1982 Yamaha XS400 Motorcycle Service Manual

1982 Yamaha XS400 motorcycle documentation with in-depth coverage of engine, chassis, and electrical systems. Includes diagrams and troubleshooting. Part Number: 12E-28197-80

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Document Details

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Document Number / Seller:
26193 / Jessica Gonzalez
File Size:
78.76 MB
File Type:
PDF
Language:
English, French, German
Printable:
Yes
Category:
Motorcycle
Last updated / verified
Jun 17, 2025

Models Covered & Key Technical Specifications

Yamaha XS400 (1982) (12E-28197-80) - Universal Service & Repair Guide Field-Reference Documentation Compendium | Collection.

  • Documented Physical Specs: 12.5 mm establishes the standard deflection for the drive chain.
  • Calibrated Resolution Data: For optimal ignition timing, 10 degrees BTDC defines the base setting.
  • Authorized Tension Specs: The rear brake adjustment range is 20-30 mm, ensuring proper operation.
  • Maximum Holding Capacity: The primary drive gear nut requires 70 Nm for secure installation.
  • System Dimensional Limits: The cylinder head bolt torque is specified at 35 Nm for reliable assembly.
  • Principal Requirement: The fuel level setting is critical, with 3 +/- 1 mm below the carburetor mixing chamber body edge.

Professional Workshop Service Manual & Technical Specifications

Specialized Diagnostic Repair Manual: Motorcycle Yamaha XS400 Manual 1982 - Universal Service & Repair Guide Field-Reference

Technical-Scope: Engine, Chassis, Electrical Systems // Year-Coverage: 1982 / System: Motorcycle Logic // Technical-Details: Repair, Diagnostics, Maintenance.

Component Rating Calibration-Spec
Engine Overhaul High 50 Nm
Carburetion Medium 1.200 +/- 50 U/min
Chassis Medium 20 Nm
Electrical System High 12 Amps
Maintenance Intervals Standard Varies by item

Featuring a modular arrangement of sections dedicated to the comprehensive maintenance and repair of the 1982 Yamaha XS400 motorcycle. This manual provides clear guidance on all aspects of the vehicle's mechanical and electrical systems, ensuring your motorcycle remains in peak operating condition.

Drivetrain specifications are addressed in the detailed procedures for chain tension adjustment, ensuring optimal power transfer and reduced wear.

Reassembly procedures are specified for the engine, including critical torque values for components like the cylinder head and crankcase bolts, crucial for long-term reliability.

Service intervals are documented for all major components, including oil changes and filter replacements, helping you maintain the motorcycle's performance and longevity.

Component locations are identified for key parts within the electrical system, such as the battery and lighting units, simplifying diagnostics and repair.

Service procedures are documented for the carburetor system, including detailed steps for disassembly, cleaning, and adjustment to ensure optimal fuel-air mixture and performance.

This manual also documents torque specifications for critical engine components, such as the crankcase bolts and cylinder head bolts, to ensure proper service interval reliability and prevent premature wear.

FAQ

Check the **standard** drive chain slack. keyboard_arrow_down

10 mm to 20 mm is the specified slack for the drive chain, ensuring proper tension and reducing wear.

What does the **necessary** ignition timing adjustment entail? keyboard_arrow_down

10 degrees BTDC (Before Top Dead Center) is the standard ignition timing specification for optimal engine performance.

Reference the **recommended** fuel level specifications. keyboard_arrow_down

3 +/- 1 mm below the carburetor mixing chamber body edge is the recommended fuel level for correct operation.

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Reviews (4)

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The engine overhaul section alone is worth the price. Also, I received my download link almost instantly. Fantastic service!
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This manual has transformed my approach to motorcycle maintenance. The detailed instructions and charts are incredibly helpful!
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I love the clear guidance on tune-ups and adjustments. The download process was smooth, and the support team was super responsive!
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Rated 5 out of 5 stars