2000-2002 Yamaha YZ426F, YZ426F(M), YZ426F/LC, YZ426F(M)/LC Service Manual OEM (P/N 5JG-28199-80)

• Covers 2000–2002 Yamaha YZ426F, YZ426FLC, and YZ426FM models, including market variants for the US, Europe, and Australia
• Official Yamaha publication P/N 5JG-28199-80, first edition September 1999
• Contains 100 pages of technical specifications, maintenance intervals, exploded diagrams, and wiring schematics
• Serves as the original OEM factory reference for the 5JG-series production run

Document Overview and Technical Highlights

The 2000–2002 Yamaha YZ426F manual provides complete technical coverage for the liquid-cooled 4-stroke DOHC engine and associated chassis components. Chapters break down inspection and adjustment routines for the carburetor, valve train, transmission, and suspension systems. Exploded-view diagrams clearly illustrate assembly orders, making it an essential reference for daily shop-floor tasks. Before performing any high-pressure engine or suspension work, technicians must review the specified safety tolerances detailed in these chapters to prevent equipment damage or personal injury.

Engine and Chassis Specifications

Engine oil capacity with filter replacement is firmly documented at 1.6 L. For routine top-end work, the standard intake valve clearance is listed at 0.15–0.20 mm within the maintenance tables. Electrical diagnostics cover the CDI magneto in detail, noting a source coil resistance ranging between 720–1080 ohms for source coil 1. You will also find final torque values for every major assembly, from engine mounting bolts to wheel axle securement points.