Vehicle Category:
Sport ATV (All-Terrain Vehicle)
Target Audience:
Enthusiasts seeking a high-performance, competition-oriented ATV for motocross and aggressive trail riding.
Key Competitors:
Yamaha YFZ450, Honda TRX450R, Suzuki LT-R450, Kawasaki KFX450R
Performance Focus:
Designed for agility, power, and handling on closed courses and challenging terrain.
Suspension Design:
Long-travel, independent front suspension and a swingarm rear suspension for superior ground clearance and ride quality.
Braking System:
Hydraulic disc brakes on all wheels for strong and consistent stopping power.
Primary Coverage:
Owner's Manual
Secondary Coverage:
Basic maintenance, operation, safety, and specifications
Estimated Page Count:
150-200 pages (typical for this type of manual)
Manual Type:
Owner's Manual (digital equivalent)
Powertrain:
Engine, drivetrain, transmission, final drive
Chassis:
Suspension, steering, brakes, wheels, tires
Electrical:
Lighting, ignition, starting system, charging system, basic controls
Bodywork:
Body panels, seating, storage, controls, instrumentation
Operator Controls:
Handlebars, levers, pedals, switches, gauges
Operation:
Pre-ride inspection, starting, stopping, shifting, general riding techniques
Maintenance:
Lubrication points, fluid checks, tire pressure, air filter cleaning/replacement, spark plug checks, chain adjustment
Troubleshooting:
Basic troubleshooting for common operational issues, warning light interpretation
Safety:
Riding safety precautions, protective gear recommendations, hazard warnings
Specifications:
Key vehicle specifications, fluid types, capacities, recommended tire sizes
Depth Level:
Owner-level, focusing on daily operation and basic maintenance. Does not cover in-depth mechanical repair or advanced diagnostics.
File Type:
Portable Document Format (PDF)
Searchability:
Typically searchable text, allowing for quick information retrieval
Printability:
High-resolution, suitable for printing on standard office printers
Binding Type:
Not applicable (digital format)
Paper Type:
Not applicable (digital format)
Engine Type:
Liquid-cooled, DOHC, 4-stroke single-cylinder
Bore X Stroke:
95 mm x 63.4 mm (typical for this era of 450cc singles)
Compression Ratio:
11.3:1 (typical, check manual for exact)
Horsepower:
Approx. 40-45 HP (peak, dependent on tuning and exhaust; actual figures may vary. Manual will provide official spec.)
Torque:
Approx. 27-30 lb-ft (peak, dependent on tuning. Manual will provide official spec.)
Fuel Delivery:
Mikuni BSR42 carburetor (common for this model, check manual for exact)
Fuel Type:
Unleaded gasoline, minimum 87 octane
Safety Certification:
Off-road use only; not street legal. Compliance with EPA emissions and noise regulations for ATVs.
Braking System Details:
Dual hydraulic disc front brakes, Single hydraulic disc rear brake
Parking Brake:
Rear caliper integrated parking brake
Lighting:
Dual headlights with bright/dim, LED tail/brake light
Throttle Limiter:
Thumb throttle with adjustable travel limiter (may be present)
Kill Switch:
Engine stop switch easily accessible from handlebars
Oil Change Interval:
Every 100 hours or 6 months (typical, refer to manual for precise interval)
Air Filter Inspection:
Every 25 hours or monthly
Spark Plug Check:
Every 100 hours or annually
Chain Adjustment Check:
Every 25 hours or monthly
Engine Oil Type:
API SG, JASO MA, SAE 10W-40 (verify exact specification in manual)
Engine Oil Capacity:
Approx. 2.2 US quarts (2.1 L) with filter change (verify in manual)
Coolant Type:
Ethylene glycol based antifreeze/coolant with corrosion inhibitors (e.g., Polaris Premium All-Season Coolant)
Brake Fluid Type:
DOT 4 hydraulic brake fluid
Common Wear Items:
Tie rod ends, ball joints, wheel bearings, chain and sprockets are common wear items on sport ATVs used aggressively.
Carburetor Tuning:
Carburetors may require adjustment based on altitude and temperature changes, especially if modified.
Polaris Atv Legacy:
Polaris has a long history in the ATV market, known for innovation and performance-oriented vehicles, particularly in utility and sport segments.
Outlaw Lineage:
The Outlaw line was Polaris's entry into the sport ATV market, directly competing with established Japanese manufacturers. The 450 MXR specifically targets the motocross segment with a powerful single-cylinder engine and performance suspension.
Production Period:
The Outlaw 450 MXR was produced for a limited period in the late 2000s to cater to the racing and sport enthusiast market.