2000-2001 Yamaha WR400FM Owner's Service Manual

• Covers 2000–2001 Yamaha WR400F and WR400FM models, including global variants (USA, Europe, Canada, Australia, New Zealand, South Africa) and technical setups for the 399 cc DOHC 4-stroke engine
• Official Yamaha Owner's Service Manual detailing the WR Series units
• Contains 47 exploded-view diagrams, 14 wiring routing diagrams, 27 detailed lubrication schematics, and 5 exhaustive maintenance-torque specification tables
• Details primary technical benchmarks for the WR400F/M launch builds, featuring distinct tuning and maintenance specs for diverse international fuel and climate requirements

Manual Contents

This OEM manual lays out an extensive framework for machine maintenance and complete overhauls. It starts with general identification, VIN, and engine serial numbers. From there, it breaks down setup, break-in protocols, and regular inspection intervals. You get specialized adjustment procedures for engine oil, coolant, and chassis components like the swingarm and steering head.

The guide follows up with a complete technical breakdown of the engine, chassis, and electrical architecture. Electrical diagnostic chapters map out the ignition system, CDI unit, and throttle position sensor (TPS) wiring. A dedicated tuning section covers performance-oriented instructions for engine and chassis adjustments. Always verify these factory torque values and follow proper shop safety protocols before beginning any heavy engine work or suspension disassembly.

Specification Highlights

Engine maintenance data includes precise cam dimensions and valve clearances. Cold settings call for 0.15–0.20 mm on the intake and 0.25–0.30 mm for the exhaust. Torque values for primary engine fasteners are clearly listed to ensure accurate reassembly. For example, the oil gallery bolt requires 18 Nm, while the primary drive gear needs 75 Nm.

Coolant system capacity sits at 1.2 liters. Standard front fork oil levels range from 125 to 135 mm, depending on your regional market specifications. This provides all the necessary documentation for the 5GS series build without leaving out critical suspension or electrical parameters.