🏷️ Basic Information Identification Make: Polaris Model: Sportsman 300 / 400 HO Year: 2009 Codes Vin Decoder Prefix: 4TVS 👋 Introduction Market Market Position: The Polaris Sportsman line is a leading contender in the ATV market, known for its robust performance, versatility, and rider comfort, particularly targeting utility and trail riding enthusiasts. Competitive Analysis Competitive Analysis: Competes with other major ATV manufacturers like Can-Am (Outlander), Honda (Foreman, Rubicon), Yamaha (Grizzly), and Arctic Cat (TRV) in the mid-displacement utility ATV segment. Key Features Key Features: Features like Polaris's True On Demand AWD, IRS (Independent Rear Suspension), powerful engines, and comfortable seating contribute to its strong market presence. 📋 Manual Details Coverage Coverage Areas: Comprehensive service and repair for Polaris Sportsman 300 and 400 HO models. Page Count Page Count: Estimated 400-600 pages (typical for this level of detail). Type Manual Type: Service Repair Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Systems Covered: General Information, Troubleshooting, Lubrication, Maintenance, Tune-Up, Engine Top End, Engine Lower End, Fuel System, Cooling Systems, Clutch/Drive Belt System, Drivetrain, Suspension, Steering, Brakes, Electrical System, Bodywork, Chassis, Frame. Procedures Procedures Included: Diagnostic procedures, disassembly, inspection, repair, reassembly, adjustments, component replacement, routine maintenance, tune-up specifications, torque values, wiring diagrams, special tool recommendations. Depth Technical Depth: In-depth, factory-level technical information suitable for both experienced technicians and diligent DIY owners. Covers from basic maintenance to complete engine and drivetrain overhauls. 📊 Manual Specifications File File Format: Searchable PDF Quality Print Quality: High-resolution scans of original factory documentation with clear diagrams and text. Binding Binding Type: N/A (Digital Download) Paper Paper Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Type: Liquid-cooled, 4-stroke, SOHC, 2-valve Displacement 300: 278cc Displacement 400 Ho: 375cc Performance Horsepower 300: Approx. 20 HP Horsepower 400 Ho: Approx. 28 HP Fuel System Fuel Delivery: Carbureted (Mikuni BSR42 for 400 HO, Keihin CVK32 for 300) Fuel Type: Unleaded gasoline, 87 octane minimum Ignition Ignition System: Electronic Ignition Cooling Cooling System: Liquid-cooled 🔧 Transmission Standard Transmission Type: Automatic PVT (Polaris Variable Transmission) with Engine Braking Drive Modes: 2WD/AWD (True On Demand) Features Clutch System: Heavy-duty V-belt 📐 Dimensions Exterior Length: Approx. 82 in (208.3 cm) Width: Approx. 46 in (116.8 cm) Height: Approx. 48 in (121.9 cm) Weights Dry Weight 300: Approx. 634 lbs (287.6 kg) Dry Weight 400 Ho: Approx. 662 lbs (300.3 kg) Towing Capacity: 1500 lbs (680 kg) Rack Capacity Front: 90 lbs (40.8 kg) Rack Capacity Rear: 180 lbs (81.6 kg) Other Ground Clearance: 11 in (27.9 cm) Wheels Tires Front Tire Size: AT 25 x 8-12 Rear Tire Size: AT 25 x 10-12 Wheelbase: 50.5 in (128.3 cm) 🛡️ Safety Features Ratings Safety Ratings: N/A (ATVs do not receive NCAP or NHTSA ratings like passenger vehicles). Active Features Active Safety Features: True On Demand AWD, Engine Braking System (EBS). Passive Features Passive Safety Features: Handlebar guards, integrated lighting, operator-centric design for stability. 💡 Technology Features Infotainment Infotainment System: Basic analog/digital instrument cluster displaying speed, RPM, odometer, trip meter, fuel level, and engine status indicators. No integrated infotainment systems. Driver Assistance Driver Assistance Features: Limited to the functionality of the AWD system and EBS. Connectivity Connectivity Options: N/A 🔧 Maintenance Intervals Initial Service: Break-in service typically recommended at 10 hours or 100 miles. Oil Change Interval: Every 100 hours or 1000 miles, or annually (whichever comes first). Air Filter Cleaning: Inspect every 25 hours, clean as needed. Replace every 100 hours or as needed. Spark Plug Replacement: Recommended every 100 hours or annually. Fluid Specs Engine Oil Type: Polaris PS-4 Full Synthetic 0W-40 (or equivalent JASO MA/MA2 certified 10W-40 or 20W-50 depending on climate). Engine Oil Capacity: Approx. 2.0 quarts (1.9 L) with filter change. Coolant Type: Ethylene glycol-based antifreeze with corrosion inhibitors (Polaris recommended or equivalent meeting ASTM D3306). Brake Fluid Type: DOT 3 or DOT 4 brake fluid. Transmission Fluid Type: Polaris PVT Fluid or equivalent CVT transmission fluid. Known Issues Common Issues: Wear on suspension components, drive belt longevity under heavy use, potential carburetor tuning issues, battery maintenance, occasional electrical connector corrosion. Part Numbers Oil Filter Part Number: 2440557 (example, always verify with VIN) Air Filter Part Number: 7080577 (example, always verify with VIN) Drive Belt Part Number: 3211077 (for 400 HO, example, always verify with VIN) 📚 Vehicle History Brand Brand Heritage: Polaris Industries, founded in 1954, is a long-standing manufacturer of powersports vehicles, renowned for its innovation and market leadership in ATVs, snowmobiles, and off-road vehicles. Model Evolution Model Evolution: The Sportsman line has been a cornerstone of Polaris's ATV offerings, evolving over decades with advancements in engine technology, suspension, and rider comfort. The 300 and 400 HO models represent a mid-range utility offering within this popular series. Production Production Years Covered: 2009 model year for both Sportsman 300 and 400 HO. 🏆 Awards & Recognition Recognitions...