2000 Yamaha YZ250(M)/LC, YZ250LC, YZ250M1 Owner's Service Manual PDF

Yamaha YZ250 2000 Owner's Service Manual Features

• Covers 2000 Yamaha YZ250LC, YZ250M1, and YZ250(M) competition motocross bikes, detailing engine, chassis, and electrical system specifications
• Official Yamaha publication 1st Edition, June 1999, form number 5HC-28199-30
• Includes 12 complete maintenance and torque specification tables, exploded-view diagrams for major assemblies, and diagnostic electrical resistance charts
• Files are accessible from your device as soon as the order is placed
• Stored against your account so you can retrieve it after a hard-drive loss
• Laid out for standard letter and A4 printing
• Full-text search finds any part number in seconds
• This 1999 first edition is the definitive factory reference for the 2000 YZ250 model year, providing the exact tuning values used for original machine setup

Document Scope and Technical Data

Manual Chapter Overview

The 2000 Yamaha YZ250 owner's service manual serves as the primary technical reference for owners and mechanics maintaining these competition machines. Coverage begins with vital identification data and machine descriptions, followed by extensive chapters on engine disassembly and chassis maintenance. Readers will find detailed sections on clutch and primary gear service, power valve governor inspection, and cooling system care. The electrical chapter provides critical ignition system reference values, while the tuning section offers guidance for optimizing engine performance and chassis behavior for various track conditions.

Specifications and Reference Values

Technical data is provided for precision adjustments across all major systems. Maintenance specifications include cylinder head combustion chamber capacity of 22.0 cm³ and piston ring end gap standards of 0.40–0.55 mm. The CDI magneto source coil 1 resistance is specified at 720–1,080 ohms at 20°C in the electrical data section. Transmission oil capacity is documented at 0.75 liters for periodic changes. Primary drive gear torque is set at 55 Nm, and the cylinder head nut torque is specified at 28 Nm. This technical documentation provides the factory-recommended clearances, fluid capacities, and torque settings essential for the maintenance of the 2000 Yamaha YZ250 range.