The Polaris Sportsman 400 HO, produced for the 2012 and 2013 model years, is a capable mid-size utility All-Terrain Vehicle (ATV). Built on the robust Polaris Sportsman platform, this model is engineered for a variety of tasks, appealing to recreational riders, farmers, hunters, and trail enthusiasts. It is recognized for its smooth and responsive power delivery from the 375cc, SOHC, 4-valve engine, providing approximately 25-30 horsepower. Key features contributing to its versatility and comfort include Independent Front Suspension (IFS) for improved handling over varied terrain, and ample rack capacity for hauling gear. The Sportsman 400 HO is known for its durability and reliability, making it a trusted choice for both work and play. This comprehensive workshop service and repair manual provides essential information for the maintenance and repair of your 2012-2013 Polaris Sportsman 400 HO. It covers all major systems, including detailed procedures for engine overhaul, fuel system service, PVT transmission maintenance, drivetrain and suspension repairs, brake system servicing, and electrical system diagnostics. The manual also includes routine maintenance schedules, troubleshooting guides for common issues, component disassembly and reassembly instructions, critical torque specifications, and complete wiring diagrams. This resource is designed to assist owners, technicians, and mechanics in keeping the Sportsman 400 HO in optimal operating condition and performing accurate repairs. 🏷️ Basic Information Identification Make: Polaris Model: Sportsman 400 HO Model Year: 2012-2013 Platform: Polaris Sportsman Codes Engine Code: 4-stroke, SOHC, 4-valve, 375cc (specific code may vary by sub-model/region, but 375cc is the identifier) 👋 Introduction Market Position Segment: Mid-size Utility ATV Target Audience: Recreational riders, farmers, hunters, trail enthusiasts seeking a capable and reliable ATV Competitive Analysis Key Competitors: Honda Foreman, Yamaha Kodiak, Suzuki King Quad, Kawasaki Brute Force (similar displacement classes) Key Features Power Delivery: Known for its smooth and responsive power delivery from the 400 HO engine. Handling Ride Comfort: Independent Front Suspension (IFS) and MacPherson strut front suspension contribute to good ride quality and handling over varied terrain. Versatility: Suitable for a range of tasks from trail riding to light utility work, with ample rack capacity. Durability Reliability: Polaris Sportsman line is generally regarded for its robust build and durability. 📋 Manual Details Coverage Areas Manual Type: Workshop Service Manual / Repair Manual Language: English Format: PDF Download Page Count Estimated Page Count: Likely 300-500+ pages (typical for comprehensive service manuals, specific count not provided in product info) 📖 Manual Coverage Systems Covered Engine: Complete engine overhaul, top-end and bottom-end procedures, valve adjustment, piston and cylinder diagnosis, lubrication system, cooling system (liquid-cooled) Fuel System: Fuel injection system (EFI), throttle body, fuel pump, fuel filter replacement, pressure testing, injector diagnosis Transmission: PVT (Polaris Variable Transmission) system, belt inspection and replacement, clutch maintenance (primary and secondary), gear case lubrication and service Drivetrain: AWD system, front differential, rear differential, driveshafts, universal joints, CV boots inspection and replacement Suspension: Front and rear suspension components, shock absorber adjustment and replacement, control arm inspection, ball joint service, bushings Brakes: Hydraulic braking system, front and rear disc brakes, brake pad replacement, caliper service, brake fluid flush and replacement, master cylinder Electrical System: Wiring diagrams, battery maintenance, charging system (stator, regulator/rectifier), starter motor, lighting system, ignition system, sensors (TPS, MAP, etc.) Steering: Steering column, tie rods, steering linkage, power steering system (if applicable, check specific sub-model for EPS) Body And Chassis: Frame inspection and repair, body panel removal and installation, seat removal, rack and fender components Cooling System: Radiator, fan, thermostat, coolant hoses, bleeding procedures Procedures Included Routine Maintenance: Oil changes, filter replacements, spark plug checks, air filter cleaning/replacement, lubrication points, battery checks Diagnostic Troubleshooting: Step-by-step troubleshooting guides for common and uncommon issues, fault code interpretation (if applicable via diagnostic tool) Major Repairs: Complete engine rebuilds, transmission overhauls, differential repairs, suspension component replacement Component Disassembly Reassembly: Detailed instructions for removing, inspecting, repairing, and reinstalling all major and minor components Torquing Specifications: Precise torque values for all critical fasteners Wiring Diagrams: Comprehensive electrical schematics for all systems Special Tools: Identification and usage instructions for specialized tools required for certain procedures Technical Depth Diagnostic Capabilities: Advanced diagnostic procedures, symptom-based troubleshooting, testing of sensors and actuators Rebuild Procedures: Full engine, transmission, and differential rebuild instructions with detailed component specifications and clearances Customization Modifications: May include some information or considerations for common modifications, but primarily focused on stock repair. 📊 Manual Specifications File Format File Type: PDF (.pdf) Searchability: Likely text-searchable PDF, allowing for quick keyword lookups Printability: Printable, allowing users to create physical copies of specific sections or the entire manual Print Quality Image Resolution: High-resolution images and diagrams suitable for viewing on screen and for printing. Binding Type Binding: N/A (Digital PDF download) Paper Type Paper Type: N/A (Digital PDF download) ⚙️ Engine Specifications Primary Engine Engine Type: 4-stroke, Single Cylinder, Liquid-Cooled, SOHC, 4-Valve Displacement: 375cc Bore X Stroke: 78 mm x 75.6 mm (typical...