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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Document Details

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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
Aug 13, 2025

Models Covered & Key Technical Specifications

Precision Quality Workshop Manual: Yamaha WR400FM Owner's Service Manual: Diagnostic & Service Procedure-Library

Product-Line: WR Series // Series-Validation: WR400FM Logic // Technical-Scope: Engine, Chassis, Electrical, Tuning.

Component Rating Architecture
Engine Type Liquid cooled 4-stroke, DOHC Single cylinder, forward inclined
Displacement 399 cm³ 14.1 Imp oz, 13.5 US oz
Basic Weight 122.0 kg 270 lb
Fuel Tank Capacity 12 L 2.64 Imp gal, 3.17 US gal
  • Measured Climate Parameters: Air temperature range from -20°C to 50°C defines the operational limit Framework.
  • Fundamental Processing Speed: Maximum speed is not explicitly stated but implied by operational capabilities Parameters.
  • Baseline Component Weight: Basic weight with oil and full fuel tank is 122.0 kg Benchmarks.
  • Integral Tension Specs: Chain slack specification is 40-50 mm Requirements.
  • Operational Specifications: Front wheel travel is 300 mm Threshold.
  • Published Technical Details: Rear wheel travel is 315 mm Specifications.

Professional Workshop Service Manual & Technical Specifications

Precision Quality Workshop Manual: Yamaha WR400FM Owner's Service Manual: Diagnostic & Service Procedure-Library

Product-Line: WR Series // Series-Validation: WR400FM Logic // Technical-Scope: Engine, Chassis, Electrical, Tuning.

Component Rating Architecture
Engine Type Liquid cooled 4-stroke, DOHC Single cylinder, forward inclined
Displacement 399 cm³ 14.1 Imp oz, 13.5 US oz
Basic Weight 122.0 kg 270 lb
Fuel Tank Capacity 12 L 2.64 Imp gal, 3.17 US gal

Cataloging major assemblies into specific sections, this manual provides comprehensive documentation.

Procedures are thoroughly documented, including detailed steps for disassembly and reassembly.

Specifications are clearly outlined, covering engine, chassis, electrical, and tuning aspects for your WR400FM.

Systems are explained with diagrams and component lists to aid in understanding the machine's layout.

Engine System Documentation

Tool requirements are listed for specialized tasks to ensure proper execution. Installation guidelines are provided for all major components, ensuring correct assembly. OEM guidelines are included for all maintenance procedures, maintaining factory standards.

Maintenance and Adjustment Procedures

Maintenance guidelines are included for regular upkeep and preventative care. Transmission service information covers all aspects of gearbox maintenance and adjustment.

This manual documents torque specifications for dynamic load distribution, ensuring optimal performance and safety.

FAQ

Assess the **critical** calibration settings. keyboard_arrow_down

175 mm is the standard value for installed pad number for Intake valve clearance, example reading of 0.27 mm requires replacement with 185 pad.

What components **required** clearance measurements? keyboard_arrow_down

0.010 ~ 0.037 mm is the standard intake valve stem-to-guide clearance, with a limit of 0.08 mm.

Confirm the **specified** torque specifications. keyboard_arrow_down

8 Nm is the torque specification for clutch spring bolts to ensure proper clutch assembly.

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Reviews (4)

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I love how well-organized this manual is! The step-by-step guides made repairs a breeze. Plus, the support team was very responsive when I had a question!
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This manual covers everything you need to know about maintaining my Yamaha WR. The download was smooth, and I received the link almost immediately after purchase! Highly recommended!
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Rated 4 out of 5 stars
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Rated 4 out of 5 stars