Basic Information Identification Make: Yamaha Model: Big Bear 350 4X4 Model Code: YFM350F Vehicle Type: All-Terrain Vehicle (ATV) Generation Generation Years: 1997-1999 Codes Engine Code: 3GD (common for this era) Introduction Market Position Target Audience: DIY enthusiasts, independent repair shops, Yamaha ATV owners seeking self-sufficiency. Competitive Analysis Value Proposition: Cost savings on repairs and maintenance, empowerment through knowledge, instant access. Key Features Instructional Style: Easy-to-follow, step-by-step instructions with accompanying illustrations and diagrams. Diagrams: Includes detailed wiring diagrams and exploded views. Delivery Method: Instant download upon payment confirmation. Manual Details Coverage Areas Coverage Years: 1997, 1998, 1999 Model Variants Covered: All 350 4X4 models Page Count Estimated Page Count: Detailed technical content often exceeds 300 pages for comprehensive shop manuals of this era. Manual Type Manual Type: Professional Service & Repair Manual Language Language: English Format File Format: PDF Download Manual Coverage Systems Covered Engine: Complete engine overhaul, carburetor tuning, ignition system diagnostics, cooling system maintenance. Transmission: Manual transmission service, clutch inspection and replacement, gear shifting mechanisms. Drivetrain: 4X4 system operation, front and rear differential service, driveshaft maintenance, CV joint inspection. Suspension: Front and rear suspension component inspection, shock absorber service, steering linkage. Brakes: Front and rear brake system service, hydraulic system bleeding, pad and shoe replacement. Electrical System: Wiring diagrams, starter system, charging system, lighting, switches, battery maintenance. Fuel System: Fuel tank service, fuel pump operation, fuel filter replacement, fuel line maintenance. Body And Frame: Body panel removal and installation, seat service, rack systems, frame inspection. Procedures Included Maintenance: Routine servicing, oil changes, filter replacements, lubrication points, pre-ride checks. Troubleshooting: Diagnostic charts for common starting, running, and operational issues. Repair: Step-by-step instructions for all major component repairs and replacements. Disassembly And Assembly: Detailed procedures for taking apart and reassembling all major vehicle systems. Technical Depth Depth Of Coverage: Comprehensive (from basic maintenance to complete engine rebuilds and electrical diagnostics). Manual Specifications File Format File Type: PDF Accessibility: Viewable on PC, MAC, Tablets, Smartphones. Print Quality Image Resolution: High-resolution images and diagrams for clarity. Binding Type Binding: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) Engine Specifications Primary Engine Engine Type: 4-stroke, SOHC, air-cooled Displacement: 348 cc Bore X Stroke: 83 mm x 64.5 mm (typical for this engine) Compression Ratio: 9.2:1 (typical) Performance Horsepower: Approx. 18-20 HP (estimated, varies by tune and specific year) Torque: Approx. 20-22 lb-ft (estimated) Fuel System Carburetor Type: Mikuni VM34 (typical for this model) Fuel Type: Unleaded gasoline Fuel Tank Capacity: Approx. 3.2 US gallons (12 L) Transmission Standard Transmission Type: 5-speed manual with automatic clutch Clutch Type: Wet, multi-plate Optional Optional Transmission: N/A (This model primarily featured the manual 5-speed) Features Reverse Gear: Yes Drive System: Shaft drive with selectable 2WD/4WD Dimensions Exterior Length: Approx. 76.4 inches (1940 mm) Width: Approx. 42.9 inches (1090 mm) Height: Approx. 42.1 inches (1070 mm) Weights Dry Weight: Approx. 529 lbs (240 kg) Ground Clearance: Approx. 6.3 inches (160 mm) Seat Height: Approx. 32.1 inches (815 mm) Safety Features Ratings Atv Safety Standards: Complies with ANSI standards for recreational ATVs. Active Features Lighting: Dual 30W headlights, 15W taillight. Braking System: Hydraulic disc brakes front and rear. Passive Features Handlebar Design: High-rise handlebars for control and rider comfort. Technology Features Infotainment Infotainment System: N/A (Utility ATV, focused on function over entertainment). Driver Assistance Driver Assistance Features: N/A (Basic operational controls). Connectivity Connectivity Features: N/A Maintenance Service Intervals Engine Oil Change: Every 1000 km or 6 months, whichever comes first (refer to manual for specific usage conditions). Spark Plug Replacement: Recommended at 5000 km or as needed based on inspection. Air Filter Cleaning: Frequent cleaning recommended, especially in dusty conditions; replacement at 1000 km or as needed. Fluid Specifications Engine Oil Type: Yamalube 4 (or equivalent SAE 10W-30 API SE, SF, SG, SH, SJ, or SJ motor oil) Engine Oil Capacity: Approx. 2.1 US quarts (2.0 L) with filter change. Gear Oil Type: Yamalube Gear Oil (or equivalent SAE 80W GL-3 or GL-4 hypoid gear oil). Brake Fluid Type: DOT 3 or DOT 4 hydraulic brake fluid. Known Issues Common Wear Items: Carburetor jets, brake pads, CV boots, starter motor brushes, seat cover. Typical Maintenance Concerns: Carburetor cleaning due to fuel varnish, checking for oil leaks, maintaining proper tire pressure. Vehicle History Brand Heritage Yamaha Atv Legacy: Yamaha has a long-standing reputation for robust and reliable ATVs, pioneering many features. Model Evolution Big Bear Lineage: The Big Bear series is known for its utility and durability, building on Yamaha's reputation for workhorse ATVs. Production Manufacturing Location: Typically manufactured by Yamaha Motor Corporation in Japan or through international subsidiaries. Awards & Recognition Recognitions Industry Reputation: The Big Bear 350 4X4 is recognized for its reliability and capability in utility applications and trail riding. Ratings Durability Rating: Highly regarded for its robust build and longevity when properly maintained.