2008 Polaris Outlaw 450 MXR / 525 S / IRS Service Manual
Polaris Models Covered & Key Technical Specifications
Models: Outlaw 450 MXR, Outlaw 525 S, Outlaw 525 IRS
Sub-models / Variants: MXR, S, IRS
Model Years: 2008
Technical Data:
- Engine displacement: 448 cc (Outlaw 450 MXR), 510 cc (Outlaw 525 S, Outlaw 525 IRS)
- Engine type: KTM Liquid-cooled, single cylinder, SOHC, 4-stroke
- Engine models: ES045KLE012, ES051KLE012, ES051KLE013
- Compression ratio: 11:1
- Transmission: Manual 5-Speed w/Reverse
- Coolant capacity: 2.25 qts. / 2.1 ltr
- Oil capacity: 1.7 qts. / 1.6 ltr
- Fuel capacity: 3.9 gal. / 14.8 ltr
- Alternator output: 200W @ 3000 RPM
- Spark plug: NGK DCPR8E
- Spark plug gap: 0.6 mm (.024 in.)
- Engine oil drain plug torque: 15 ft. lbs. (20 Nm)
- Overall length: 71.5 in. (182 cm)
Polaris Manual Features & Content Preview
- Covers 2008 Polaris Outlaw 450 MXR, Outlaw 525 S, and Outlaw 525 IRS models, including liquid-cooled single-cylinder variants
- Official OEM publication P/N 9921184 and related technical documentation
- Contains 56 exploded-view diagrams and 15 detailed torque specification tables
- Delivered as a direct, instant download the moment payment clears
- Indexed PDF search covers every chapter, appendix, and repair procedure
- Suitable for printing individual sections straight to the shop floor
- This 271-page factory-authorized reference includes model-specific jetting charts and suspension tuning data for both solid axle and independent rear suspension units
Technical Coverage and Maintenance Details
This factory service publication details the 2008 Polaris Outlaw 450 MXR, 525 S, and 525 IRS. The document organizes content into primary chapters that outline general information, routine maintenance schedules, engine removal steps, fuel system tuning, alongside body, steering, and suspension service. The maintenance section highlights specific intervals for oil changes, valve clearance checks, and drive chain adjustments. Electrical chapters detail battery maintenance and charging procedures for standard and remote-terminal configurations. Proper shop safety protocols and manufacturer-specified precautions should always be strictly observed before beginning any service work to prevent injury or equipment damage.
Specification Highlights
Engine cooling system capacity for all 2008 Outlaw models is documented at 2.25 quarts (2.1 liters). The specified torque for the engine oil drain plug is 15 ft. lbs. (20 Nm) as listed in the engine service data. Valve clearance for the intake and exhaust is specified at 0.005 inches (0.127 mm) in the cylinder head maintenance table. The manual provides extensive jetting charts tailored to specific altitudes and ambient temperatures. Knowing the exact fastener torque requirements and having the right tools is critical for a successful engine overhaul or routine repair work. An official 271-page Polaris OEM service manual covering the 2008 Outlaw 450 MXR, 525 S, and 525 IRS, documenting engine, chassis, electrical, and suspension specifications for the KTM-powered build.
Document Reference: Polaris publication numbers: 9921184 (Owner's Manual), 9921390, 9921327, 9920972, 9920973 (Parts Manuals)
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