The 2009 Sportsman 400 H.O. is a mid-size all-terrain vehicle designed for both recreational riders and utility users. This capable ATV features a single-cylinder, 4-stroke, liquid-cooled engine with a displacement of 375.0 cc, delivering approximately 25 horsepower. Key highlights of the Sportsman 400 H.O. include its independent rear suspension (IRS) for enhanced ride comfort and terrain handling, and renowned on-demand All-Wheel Drive (AWD) system for optimal traction. With a towing capacity of 1,500 lbs and robust rack capacities, it is engineered for versatility and reliability in various off-road conditions.
This comprehensive Service Repair Manual provides essential information for the maintenance, diagnosis, and repair of your 2009 Sportsman 400 H.O. It covers a wide range of systems, including the engine, transmission (PVT system), brakes, steering, suspension, and electrical components, complete with detailed procedures, torque specifications, and wiring diagrams. The manual is designed to assist owners, service technicians, and mechanics in performing routine maintenance, troubleshooting common issues, and executing complex repairs, ensuring the longevity and optimal performance of the ATV.
Model:
Sportsman 400 H.O.
Vehicle Type:
All-Terrain Vehicle (ATV)
Engine Configuration:
Single-cylinder, 4-stroke
Market Segment:
Mid-size utility ATV, targeted at recreational riders and utility users seeking a balance of performance, capability, and value.
Key Competitors:
• Can-Am Outlander 400
• Arctic Cat 400 TRV
• Honda FourTrax Foreman 4x4
• Yamaha Kodiak 400
Model Highlights:
The Sportsman 400 H.O. is known for its independent rear suspension (IRS), Polaris's on-demand All-Wheel Drive (AWD) system, and a capable, reliable engine.
Target Audience:
Polaris Sportsman 400 H.O. 2009 owners, service technicians, and mechanics.
Coverage Areas:
• General Information
• Maintenance
• Engine
• Body
• Steering
• Suspension
• Final Drive
• Transmission (CVT System)
• Brakes
• Electrical System
• Wiring Diagrams
Delivery Method:
Instant Digital Download via Email
Compatibility:
Win95/98/ME/XP/vista/7/8/Linux/MAC, iOS, Android
Manual Type:
Service Repair Manual
Systems Covered:
• Engine mechanical and electrical systems
• Fuel and exhaust systems
• Cooling system
• Lubrication system
• Ignition system
• Starting and charging systems
• Drivetrain (including CVT and final drive)
• Braking system (hydraulic and mechanical components)
• Steering linkage and components
• Front and rear suspension systems
• Chassis and frame
• Body panels and trim
• Wheels and tires
• Electrical components, wiring, and troubleshooting
Procedures Included:
• Routine maintenance and servicing
• Troubleshooting common issues
• Component disassembly, inspection, and reassembly
• Torque specifications for fasteners
• Diagnostic procedures
• Repair and replacement of parts
• Adjustment procedures
• Electrical system diagnostics and repair
• CVT belt inspection and replacement
• Brake system bleeding and pad replacement
Technical Depth:
Comprehensive, suitable for professional technicians and experienced DIY mechanics. Covers detailed diagnostics, repair procedures, and specifications for all major components.
File Format Detail:
Digital Download, typically provided in a compressed WinRAR archive containing a PDF file.
Print Quality:
High-resolution PDF suitable for printing individual pages or the entire manual. Includes clear photos and illustrations.
Searchability:
Text-searchable PDF allows for quick access to specific information.
Binding Type:
N/A (Digital Product)
Paper Type:
N/A (Digital Product)
Engine Type:
4-stroke, SOHC, 3-valve
Displacement:
375.0 cc (22.9 cubic inches)
Bore X Stroke:
84.0 mm x 68.0 mm
Horsepower Estimated:
Approximately 25 hp (varies slightly by source and dyno testing)
Cooling System:
Liquid-cooled
Fuel Delivery:
Carbureted (Mikuni BSR42)
Oil Type:
Polaris Premium 4 Synthetic 10W-50 (or equivalent API SG or higher)
Oil Capacity:
Approx. 2.1 US quarts (2.0 Liters) with filter change
Transmission Type:
Automatic PVT (Polaris Variable Transmission) with Engine Braking
Drive System:
Shaft Drive, On-Demand AWD
Gear Selection:
High, Low, Neutral, Reverse
Cvtr Belt Spec:
Refer to manual for specific belt part number and inspection/replacement intervals. Example: Polaris primary clutch drive belt.
Transmission Fluid Type:
Polaris AGL Synthetic Gearcase Lubricant (or SAE 90W hypoid gear oil)
Transmission Fluid Capacity:
Refer to manual for precise capacity for gearcase.
Length:
83 in. (210.8 cm)
Height:
47 in. (119.4 cm)
Dry Weight:
600 lbs (272 kg)
Ground Clearance:
11.25 in. (28.6 cm)
Towing Capacity:
1,500 lbs (680 kg)
Rack Capacity Front:
200 lbs (91 kg)
Rack Capacity Rear:
400 lbs (181 kg)
Front Tire Size:
25 x 8-12
Rear Tire Size:
25 x 10-12
Wheelbase:
50.5 in. (128.3 cm)
Braking System Type:
Hydraulic disc brakes (front and rear)
Parking Brake:
Parking brake mechanism integrated into rear caliper or transmission.
Lighting:
Dual Halogen headlights, Taillight/Brake light
Variable Transmission:
Polaris Variable Transmission (PVT) system provides automatic shifting based on engine RPM and load, optimizing power delivery and engine braking.
All Wheel Drive:
On-Demand All-Wheel Drive (AWD) engages the front drive wheels automatically when rear wheel traction is lost.
Independent Suspension:
Independent Rear Suspension (IRS) provides a smoother ride and better wheel articulation over rough terrain compared to solid axles.
Ignition System:
Electronic Ignition (CDI)
Charging System:
Stator and DC rectifier/regulator system
Oil Change Interval:
Every 100 hours or 6 months (refer to manual for exact recommendation)
Air Filter Cleaning:
Inspect and clean every 25 hours, replace as needed.
Spark Plug Replacement:
Inspect at 100 hours, replace every 200 hours (or as needed based on condition).
Cvtr Belt Inspection:
Inspect at 50 hours, replace as recommended or if damaged.
Coolant Type:
Polaris Premium 2-Cycle Oil mixed with water, or a 50/50 mix of antifreeze and distilled water (refer to manual for specific coolant type and mixture ratio).
Brake Fluid Type:
DOT 3 or DOT 4 brake fluid
Common Wear Items:
• CVT belt wear
• Brake pad and rotor wear
• Wheel bearing wear
• Tie rod end wear
• Suspension bushings
Importance Of Maintenance:
Regular maintenance according to the manual's schedule is crucial for optimal performance, longevity, and reliability of the ATV, especially for the CVT and drivetrain components.
Brand Focus:
Polaris Industries Inc. is a long-standing American manufacturer known for its leadership in the powersports industry, including ATVs, snowmobiles, and motorcycles.
Sportsman Lineage:
The Sportsman line has been a cornerstone of Polaris's ATV offerings, evolving from basic utility models to more feature-rich and performance-oriented machines. The 400 H.O. represents a mid-range offering within this popular series.
Production Period:
The Sportsman 400 H.O. was produced across several model years, with 2009 being a specific iteration of this engine and chassis platform.
Industry Awards:
While specific awards for the 2009 Sportsman 400 H.O. are not readily available, the Polaris Sportsman line generally receives positive reviews for its utility and off-road capabilities, often cited in consumer and industry publications for value and performance.
