🏷️ Basic Information

Make:

Polaris

Model:

Sportsman 300 / 400 HO

Year:

2009

Vin Decoder Prefix:

4TVS

👋 Introduction

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:

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:

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 Areas:

Comprehensive service and repair for Polaris Sportsman 300 and 400 HO models.

Page Count:

Estimated 400-600 pages (typical for this level of detail).

Manual Type:

Service Repair Manual

Language:

English

Format:

PDF Download

📖 Manual Coverage

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 Included:

Diagnostic procedures, disassembly, inspection, repair, reassembly, adjustments, component replacement, routine maintenance, tune-up specifications, torque values, wiring diagrams, special tool recommendations.

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 Format:

Searchable PDF

Print Quality:

High-resolution scans of original factory documentation with clear diagrams and text.

Binding Type:

N/A (Digital Download)

Paper Type:

N/A (Digital Download)

⚙️ Engine Specifications

Engine Type:

Liquid-cooled, 4-stroke, SOHC, 2-valve

Displacement 300:

278cc

Displacement 400 Ho:

375cc

Horsepower 300:

Approx. 20 HP

Horsepower 400 Ho:

Approx. 28 HP

Fuel Delivery:

Carbureted (Mikuni BSR42 for 400 HO, Keihin CVK32 for 300)

Fuel Type:

Unleaded gasoline, 87 octane minimum

Ignition System:

Electronic Ignition

Cooling System:

Liquid-cooled

🔧 Transmission

Transmission Type:

Automatic PVT (Polaris Variable Transmission) with Engine Braking

Drive Modes:

2WD/AWD (True On Demand)

Clutch System:

Heavy-duty V-belt

📐 Dimensions

Length:

Approx. 82 in (208.3 cm)

Width:

Approx. 46 in (116.8 cm)

Height:

Approx. 48 in (121.9 cm)

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)

Ground Clearance:

11 in (27.9 cm)

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

Safety Ratings:

N/A (ATVs do not receive NCAP or NHTSA ratings like passenger vehicles).

Active Safety Features:

True On Demand AWD, Engine Braking System (EBS).

Passive Safety Features:

Handlebar guards, integrated lighting, operator-centric design for stability.

💡 Technology Features

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 Features:

Limited to the functionality of the AWD system and EBS.

Connectivity Options:

N/A

🔧 Maintenance

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.

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.

Common Issues:

Wear on suspension components, drive belt longevity under heavy use, potential carburetor tuning issues, battery maintenance, occasional electrical connector corrosion.

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 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:

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 Years Covered:

2009 model year for both Sportsman 300 and 400 HO.

🏆 Awards & Recognition

Recognitions:

Polaris Sportsman line frequently recognized for utility, comfort, and overall performance in enthusiast reviews and comparisons. Specific awards for the 2009 300/400 HO are not widely cataloged as distinct models but contribute to the overall reputation of the Sportsman series.