🏷️ Basic Information Identification Make: Polaris Model: Sportsman 300 / 400 H.O. Year: 2009 Codes Vin Decoder Notes: VIN decoding information is typically found in a dedicated section of the service manual and would cover the 17-character VIN structure specific to Polaris ATVs of this era. It would allow identification of model, engine type, and manufacturing details. 👋 Introduction Market Position Market Position: The Polaris Sportsman 300 and 400 H.O. ATVs from 2009 represent entry-to-mid-level offerings in the versatile Sportsman lineup, known for their utility and trail-riding capabilities. This manual serves the owners and technicians supporting these popular models. Competitive Analysis Competitive Landscape: Competed against models from Yamaha (Grizzly, Kodiak), Can-Am (Outlander), Arctic Cat (ATV), and Honda (Rancher, Foreman) in the recreational and utility ATV segment. Key Features Key Features: The 2009 Sportsman models are recognized for their independent rear suspension (IRS), on-demand all-wheel drive (AWD) on some variants, Polaris' signature comfortable seating, and reliable utility features for work and recreation. The H.O. designation typically indicates an enhanced engine output. 📋 Manual Details Coverage Areas Manual Scope: Comprehensive service, repair, and maintenance for 2009 Polaris Sportsman 300 and 2009 Polaris Sportsman 400 H.O. ATVs. Page Count Page Count: 291 Manual Type Manual Type: Factory Service Manual / Repair Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Systems: Engine (including tear down, rebuild, PGM-FI, carburetion, ignition, fuel system, lubrication, cooling), Transmission (drive train, clutches, gears), Chassis (frame, suspension, steering, brakes, wheels, tires), Electrical System (battery, charging system, lighting, switches, wiring harness, magneto, stator, rectifier), Bodywork (fenders, plastics, seat, storage), Fuel System (fuel pump, fuel injection, carburettor, jets), Exhaust System, Starting System (starter motor, kickstart), Drivetrain (axles, driveshaft, swingarm, rear drive, primary reduction gear). Procedures Included Procedures: Complete tear down and rebuild, routine maintenance, troubleshooting, diagnostics, component inspection, repair, adjustments (valve clearance, mixture screw, throttle cable), installation, overhaul, fluid changes, brake bleeding, suspension tuning, tire maintenance, electrical diagnostics, error code interpretation. Troubleshooting Guide: Dedicated sections for diagnosing and resolving common and complex operational problems and error codes. Technical Depth Technical Depth: In-depth, factory-level technical information covering all aspects of repair and maintenance, including detailed diagrams, exploded views, torque specifications, and diagnostic procedures for both minor adjustments and major component overhauls. Diagrams And Illustrations: Extensive use of pictures, part diagrams, and exploded views to clearly illustrate components and procedures. Torque Specifications: Precise torque values for all critical fasteners and components (e.g., cylinder head bolts, wheel lug nuts, suspension bolts). 📊 Manual Specifications File Format File Format: Portable Document Format (PDF) Print Quality Print Quality: High-resolution, suitable for printing Binding Type Binding Type: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) Searchability Searchability: Fully searchable text Restrictions Restrictions: No restrictions on printing or saving/burning to disc ⚙️ Engine Specifications Primary Engine Engine Type: Single-cylinder, 4-stroke Displacement 300: Approx. 271cc (exact figures may vary based on internal Polaris specifications) Displacement 400 Ho: Approx. 375cc (exact figures may vary based on internal Polaris specifications) Performance Horsepower 400 Ho: Estimated 25-30 HP (typical for this class, specific figures detailed in manual) Torque 400 Ho: Estimated 25-30 lb-ft (typical for this class, specific figures detailed in manual) Engine Configuration: Single-cylinder, SOHC (Single Overhead Cam) Fuel System Fuel System Type: Fuel Injection (EFI) for 400 H.O., Carbureted for 300 (specific carburetors and EFI components detailed in manual) Fuel Type: Unleaded Gasoline Carburetor Details 300: Specific carburetor model, jet sizes (main jet, pilot jet, slow jet), and mixture screw adjustment procedures detailed. Efi Details 400 Ho: Information on sensors, fuel pump, injectors, and ECU diagnostics for the electronic fuel injection system. Cooling System Cooling System: Liquid-cooled Ignition System Ignition Type: Electronic Ignition (CDI/Digital) 🔧 Transmission Standard Transmission Type: Automatic (CVT - Continuously Variable Transmission) Transmission Gears: High, Low, Neutral, Reverse, Park Features Drive System: On-Demand AWD (Active Descent Control on some variants) and 2WD Clutch Type: Primary and Secondary Clutch system (CVT) 📐 Dimensions Exterior Length: Approx. 83 in. (210.8 cm) (refer to manual for precise dimensions by model variant) Width: Approx. 46 in. (116.8 cm) (refer to manual for precise dimensions by model variant) Height: Approx. 47.5 in. (120.7 cm) (refer to manual for precise dimensions by model variant) Wheelbase: Approx. 50.5 in. (128.3 cm) (refer to manual for precise dimensions) Weights Dry Weight: Approx. 650-700 lbs (295-318 kg) (refer to manual for precise weights by model variant) Ground Clearance: Approx. 11.25 in. (28.6 cm) Towing Capacity: 1,500 lbs (680 kg) Rack Capacity Front: 100 lbs (45.4 kg) Rack Capacity Rear: 200 lbs (90.7 kg) 🛡️ Safety Features Ratings Atv Safety Standards: Conforms to ANSI/SVIA standard 1-2010 and 1-2014. Active Features Active Safety Features: On-Demand All-Wheel Drive, powerful braking system (hydraulic disc front and rear), stable chassis design. Passive Features Passive Safety Features: Handlebar guards, comfortable seating position, integrated lighting (headlights, taillight)....