2000-2001 Yamaha WR400FM Owner's Service Manual

This comprehensive manual covers all aspects of your WR400FM, including detailed diagrams, troubleshooting, and maintenance schedules. Ref: 5GS5

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Technical Safety Notice
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This official OEM document is intended for professional technicians and skilled operators. Performing service on mechanical equipment involves inherent risks. By purchasing, you acknowledge that RepairLoader provides original manufacturer data for informational purposes. Always prioritize safety: use correct tools, wear protective gear, and consult a certified professional if you are uncertain of any procedure.

Yamaha Models Covered & Key Technical Specifications

Models: Yamaha WR400F, Yamaha WR400FM, Yamaha WR400F(M)
Sub-models / Variants: USA, Europe, CDN (Canada), AUS (Australia), NZ (New Zealand), ZA (South Africa)
Trade Names: WR Series
Build Years: 2000–2001
Serial Numbers: 5GS5 (USA), 5GS6 (EUROPE), 5GS8 (CDN, AUS, NZ, ZA)
Technical Data:

  • Engine displacement: 399 cm3
  • Engine type: Liquid cooled 4-stroke, DOHC, Single cylinder
  • Compression ratio: 12.5:1
  • Transmission: Constant mesh, 5-speed, wet multiple-disc clutch
  • Front wheel travel: 300 mm
  • Rear wheel travel: 315 mm
  • Fuel capacity: 12 liters (varies by region/reserve)
  • Spark plug: CR8E/NGK or U24ESR-N/DENSO
Technical Specifications
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Document Number / Seller:
31186 / Amanda Harris
File Size:
11.90 MB
File Type:
PDF
Language:
English
Pages:
292
Printable:
Yes
Category:
Bike
Last updated / verified
Apr 5, 2026

Yamaha Manual Features & Content Preview

Technical Scope for the 2000–2001 Yamaha WR400FM

  • 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 cm3 DOHC 4-stroke engine
  • Official Yamaha publication, Owner's Service Manual, covering the WR Series units
  • Contains 47 exploded-view diagrams, 14 wiring-related routing diagrams, 27 detailed lubrication diagrams, and 5 exhaustive maintenance-torque specification tables
  • 292-page PDF file
  • Delivered as a direct download the moment payment clears
  • Stored against your account so you can retrieve it after a hard-drive loss
  • OCR text layer lets you jump to a torque spec by keyword
  • Laid out for standard letter and A4 printing
  • This 2000–2001 edition provides the primary technical benchmarks for the WR400F/M launch builds, featuring distinct tuning and maintenance specs for diverse international fuel and climate requirements.

Contents Summary

The 2000–2001 Yamaha WR400FM owner's service manual provides an extensive framework for machine maintenance, starting with general identification, VIN, and engine serial numbers. The text details setup, break-in protocols, and regular inspection intervals—including specialized adjustments for engine oil, coolant, and chassis components like the swingarm and steering head—followed by an exhaustive technical breakdown of the engine, chassis, and electrical architecture.

Electrical diagnostic chapters map the ignition system, CDI unit, and throttle position sensor (TPS) wiring. Finally, the tuning section delivers performance-oriented instructions for engine and chassis modifications. This comprehensive guide serves as an official factory reference for Yamaha WR400FM owners to facilitate maintenance operations on their competition machine.

Specification Highlights

Engine maintenance specifications include cam dimensions and valve clearances with cold settings of 0.15–0.20 mm for intake and 0.25–0.30 mm for exhaust. Torque values for primary engine fasteners are listed, such as the 18 Nm specified for the oil gallery bolt and 75 Nm for the primary drive gear. Coolant system capacity is documented at 1.2 liters, and standard front fork oil levels range from 125 to 135 mm depending on regional market specifications. An official 292-page Yamaha OEM workshop manual covering the 2000–2001 WR400F/M series, documenting engine, chassis, electrical, and suspension specifications for the 5GS series build.

Manual FAQ, Purchase & Download Details

Are tightening specification tables, clearance references, and tolerance charts included within the manual sections? keyboard_arrow_down

Specification chapters and system-specific sections contain technical data including tightening specifications and maintenance limits. These tables provide reference values for various machine components to assist in reviewing system requirements.

Does the manual contain chapters covering the engine, clutch, transmission, and chassis components? keyboard_arrow_down

Document structure includes dedicated chapters for the engine, clutch, transmission, and chassis systems to provide comprehensive content coverage for these assemblies.

Can the manual be accessed as a digital document after purchase, and what does it include regarding electrical system references? keyboard_arrow_down

Product is provided as a PDF digital document that includes wiring diagrams, connector pinout references, and electrical system sections. These sections cover components like the ignition system, TPS, and lighting system to provide detailed technical content.

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