🏷️ Basic Information Identification Make: Yamaha Model: Grizzly 350 IRS / 4WD / HUNTER Model Variant: IRS / 4WD / HUNTER Year: 2009 Codes Chassis Code: YFM350FGPH Engine Code: 1UY 👋 Introduction Market Position Market Segment: Mid-size utility ATV, positioned for recreational and hunting applications. Key Selling Points: Reliability, 4WD capability, IRS for improved comfort and handling, Yamaha's proven engine technology, dedicated HUNTER package. Competitive Analysis Primary Competitors: Honda FourTrax 350/420, Polaris Sportsman 400/500, Kawasaki Brute Force 300/400, Suzuki KingQuad 300/400. Key Features Vehicle Key Features: Independent Rear Suspension (IRS), On-Command 4WD, sealed front drive, rugged chassis, liquid-cooled engine, digital instrumentation, ample cargo racks. 📋 Manual Details Coverage Areas Geographical Coverage: Global Trim Level Coverage: Standard, HUNTER Edition Page Count Page Count: Estimated 400-500 pages (typical for a comprehensive service manual) Manual Type Manual Type: Service Repair Maintenance Overhaul Manual Language Language: English Format Format: PDF Download (digitally created, not scanned) 📖 Manual Coverage Systems Covered Engine Systems: Engine overhaul, top-end repair, bottom-end repair, lubrication system, cooling system, fuel system, ignition system, starting system, exhaust system. Drivetrain Systems: Transmission (CVT) inspection and repair, drive shaft, differentials (front and rear), hub assemblies, wheel bearings, drive belts. Suspension Steering Systems: Independent Rear Suspension (IRS) components, front suspension, steering linkage, tie rods, ball joints, shock absorbers, control arms. Braking Systems: Hydraulic brake system, brake calipers, brake pads, brake discs, master cylinder, brake lines, parking brake. Electrical Systems: Wiring diagrams, charging system (stator, regulator/rectifier), battery maintenance, lighting system, ignition switch, kill switch, starter motor, fuses, relays. Fuel System: Carburetor (Mikuni BSR33) tuning and overhaul, fuel pump, fuel filter, fuel tank and lines. Body Frame Chassis: Frame inspection, body panels, fenders, racks, seat, handlebars, footpegs. Procedures Included Routine Maintenance: Oil change intervals and specifications, filter replacements (oil, air), spark plug replacement, valve clearance adjustment, lubrication points. Troubleshooting: Diagnostic procedures for common performance issues, starting problems, electrical faults, and drivability concerns. Repair Procedures: Step-by-step instructions for component disassembly, cleaning, inspection, repair, and reassembly of all major systems. Overhaul Procedures: Complete engine and transmission overhaul instructions, including piston and ring replacement, bearing checks, and seal replacements. Adjustment Procedures: Carburetor adjustments, throttle cable adjustment, brake adjustments, clutch engagement adjustments. Technical Depth Depth: Comprehensive: Covers everything from basic rider maintenance to full engine and transmission rebuilds, including electrical diagnostics. 📊 Manual Specifications File Format File Format: PDF Searchability: Searchable text content Zoom Capability: High resolution, allowing for zoom without loss of clarity Print Quality Print Quality: Computer-generated (high-quality, sharp text and diagrams) Binding Type Binding Type: N/A (Digital PDF download) Paper Type Paper Type: N/A (Digital PDF download) ⚙️ 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 Compression Ratio: 9.2:1 Performance Horsepower Estimate: Approximately 21-23 hp (at 6,000 RPM) Torque Estimate: Approximately 20-22 lb-ft (at 4,500 RPM) Fuel System Fuel Delivery: Carburetor (Mikuni BSR33) Fuel Type: Unleaded gasoline (87 octane recommended) Lubrication System Oil Type: Yamalube 4 (or equivalent) SAE 10W-40 API SG or higher Oil Capacity: Approximately 1.7 L (1.8 US qt) with filter change Ignition System Ignition Type: CDI (Capacitor Discharge Ignition) Spark Plug Type: NGK CR6HSA (or equivalent) Spark Plug Gap: 0.6-0.7 mm (0.024-0.028 in) 🔧 Transmission Standard Transmission Type: Automatic (Yamaha Ultramatic® CVT with engine braking) Drive System: Shaft drive, On-Command® 2WD/4WD with differential lock Features Gear Reduction: High and Low range, Neutral, Reverse Transmission Fluid Type: Yamaha Gear Oil (or equivalent) SAE 80 API GL-4 Transmission Fluid Capacity: Approximately 0.2 L (0.21 US qt) 📐 Dimensions Exterior Length: 76.5 in (1943 mm) Width: 41.1 in (1044 mm) Height: 45.5 in (1156 mm) Wheelbase: 49.2 in (1250 mm) Ground Clearance: 7.1 in (181 mm) Cargo Front Rack Capacity: 66 lbs (30 kg) Rear Rack Capacity: 176 lbs (80 kg) Weights Dry Weight: 540 lbs (245 kg) Fuel Capacity: 3.2 gal (12 L), including 0.8 gal (3 L) reserve Wheels Tires Front Tire Size: AT25x8-12 Rear Tire Size: AT25x10-12 Wheel Type: Stamped steel 🛡️ Safety Features Ratings Safety Certifications: While ATVs are not typically crash-tested like cars, this manual will cover safety features and operating guidelines to ensure safe usage. Active Features Braking System: Hydraulic disc front and rear, with sealed drum parking brake. Engine Braking: Yamaha's Ultramatic® CVT provides reliable engine braking for descents. Passive Features Chassis Design: Durable steel frame designed for stability and load-bearing. Ergonomics: Comfortable seating position, accessible controls, and footwells designed for rider security. 💡 Technology Features Infotainment Infotainment System: Basic digital instrumentation: speedometer, odometer, trip meter, hour meter, 2WD/4WD indicator, fuel gauge. No advanced infotainment features. Driver Assistance Driver Assistance Features: Yamaha Ultramatic® CVT with engine braking. On-Command® 4WD system with differential lock. Connectivity Connectivity Features: N/A (No electronic connectivity features for external devices). 🔧 Maintenance Service Intervals Initial Service: First service typically recommended...