This manual provides comprehensive service information for the 2009 Sportsman 300 and 400 HO ATVs. These models were engineered for versatile utility and trail riding, offering a balance of power and maneuverability. The Sportsman line is known for its durability and rider comfort, with the 300 and 400 HO variants representing reliable mid-range options within this acclaimed series. These ATVs are equipped with liquid-cooled, 4-stroke engines featuring Electronic Fuel Injection (EFI) for efficient performance, paired with Variable Transmission (PVT) for seamless power delivery. This Service Manual is designed to be an authoritative resource for maintaining and repairing your 2009 Sportsman 300 or 400 HO. It covers a wide array of systems, including general information, routine maintenance, engine, fuel system, electrical system, body, steering, final drive, transmission, and brakes. Within its 292 pages, you will find detailed procedures for component diagnostics, troubleshooting, engine overhauls, fuel system servicing, and electrical system testing, all supported by numerous diagrams and illustrations. This guide is suitable for both home mechanics and professional technicians seeking to ensure the optimal performance and longevity of their vehicle. 🏷️ Basic Information Identification Make: Polaris Model: Sportsman 300 / 400 HO Year: 2009 Codes Model Code 300: A09AA27AB Model Code 400 Ho: A09AN32AJ / A09AN32AX 👋 Introduction Market Position Positioning: A vital resource for owners and DIY enthusiasts of the 2009 Polaris Sportsman 300 and 400 HO ATVs, emphasizing ease of home maintenance and repair. Competitive Analysis Comparison: Directly competes with factory service manuals, offering a comparable level of detail and authority for this specific model year and variants, often at a more accessible price point for consumers. Key Features Features: Detailed diagrams, step-by-step repair instructions, comprehensive maintenance schedules, troubleshooting guides, and electrical schematics specifically tailored for the 2009 Sportsman 300 and 400 HO. 📋 Manual Details Coverage Areas Primary Coverage: 2009 Polaris Sportsman 300 and 400 HO ATVs Page Count Page Count: 292 Manual Type Manual Type: Service Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Systems: General Information, Maintenance, Engine, Electronic Fuel Injection (EFI), Body, Steering, Final Drive, Transmission, Brakes, Electrical System Engine Specifics: Engine specifications, disassembly, inspection, assembly, top-end rebuild, bottom-end rebuild, cooling system servicing, lubrication system. Fuel System Specifics: EFI system components, fuel pump, injectors, throttle body, pressure testing, diagnostic codes. Electrical Specifics: Wiring diagrams, component testing (stator, regulator/rectifier, battery, starter, lighting, ignition), troubleshooting electrical faults. Chassis Suspension Steering: Front and rear suspension components, steering linkage, wheel alignment, bearing replacement, shock absorber servicing. Drivetrain Transmission: PVT system maintenance, drive clutch, driven clutch, belt replacement, gearcase maintenance, AWD system (if equipped). Brake System Specifics: Hydraulic brake system servicing, caliper overhaul, master cylinder inspection, pad and rotor replacement, bleeding procedures. Procedures Included Procedures: Routine maintenance, troubleshooting, repair procedures, component diagnostics, electrical system testing, engine overhaul, fuel system servicing, suspension adjustments, brake system maintenance, drive system servicing Diagnostic Procedures: Troubleshooting flowcharts, diagnostic trouble codes (DTCs) for EFI system, methods for identifying common problems. Rebuild Procedures: Detailed instructions for engine component rebuilds, transmission components, and sub-assemblies. Adjustment Procedures: Carburetor (if applicable, though these are EFI), throttle cable, idle speed, suspension adjustments, steering alignment. Technical Depth Depth: Comprehensive from basic routine maintenance to in-depth engine and electrical diagnostics and repair, suitable for home mechanics and professional technicians. Specification Detail: Includes precise torque specifications for all fasteners, critical clearances, fluid capacities, and diagnostic parameters. Diagrams Illustrations: Numerous exploded views, schematic diagrams, and detailed illustrations to guide users through complex procedures. 📊 Manual Specifications File Format File Format: PDF Searchability: Text-searchable PDF allows for quick location of specific information. Print Quality Print Quality: High-resolution, enabling clear printing of specific sections or the entire manual. Binding Type Binding Type: N/A (Digital PDF Download) Paper Type Paper Type: N/A (Digital PDF Download) ⚙️ Engine Specifications Primary Engine 300 Engine Type 300: 271cc, Single-Cylinder, Liquid-Cooled, 4-Stroke SOHC Primary Engine 400 Ho Engine Type 400 Ho: 375cc, Single-Cylinder, Liquid-Cooled, 4-Stroke SOHC Performance 300 Horsepower 300: Approximately 19.7 HP (Estimate based on displacement and typical tuning for the era) Performance 400 Ho Horsepower 400 Ho: Approximately 25 HP (Estimate based on displacement and typical tuning for the era) Fuel System Fuel Delivery: Electronic Fuel Injection (EFI) Ignition System Ignition: Digital CDI Cooling System Cooling Method: Liquid-Cooled 🔧 Transmission Standard Transmission Type: Automatic (PVT - Polaris Variable Transmission) Features Drive Modes: High, Low, Neutral, Reverse Drivetrain: Shaft Drive Differential: Limited-slip front differential, Locked rear differential (on some models, check specific VIN) 📐 Dimensions Weights 300 Dry Weight 300: Approximately 630 lbs (286 kg) Weights 400 Ho Dry Weight 400 Ho: Approximately 670 lbs (304 kg) Cargo Capacity Front Rack Capacity: 100 lbs (45.4 kg) Rear Rack Capacity: 200 lbs (90.7 kg) Towing Capacity Towing Capacity: 1500 lbs (680 kg) Dimensions Lxwxh Dimensions Approximate: 83 x 42.25 x 48.5 inches (211 x 107.3 x 123.2...