2002 Yamaha YZ250(P)/LC Owner's Service Manual

Yamaha YZ250(P)/LC 2002 Service Manual

• Covers 2002 Yamaha YZ250 motocross competition bikes, including YZ250P1 and YZ250LC variants
• Official Yamaha publication P/N 5NX-28199-30, 1st Edition June 2001
• Includes 124 exploded-view diagrams, 2 technical schematic pages, and 7 detailed torque specification tables
• Delivered as a direct download the moment payment clears
• Full-text search finds any part number in seconds
• The 2001 first edition provides the baseline factory build specifications and maintenance standards required for the 2002 YZ250 model year release

Document Scope and Technical Reference

This manual provides comprehensive technical data for the maintenance and inspection of the Yamaha YZ250 motocross machine. The documentation outlines essential operational features, starting procedures, and routine maintenance intervals across all systems, from the liquid-cooled 2-stroke engine to the link-type monocross suspension.

Specification and Assembly Data

Detailed torque tables list the required tightening force for engine, chassis, and electrical components to aid in accurate assembly. Reference values for the engine include compression ratios of 9.1–10.6:1 and piston clearance standards of 0.045–0.050 mm. The manual also documents fluid capacities, such as the 1.20-liter coolant volume and 0.80-liter transmission oil total amount, providing necessary data for regular maintenance. For more information on what factory workshop documentation is structured to provide, refer to the manufacturer data tables.

Note: This page is a contents overview for the manual. It does not provide repair or diagnostic instructions. This official 100-page Yamaha OEM workshop manual covers the 2002 YZ250(P)/LC, documenting engine, chassis, electrical, and fuel-injection specifications for the 5NX-series competition motocross build.