2000 Yamaha YZ250(M)/LC, YZ250LC, YZ250M1 Owner's Service Manual (P/N 5HC-28199-30)

Getting your YZ250 ready for the track means relying on exact factory data. No guesswork. Just accurate specs. This official 2000 Yamaha YZ250 Owner's Service Manual gives mechanics and DIY riders the exact tuning values used for the original machine setup. Whether you are rebuilding the top end or dialing in the suspension for race day, this reference provides the technical depth you need for the job. Safety is paramount in the workshop. Always review the fundamental safety guidelines outlined in the introductory chapters before tearing down major components.

Core Features & Accessibility

• Covers the 2000 YZ250LC, YZ250M1, and YZ250(M) competition motocross bikes.
• Contains 12 complete maintenance and torque specification tables, plus clear exploded-view diagrams for major assemblies.

Document Scope & Technical Data

Inside, the manual breaks down every major system on your dirt bike. You get extensive walk-throughs covering engine disassembly, chassis maintenance, and cooling system care. Dig into specific chapters for clutch and primary gear service, or check the electrical section for critical ignition system reference values and diagnostic resistance charts.

Need exact numbers? The specifications chapter provides the factory-recommended clearances, fluid capacities, and torque settings essential for precision adjustments. Key data points covered include:

• Cylinder head combustion chamber capacity: 22.0 cm³
• Piston ring end gap: 0.40–0.55 mm
• CDI magneto source coil 1 resistance: 720–1,080 ohms (at 20°C)
• Transmission oil capacity: 0.75 liters
• Primary drive gear torque: 55 Nm
• Cylinder head nut torque: 28 Nm

This 1st Edition publication (June 1999, form number 5HC-28199-30) remains the definitive factory reference for maintaining and restoring the 2000 YZ250 model line.