Segment:
Mid-size utility ATV segment
Target User:
Recreational riders, hunters, and light utility users
Competitors:
Honda FourTrax, Yamaha Kodiak, Suzuki KingQuad (in their respective 400cc classes of the era)
Utility:
Renowned for its robust build and versatile performance in varied terrain
Ride Comfort:
Independent rear suspension (IRS) offered on many models for improved ride quality
Engine:
Complete engine overhaul, diagnosis, and repair
Fuel System:
Carburetor tuning and repair, fuel pump, fuel lines
Ignition System:
CDI, spark plugs, ignition coil, troubleshooting
Transmission:
PVT (Polaris Variable Transmission) belt service, clutch inspection, gearbox
Drivetrain:
Front and rear differentials, driveshafts, CV joints, axle maintenance
Suspension:
Front and rear shocks, A-arms, bushings, alignment
Steering:
Handlebar assembly, tie rods, steering shaft, lubrication
Brakes:
Hydraulic brake system, calipers, master cylinders, bleeding procedures, pad replacement
Electrical System:
Wiring diagrams, battery, charging system, lighting, starter motor, switchgear
Cooling System:
Radiator, fan, coolant, thermostat
Exhaust System:
Muffler, exhaust pipe, gasket replacement
Body And Chassis:
Frame inspection, plastic body panel removal and installation, seat, racks
Maintenance:
Scheduled maintenance, oil changes, filter replacements, lubrication points
Troubleshooting:
Diagnostic procedures for common problems, symptom-based troubleshooting guides
Repair:
Step-by-step repair instructions for all major components
Rebuild:
Complete engine and transmission rebuild procedures
Diagnostics:
Electrical system diagnostics, fuel system testing, engine performance checks
Wiring Diagrams:
Detailed electrical wiring schematics for all circuits
Depth:
Comprehensive, from basic adjustments to complete engine rebuilds
Illustrations:
Includes photos and illustrations for visual guidance
Detail Level:
Highly detailed, with torque specifications, clearances, and service limits
Engine Type:
4-stroke, single-cylinder
Displacement:
376cc (Approximate, may vary slightly by specific sub-model)
Bore X Stroke:
To be specified in manual
Cooling System:
Liquid-cooled
Valve Train:
SOHC (Single Overhead Cam), 4-valve
Horsepower:
Approx. 20-25 HP (at flywheel, estimated for 2005 model)
Torque:
To be specified in manual
Redline:
To be specified in manual
Carburetor:
Mikuni BSR34 (or similar, model dependent)
Fuel Type:
Unleaded gasoline, minimum 87 octane
Fuel Tank Capacity:
3.2 US gallons (12.1 Liters), with reserve
Type:
Polaris Variable Transmission (PVT) with Engine Braking
Gear Selection:
High, Low, Neutral, Reverse
Drive Modes:
On-Demand All-Wheel Drive (AWD) / 2WD selectable
Belt Material:
Composite belt (specification in manual)
Gear Reduction:
Primary and secondary reduction ratios specified in manual
Atv Safety Standards:
Adheres to ANSI/SVIA standards (as applicable)
Braking System:
Hydraulic disc brakes, front and rear
Engine Braking:
Standard feature for downhill control
Lighting:
Dual 35W headlights, 8W taillight/stoplight
Choke:
Manual choke for cold starting
Display Features:
Digital instrumentation with speedometer, odometer, trip meter, tachometer, fuel gauge, and gear indicator.
Braking Assist:
Engine braking provided by the PVT system.
Charging Port:
Standard 12V accessory outlet for charging electronics.
Engine Oil Change:
Every 100 hours or annually
Air Filter Cleaning:
Every 50 hours or as needed in dusty conditions
Spark Plug Replacement:
Every 200 hours or annually
Transmission Oil Change:
Every 200 hours or annually
Engine Oil Type:
Polaris Premium 2W-50 Synthetic 4-Stroke Oil (or equivalent API SG, JASO MA approved oil)
Engine Oil Capacity:
Approx. 1.9 US quarts (1.8 Liters) with filter change
Transmission Gear Oil Type:
Polaris Demand Drive Fluid (for front differential) and Polaris Glacier Heavy Duty Lubricant (for rear gearbox) - specific grades per manual
Coolant Type:
Ethylene Glycol based antifreeze, 50/50 mix with distilled water
Pvt Belt Wear:
Early belt wear or slippage can occur with aggressive use or improper tensioning. Manual covers belt inspection and replacement procedures.
Carburetor Jetting:
May require adjustment based on altitude or modifications. Manual provides detailed carb tuning guidance.
Suspension Bushings:
Bushings can wear over time, leading to play and noise. Manual details inspection and replacement of suspension components.
Manufacturer:
Polaris Industries, founded in 1954, a pioneer in snowmobiles and ATVs.
Sportsman Line:
The Sportsman line has been a cornerstone of Polaris' ATV offerings, known for its comfort, utility, and 4x4 capabilities. The 400 model provided a balance of power and accessibility.
Manufacturing Location:
Spirit Lake, Iowa, USA (Primary Polaris ATV manufacturing facility)