2001-2006 Yamaha YZ250L(N)/LC Service Manual

2001–2006 Yamaha YZ250 Service Manual Documentation

• Covers 2001–2006 Yamaha YZ250LC, YZ250N1, and YZ250(N) competition-use motocross models, including detailed regional variants for USA, Canada, Europe, Australia, and New Zealand.
• Official Yamaha publication P/N 5MW-28199-30, first edition published July 2000.
• Contains 88 pages of technical documentation, including exploded-view assembly diagrams, maintenance specification charts, and detailed torque-check value tables.
• Accessible from your device as soon as the order is placed.
• Laid out for standard letter and A4 printing.
• This 2001–2006 Yamaha YZ250 service manual provides factory-specified technical data and procedural framework for competition-focused maintenance of the YZ250 chassis and liquid-cooled 2-stroke powerplant.

Document Scope and Technical Data

This factory manual outlines operational, inspection, and maintenance procedures for the 2001–2006 Yamaha YZ250 series. It details core components including the transmission, chassis, ignition, and fuel systems. The manual provides essential identification data for the model label, frame serial number, and engine serial number. Documentation includes exploded views for disassembly and reassembly stages, clearly marking grease points and specified torque requirements to aid in mechanical maintenance.

Specification Highlights

Performance metrics and wear limits are documented for major engine and chassis systems. Combustion chamber capacity is specified at 21.5 cm³ with a cylinder head warp limit of 0.03 mm. The engine oil periodic change volume is documented at 0.75 liters. Drive chain slack is maintained at 40~50 mm. The clutch boss nut requires a specified torque of 75 Nm. Coolant capacity for the cooling system is listed as 1.20 liters. A dedicated torque table provides bolt-specific values for items like the cylinder head nuts at 25 Nm and primary drive gear at 55 Nm. All service data shown here is for reference only — qualified technicians and the original OEM documentation remain the authoritative source for any hands-on work. what an OEM service publication covers.

An official 2001–2006 Yamaha YZ250 service manual documenting complete technical specifications, torque values, and maintenance procedures for the 5MW-series motocross machines, intended for experienced riders and professional workshop environments.