2004-2005 Polaris Scrambler 500 Factory Service Manual (P/N 9919481)

• Covers 2004 and 2005 Polaris Scrambler 500 4x4 ATVs equipped with the liquid-cooled SOHC engine.
• Official Polaris publication P/N 9919481, detailing the A04BG50AA and A05BG50AA/FA chassis and EH50PLE engine configurations.
• Includes 100 pages of factory technical content featuring engine exploded views, cooling system flow diagrams, and specialized tool identification.
• Outlines standardized fastener torque values, severe-use service intervals, and metric-to-SAE conversion tables.

Contents Summary

This factory publication breaks down maintenance and unit repair for the Scrambler 500 into ten technical chapters. It starts with the basics. You get serial number locations and exact lubrication charts for all major driveline components. From there, it dives into routine and severe-use periodic maintenance to keep the machine on the trail.

The manual also maps out complete engine and drivetrain procedures. Major sections cover engine removal, top-end disassembly, cylinder honing, and crankshaft inspection, backed by specialized fluid flow charts. You will find carburetor jetting specs, front and rear gearcase service details, steering linkage adjustments, and electrical system diagnostics, including charging specifications and starter drive maintenance.

Specification Previews

Having the right specs on hand prevents guesswork in the shop. This reference provides critical clearances and baseline values essential for accurate component rebuilding. For example, cylinder head warpage has a strict service limit of 0.05 mm, and intake valve clearance is set at 0.15 mm. The EH50PLE engine cooling system takes 2.13 liters of fluid, with the radiator cap relief pressure rated at 13 PSI. At operating temperature, engine oil pressure should test at 20 PSI at 5500 RPM. Always verify these baseline figures against the complete safety protocols and procedures outlined in the factory manual before beginning any diagnostic or mechanical work to prevent component damage or injury.