Polaris Sportsman XP 550 & XP 550 EPS 2009 Service Manual ( P/N 9921973)

The 2009 Polaris Sportsman XP 550 and XP 550 EPS demand precise factory-authorized procedures for accurate diagnostics and maintenance. Official Polaris publication P/N 9921973 documents the specific EFI diagnostic routines for the ES550PLE engine system, giving technicians the exact reference material required for complex troubleshooting.

• Covers 2009 Polaris Sportsman XP 550 and XP 550 EPS models (variants A09ZN55AL, AQ, AS, AT, AX, FX and A09ZX55AC, AL, AQ, AS, AX)
• Official Polaris publication P/N 9921973
• Includes 12 wiring schematics and 15 torque-specification tables for engine, drivetrain, and chassis components
• 373-page digital manual

Engine, Drivetrain, and Electrical Systems

This workshop manual outlines the strict technical requirements for the Fuji 549cc single-cylinder engine. It moves logically from scheduled maintenance charts to full engine disassembly, detailing crucial steps like valve clearance adjustments and cylinder head torque sequences. You get direct access to the numbers that matter in the bay. Electrical sections break down the EFI control unit, T-MAP sensor testing procedures, and ignition coil resistance thresholds. This removes the guesswork when tracking down elusive electrical faults on the XP platform.

Specification Highlights and Reference Data

Accurate bench work relies on exact OEM figures. The documentation covers cooling system capacities, internal engine fastener torque values, and suspension alignment guidelines for the dual A-arm configuration. Cylinder compression is rated at 70–90 psi, while fuel system pressure requires a steady 43 psi. The spark plug gap must be set at 0.035 in. (0.90 mm). You will also find reference values for the ECU operating voltage, which requires a minimum of 7.0 volts. Working on high-pressure fuel and electrical systems carries inherent risks. The specifications provided here give an overview of the manual's depth; always rely on the complete OEM procedures and proper workshop safety protocols before beginning any diagnostic or tear-down work.