 5: Full wiring diagrams for electrical system diagnostics. 📋 Manual Details Coverage Areas Primary Coverage: Supplementary Service and Repair for Yamaha Bruin 350FAS ATVs Model Years Covered: 2002, 2003, 2004 Page Count Page Count: 119 Manual Type Manual Type: Supplementary Service Manual Intended Audience: Independent Garages, DIY Mechanics, ATV Owners Language Language: English (Inferred from description) Format Format: Downloadable (Printable) 📖 Manual Coverage Systems Covered Engine: Engine Overhaul and Rebuilding, Fuel & Exhaust, Ignition & Electrical, Timing Belt Service Procedures Transmission: Transmission, Clutch Chassis: Suspension, Wheels & Tyres, Steering, Frame and Bodywork, Brake Servicing Procedures Electrical Systems: Ignition & Electrical, Complete Wiring Diagrams Cooling Systems: Cooling Systems Procedures Included Maintenance: General Maintenance Repair: All necessary instructions for all repairs, step-by-step explanations Diagnostics: Troubleshooting and Diagnostics Rebuilding: Engine Overhaul and Rebuilding Specific Procedures: Timing Belt Service Procedures, Brake Servicing Procedures Technical Depth Depth: Detailed illustrations, depth illustrations, technical specifications, complete torque specifications Accessibility: Understandable with basic mechanical knowledge 📊 Manual Specifications File Format File Format: Digital Download (Likely PDF) Print Quality Print Quality: Printable Individually Binding Type Binding Type: Not Applicable (Digital Download) Paper Type Paper Type: Not Applicable (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Type: SOHC, 4-stroke, 2-valve, Air-cooled Displacement: 348 cc Bore X Stroke: 83 mm x 64.5 mm Compression Ratio: 9.2:1 Carburetor: Mikuni VM32SS (or similar, specific model to be confirmed by manual) Performance Horsepower: Approximately 18-20 HP (Estimate, official figures may vary) Torque: Not Specified in product description, detailed in manual Fuel System Fuel Type: Unleaded Gasoline Fuel Tank Capacity: 3.2 US gal (12 L) 🔧 Transmission Standard Transmission Type: Automatic (Ultramatic®) Drive System: Shaft Drive, 4WD (FAS denotes 4WD with Automatic) Optional Optional Drive: 2WD variants might exist, but 'FAS' typically indicates 4WD Features Clutch Type: Wet, automatic centrifugal clutch Gear Selection: High, Low, Neutral, Reverse 📐 Dimensions Exterior Length: 76.8 in (1950 mm) Width: 43.3 in (1100 mm) Height: 45.1 in (1145 mm) Wheelbase: 49.2 in (1250 mm) Weights Dry Weight: 571 lbs (259 kg) Curb Weight: Not Specified, typically higher than dry weight Cargo Front Rack Capacity: 99 lbs (45 kg) Rear Rack Capacity: 176 lbs (80 kg) Tires Front Tire Size: AT25 x 8-12 Rear Tire Size: AT25 x 10-12 Wheel Bolt Pattern: Not specified, typically 4-bolt 🛡️ Safety Features Ratings Rollover Protection: Standard ATV design, does not include a roll cage or seatbelts. Operator safety relies on proper riding techniques and protective gear. Active Features Braking System: Hydraulic disc brakes (front and rear) Parking Brake: Yes, typically integrated with rear brake caliper. Passive Features Lighting: Dual headlights, taillight/brake light 💡 Technology Features Infotainment Infotainment System: Not applicable; ATVs of this era do not feature infotainment systems. Driver Assistance Driver Assistance Features: Not applicable; basic ATVs do not have advanced driver assistance systems. Connectivity Connectivity Features: Not applicable. 🔧 Maintenance Service Intervals Oil Change: Recommended every 100 hours or annually (Refer to manual for specific intervals and conditions) Air Filter Cleaning: Inspect and clean every 20 hours or as needed, especially in dusty conditions. Spark Plug Replacement: Refer to manual; typically 1,000-2,000 hours or as performance degrades. Fluid Specifications Engine Oil Type: Yamalube 4 (or equivalent SAE 10W-40 API SG or higher, JASO MA) Engine Oil Capacity: Refer to manual (typically around 1.6-1.8 liters with filter change) Gear Oil Type: Yamalube Gear Oil (or equivalent SAE 80 API GL-4) Coolant Type: Not Applicable (Air-cooled engine) Known Issues Common Wear Items: Brake pads, tires, drive shafts, wheel bearings, carburetor jetting due to ethanol fuels. Carburetor Issues: Can be prone to clogging if fuel is left in for extended periods or if debris is present in the fuel system. Electrical Connections: Corrosion or loose connections in exposed areas can lead to intermittent electrical faults. Wire diagrams are crucial for diagnosis. 📚 Vehicle History Brand Heritage Yamaha Atv Legacy: Yamaha has a long-standing reputation for building reliable and performance-oriented ATVs, dating back to the early 1980s with models like the Yamaha Moto-4. Model Evolution Bruin Lineage: The Bruin series was introduced as a utility-focused ATV, offering a balance of power, comfort, and capability. It evolved from previous Yamaha...