Market Position:
The Polaris Sportsman 400 H.O. 2012 is positioned as a capable and versatile mid-range ATV, offering a balance of power and maneuverability for recreational and utility purposes. It competes in a segment that values reliability, ease of use, and good value for money.
Competitive Analysis:
Competitors at this displacement and price point typically include models from Yamaha (Grizzly 400/450), Can-Am (Outlander 400), and Suzuki (KingQuad 400). The 400 H.O. aims to differentiate through Polaris's known features like On-Demand AWD and comfort-oriented suspension.
Key Features:
Known for its independent rear suspension (IRS), Polaris's signature On-Demand True All-Wheel Drive (AWD) system, and a comfortable riding posture. The 'H.O.' designation signifies an enhanced output engine.
Coverage Areas:
General, Maintenance, Engine, Fuel Systems, Body, Suspension
Page Count:
Not specified (typical for PDF downloads)
Manual Type:
Service and Repair Manual
Engine:
Detailed information on the 400 H.O. engine, including disassembly, assembly, inspection, and component specifications.
Fuel System:
Covers fuel injection system (if applicable for 2012 H.O. model, otherwise carburetor details), fuel pump, lines, and filters.
Maintenance:
Routine checks, lubrication points, filter replacements, fluid changes, and general upkeep procedures.
Suspension:
Details on front and rear suspension components, shock absorbers, A-arms, bushings, and adjustment procedures.
Body:
Information related to body panels, fenders, racks, seat, and associated hardware for maintenance and repair.
Engine Repair:
Complete engine overhaul, piston and cylinder inspection/replacement, valve adjustments, and timing procedures.
Fuel System Troubleshooting:
Diagnosis and repair of fuel delivery issues, carburetor (if applicable) cleaning and adjustment, injector diagnostics.
Suspension Adjustment:
Preload and damping adjustments for optimal performance and rider comfort.
Electrical System:
While not explicitly listed, a comprehensive service manual typically includes diagnostics for the ignition, lighting, and charging systems.
Cooling System:
Maintenance and repair of the radiator, fan, coolant, and related hoses (typically liquid-cooled for this model).
Technical Depth:
Comprehensive, covering detailed diagnostics, repair procedures, component specifications, torque values, and troubleshooting guides suitable for professional technicians and advanced DIY users.
File Format:
PDF (Portable Document Format) and WinRAR archive for download.
Print Quality:
High-resolution, suitable for printing detailed diagrams and text.
Binding Type:
N/A (Digital Download)
Paper Type:
N/A (Digital Download)
Compatibility:
Compatible with Windows (95, 98, ME, XP, Vista, 7, 8), Linux, MAC operating systems, and all devices running iOS and Android.
Delivery:
Instant download via email after purchase.
Engine Type:
4-stroke, liquid-cooled, SOHC, single-cylinder
Displacement:
Approximately 398cc (specific bore and stroke would be detailed in the manual)
Bore X Stroke:
Typical for this class; precise figures found in manual.
Horsepower:
Around 30 HP (estimated, exact figure in manual).
Torque:
Specific torque figures available in the manual.
Ignition:
Electronic Ignition
Cooling System:
Liquid Cooling with Fan
Fuel Delivery:
Fuel Injection (EFI) or Carburetor depending on specific sub-model/region. Manual will detail the exact system.
Fuel Type:
Unleaded Gasoline (Octane rating specified in manual)
Fuel Tank Capacity:
Typically around 3.3 gallons (12.5 L).
Transmission Type:
Automatic (PVT - Polaris Variable Transmission) with Engine Braking
Drive Select:
2WD / AWD (On-Demand True AWD)
Gear Selection:
High, Low, Neutral, Reverse, Park
Clutch Type:
CVT (Continuously Variable Transmission) with Belt Drive
Final Drive:
Sealed Chain Drive
Length:
Approx. 81.5 inches (207 cm)
Width:
Approx. 46 inches (117 cm)
Height:
Approx. 48 inches (122 cm)
Wheelbase:
Approx. 50.5 inches (128 cm)
Ground Clearance:
Approx. 10.25 inches (26 cm)
Dry Weight:
Approx. 570 lbs (258.5 kg)
Gross Vehicle Weight Rating Gvwr:
Not explicitly stated in product info; typically around 975 lbs (442 kg).
Front Rack Capacity:
100 lbs (45 kg)
Rear Rack Capacity:
200 lbs (90 kg)
Towing Capacity:
1050 lbs (476 kg)
Crash Test Ratings:
N/A (ATVs are not typically subjected to standardized crash testing like passenger vehicles)
Braking System:
Hydraulic disc brakes, front and rear. Specific caliper and rotor sizes detailed in the manual.
Lighting:
Dual halogen headlights, tail light, brake light.
Handlebars:
Ergonomic design with comfortable grip and control placement.
Operator Protection:
Standard handguards and footwells for rider protection.
Infotainment System:
Basic instrumentation cluster with speedometer, odometer, trip meter, fuel gauge, and indicator lights. No advanced infotainment features are standard.
Driver Assistance Features:
On-Demand True All-Wheel Drive (AWD) system enhances traction and control. Engine braking on deceleration.
Connectivity Options:
N/A
Oil Change Interval:
Typically every 100 hours or 6 months, with specific intervals detailed in the manual.
Air Filter Cleaning:
Recommended every 25 hours or as needed based on operating conditions.
Spark Plug Replacement:
Typically every 100 hours or annually.
Valve Adjustment Interval:
First inspection usually around 100-200 hours, then as needed. Specifics in the manual.
Engine Oil Type:
SAE 10W-50 Synthetic Oil recommended. Exact specification (API rating) in manual.
Engine Oil Capacity:
Approximately 2.1 US quarts (2.0 liters) with filter change.
Coolant Type:
Ethylene Glycol based antifreeze (specific mixture ratio detailed).
Brake Fluid Type:
DOT 3 or DOT 4 hydraulic brake fluid.
Transmission Fluid Type:
Polaris Variable Transmission Fluid (PVT Fluid) or equivalent is typically recommended for CVT applications.
Common Issues:
Potential issues can include belt wear in the CVT, occasional electrical connector corrosion in wet environments, and standard wear and tear on suspension components. The manual will provide troubleshooting for these and other potential problems.
Brand Heritage:
Polaris Industries is a well-established American manufacturer known for its pioneering role in the powersports industry, particularly with ATVs and snowmobiles, since its founding in 1954.
Model Evolution:
The Sportsman line has been a cornerstone of Polaris's ATV offerings since the early 1990s. The 400 H.O. model represents an evolution of Polaris's mid-size utility ATVs, incorporating advancements in engine technology, suspension design (IRS became standard), and drivetrain capabilities.
Production Location:
Primarily manufactured in the United States by Polaris Industries.
