Market Segment:
Entry-level to mid-range utility/recreational ATV, known for its reliability and user-friendliness.
Competitors:
Honda FourTrax 300/350, Yamaha BearTracker/Grizzly 350, Kawasaki Bayou 300/Brute Force 300, Suzuki King Quad 300.
Key Features:
Proven Polaris 330cc engine, capable suspension, reliable drivetrain, ease of operation, strong aftermarket support.
Manual Value Proposition:
Essential for owners seeking to perform maintenance, repairs, and diagnostics, saving on labor costs and ensuring proper upkeep.
Engine System:
Engine disassembly, assembly, inspection, repair, tuning, and diagnostics.
Fuel System:
Carburetor system (likely Keihin), fuel pump, fuel lines, fuel filter, and tank maintenance.
Cooling System:
Air cooling system (if applicable) or liquid cooling system components, radiator, fan, coolant.
Exhaust System:
Muffler, exhaust pipe inspection and replacement.
Ignition System:
Spark plug, ignition coil, CDI unit, wiring, timing adjustments.
Transmission System:
Drive clutch, driven clutch, belt inspection and replacement, internal transmission components (if applicable).
Drivetrain System:
Drive shafts, CV joints, differential (if applicable), final drive, wheel hubs.
Suspension System:
Front and rear suspension arms, shock absorbers, bushings, ball joints, wheel bearings.
Steering System:
Handlebars, steering shaft, tie rods, steering knuckles, linkage adjustments.
Braking System:
Front and rear brake calipers, brake pads, brake rotors, brake lines, master cylinder, fluid bleeding.
Electrical System:
Battery, starter motor, charging system (stator, regulator/rectifier), lighting, switches, wiring diagrams.
Frame And Bodywork:
Frame inspection, body panel removal and installation, fenders, racks, seating.
Routine Maintenance:
Oil changes, filter replacements, lubrication, spark plug checks, tire pressure, brake adjustments.
Troubleshooting:
Diagnostic procedures for common and uncommon issues, symptom-based troubleshooting guides.
Component Rebuilds:
Engine rebuilds, carburetor overhauls, transmission repairs, brake caliper rebuilding.
Wiring Diagrams:
Detailed electrical system schematics for fault finding and repairs.
Torque Specifications:
Precise torque values for critical fasteners throughout the ATV.
Technical Depth:
Comprehensive, covering basic maintenance to full engine and component overhauls. Suitable for DIY mechanics and professional technicians.
Engine Type:
4-stroke, air-cooled single cylinder
Bore X Stroke:
Typically 78mm x 69mm (verify specific model year documentation for exact figures)
Compression Ratio:
Approximately 9.2:1 (verify specific model year documentation for exact figures)
Valve Train:
SOHC (Single Overhead Cam), 2 valves
Horsepower:
Estimated 18-20 HP (at crankshaft, typical for this displacement and configuration)
Torque:
Estimated 18-20 lb-ft (at crankshaft, typical for this displacement and configuration)
Carburetor Model:
Keihin 34mm (typical, specific model may vary)
Fuel Type:
Unleaded gasoline, 87 octane or higher
Fuel Tank Capacity:
Approximately 3.2 US gallons (12.1 Liters)
Cooling Method:
Air-cooled with fan assist (check specific model for fan inclusion)
Transmission Type:
Automatic PVT (Polaris Variable Transmission)
Drive System:
Shaft Drive, 2WD (Rear Wheel Drive)
Clutch System:
Primary clutch (Drive Clutch) and Secondary clutch (Driven Clutch) with belt drive.
Gear Selection:
Usually High (H), Low (L), Neutral (N), Reverse (R), Park (P) (verify specific model shifter mechanism).
Length:
Approximately 76 inches (193 cm)
Width:
Approximately 46 inches (116.8 cm)
Height:
Approximately 45 inches (114.3 cm)
Wheelbase:
Approximately 50 inches (127 cm)
Dry Weight:
Approximately 555 lbs (252 kg)
Ground Clearance:
Approximately 7.5 inches (19 cm)
Front Rack Capacity:
Approximately 50 lbs (22.7 kg)
Rear Rack Capacity:
Approximately 100 lbs (45.4 kg)
Front Tire Size:
AT 25 x 8-12 (verify specific model documentation)
Rear Tire Size:
AT 25 x 10-12 (verify specific model documentation)
Infotainment System:
Basic; typically no integrated infotainment system beyond basic instrumentation.
Driver Assistance Features:
None (standard mechanical systems).
Connectivity Features:
None.
Instrument Cluster:
Analog speedometer, odometer, trip meter, neutral indicator, high beam indicator, oil pressure warning light, engine temperature warning light (if applicable).
Engine Oil Change Interval:
Every 100 hours or 12 months (refer to manual for precise interval based on usage).
Air Filter Cleaning Interval:
Every 25 hours or as needed based on conditions; replace as necessary.
Spark Plug Check Interval:
Every 100 hours or 12 months.
Clutch Belt Inspection Interval:
Inspect every 50 hours; replace as needed based on wear and tear.
Engine Oil Type:
SAE 5W-50 Synthetic (Polaris recommends their own brand, but a quality API SG or higher 5W-50 synthetic is generally suitable).
Engine Oil Capacity:
Approximately 2.0 US quarts (1.9 Liters) with filter change (verify in manual).
Brake Fluid Type:
DOT 4 Hydraulic Brake Fluid.
Final Drive Oil Type:
Polaris Demand Drive Fluid or SAE 75W-90 Gear Oil (verify in manual for specific transmission/differential).
Common Wear Items:
Drive belt (PVT system), ball joints, tie rod ends, wheel bearings, brake pads, bushings due to typical off-road use.
Engine Carburetion:
Carburetor adjustments or cleaning may be required over time due to fuel quality or debris.
Polarishistory:
Polaris Industries is a long-standing American manufacturer of powersports vehicles, founded in 1954, known for innovation in ATVs, snowmobiles, and motorcycles.
Trail Boss Lineage:
The Trail Boss series has been a staple in Polaris's ATV lineup, evolving over the years to offer reliable performance and comfort for recreational and utility use.
Manufacturing Location:
Polaris ATVs are typically manufactured in the USA.
