Basic Information Identification Make: Polaris Model: Sportsman Year: 2009 Sub Model: 300 / 400 H.O. Type: ATV (All-Terrain Vehicle) Codes Chassis Codes: Not specified, typically VIN breakdown for specific model variants. Engine Codes: Not specified, but likely refers to specific engine designations for the 300 and 400 H.O. models. Generation Generation: Third Generation Sportsman (2005-2009) Introduction Market Position Market Segment: Entry-level to mid-range utility ATV segment, offering a balance of performance and value. Competitive Analysis Competitors: Competed with models from Honda (e.g., Rancher), Yamaha (e.g., Kodiak), Kawasaki (e.g., Brute Force), Can-Am (e.g., Outlander 400). Key Features Powertrain: Single-cylinder, liquid-cooled engines with Polaris's H.O. (High Output) designation for improved performance. Drivetrain: Available in 2x4 and 4x4 configurations, featuring automatic PVT (Polaris Variable Transmission) with engine braking. Suspension: Independent Front Suspension (IFS) for improved ride comfort and handling, and a robust rear suspension system. Manual Details Coverage Areas Models Covered: 2009 Polaris Sportsman 300 / 400 2x4 H.O., 2009 Polaris Sportsman 300 4x4, 2009 Polaris Sportsman 400 4x4 H.O. Geographic Coverage: Assumed North American market based on product description, but general technical information is likely universal. Page Count Page Count: Not specified. Service manuals of this nature are typically comprehensive, often exceeding 500 pages. Manual Type Manual Type: Workshop Service Repair Manual Language Language: English Format File Format: PDF Compatibility: Windows / macOS Required Software: Adobe PDF Reader Print Quality Printability: Yes Manual Coverage Systems Covered Engine: Complete engine disassembly, assembly, inspection, and repair. Includes cylinder head, piston, crankshaft, connecting rods, valve train, timing. Fuel System: Carburetor (likely Mikuni for these models) service, adjustments, fuel pump, fuel tank, lines, and filter. EFI details if applicable to specific sub-models (though 300/400 typically carbureted). Body Steering Suspension: Body panel removal/installation, steering column, tie rods, ball joints, A-arms, bushings, shock absorbers, wheel bearings, spindle assembly. Cvt Transmission: Continuously Variable Transmission (CVT) disassembly, inspection, belt replacement, drive clutch, driven clutch service, gearbox lubrication. Final Drive: Front and rear differential service, axle shafts, U-joints, seal replacement, lubrication. Brakes: Hydraulic brake system, master cylinder, brake calipers, brake pads, brake discs, bleeding procedure, parking brake mechanism. Electrical: Battery, charging system (stator, regulator/rectifier), starter motor, ignition system, lighting, switches, sensors, instrumentation, fuses, relays. Wire Diagram: Detailed electrical wiring schematics for all systems, aiding in troubleshooting and component identification. Procedures Included Maintenance: Routine maintenance tasks, fluid changes, filter replacements, lubrication points, bolt torque specifications. Diagnostics: Troubleshooting guides, symptom-based diagnostics, diagnostic trouble codes (if applicable), testing procedures for electrical components. Repair: Step-by-step instructions for component repair, replacement, and adjustment across all covered systems. Rebuild: Comprehensive procedures for major component overhauls, such as engine and transmission rebuilds. Technical Depth Depth: Comprehensive. Covers everything from basic fluid checks and adjustments to full engine and transmission overhauls, including detailed electrical diagnostics. Target Audience: Professional dealership technicians and experienced DIY mechanics. Manual Specifications File Format File Format: PDF Searchability: Typically PDF manuals are searchable by keywords. Print Quality Print Quality: Printable, allowing users to create hard copies for workshop use. Binding Type Binding Type: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) Engine Specifications Primary Engine Engine Type 300: Single-cylinder, liquid-cooled, SOHC (Single Overhead Cam), 4-stroke. Engine Displacement 300: Approximately 270cc (specific bore/stroke data not provided). Engine Type 400 Ho: Single-cylinder, liquid-cooled, SOHC (Single Overhead Cam), 4-stroke. Engine Displacement 400 Ho: Approximately 375cc (specific bore/stroke data not provided). Performance Horsepower 300: Estimated 18-20 HP (at crankshaft, not specified). Horsepower 400 Ho: Estimated 26-28 HP (at crankshaft, not specified). Torque 400 Ho: Estimated 24-26 lb-ft (at crankshaft, not specified). Fuel System Fuel Delivery: Carbureted (likely Mikuni BSR series for both models). Fuel Type: Unleaded gasoline, 87 octane minimum recommended. Fuel Capacity: Typically around 3.2 gallons (12.1 liters) for this generation Sportsman. Transmission Standard Transmission Type: Polaris Variable Transmission (PVT) automatic with High, Low, Neutral, Reverse, and Park. Drive System: Shaft drive, with on-demand AWD (All-Wheel Drive) for 4x4 models, and 2WD for 2x4 models. Optional Optional Transmission: N/A (PVT is standard for this model) Features Engine Braking: Standard on PVT for downhill control. Cvt Fluid Type: Polaris AGL Synthetic Gearcase Lubricant or equivalent. Dimensions Exterior Length: Approximately 81 inches (205.7 cm) for 400 H.O., slightly less for 300. Width: Approximately 46 inches (116.8 cm). Height: Approximately 48 inches (121.9 cm). Weights Dry Weight 400 Ho: Approximately 600 lbs (272 kg). Dry Weight 300: Approximately 550 lbs (250 kg). Ground Clearance: Typically around 10.5 inches (26.7 cm). Cargo Front Rack Capacity: Typically 50 lbs (22.7 kg). Rear Rack Capacity: Typically 100 lbs (45.4 kg). Towing Towing Capacity: Typically 1,050 lbs (476 kg). Hitch Receiver: Standard 1.25 inch receiver (often requires an adapter for standard ball hitches). Safety Features Ratings Safety Ratings: ATVs are not typically rated by organizations like NHTSA. Safety relies on operator training and adherence to manufacturer guidelines. Active Features Active Safety: On-demand AWD...