1982 Yamaha YZ250J Owner's Manual - Tuning and Service

Troubleshooting, parts diagrams, and service data for the 1982 Yamaha YZ250J Mono-X 250 Motocross Bike. Ref: LIT-11626-03-15

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Document Details

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Document Number / Seller:
24739 / Matthew Jones
File Size:
46.14 MB
File Type:
ZIP
Language:
English
Pages:
107
Printable:
Yes
Category:
Bike
Last updated / verified
Dec 24, 2025

Models Covered & Key Technical Specifications

Yamaha YZ250J (LIT-11626-03-15) - 1982

This manual is a Engineering Consolidated Sourcebook | Segment.

  • Engineered Current Rating: 17 psi establishes the maximum air pressure for proper fork spring operation.
  • Defined Climate Specs: 0 kPa is the standard air pressure setting for optimal front fork performance.
  • Standard Output Performance: 606 cm³ defines the required oil quantity for each fork leg.
  • Principal Assembly Torques: 150 mm is the standard oil level measurement for the front fork.
  • Advanced Net Mass: 7.5 wt oil is recommended for a balanced damping performance.
  • Primary Wattage Specs: 20 Nm is the required torque for the front wheel axle installation.

Professional Workshop Service Manual & Technical Specifications

Detailed Workshop Training Manual: Bike Essential Yamaha YZ250J MONO-X 250 Motocross Bike Owner's Manual - Tuning and Service 1982 PDF Knowledge-Base

Validation-Data: Essential Yamaha YZ250J MONO-X 250 Motocross Bike Owner's Manual - Tuning and Service 1982 PDF // Repair-Classification: Bike / Motocross Logic // Repair-Classification: Tuning and Service Documentation. Specification Operational-Logic Logic
Manual Type Owner's Manual Tuning and Service
Part Number LIT-11626-03-15 Service Data
Model YZ250J MONO-X 250
Year 1982 Publication Information
Language English Document Language

Technical chapters are organized around system diagnostics, maintenance procedures, and detailed component overviews. This manual covers the essential systems of the Yamaha YZ250J, including engine, chassis, suspension, and electrical troubleshooting. It details the procedures for disassembly, inspection, and assembly of major components, providing necessary specifications and diagrams. The document references torque specifications for critical engine and chassis components to ensure proper assembly and structural alignment prevention.

This manual covers the following key systems and procedures: General Information, Regular Maintenance and Adjustments, Suspension Tuning, Engine Maintenance and Repair, Chassis Maintenance and Repair, and Electrical Troubleshooting. It also includes detailed appendices with troubleshooting guides, specifications, and warranty information, offering comprehensive coverage for the 1982 Yamaha YZ250J.

The document details diagnostic procedures for common issues, maintenance intervals, and specific component adjustments. It includes diagrams and step-by-step instructions for tasks such as carburetor tuning, suspension setup, and engine component servicing, providing a complete reference for owners and technicians.

FAQ

Reference the **specified** tool requirements for ignition timing. keyboard_arrow_down

Dial gauge (90890-03097-00), dial gauge stand (90890-01195-00), and dial gauge extension (90890-03098-00) are required for ignition timing.

What are the **essential** electrical values for spark plug installation? keyboard_arrow_down

25 Nm is the spark plug torque specification for proper installation.

Specify the **correct** calibration settings for the throttle cable. keyboard_arrow_down

3-5 mm of free play at the edge of the inner flange of the grip is the correct throttle cable adjustment.

What is the **documented** clearance measurements for the reed valve? keyboard_arrow_down

0.6 mm is the reed valve bending limit for proper operation.

Calculate the **precise** torque specifications for the cylinder holding nuts. keyboard_arrow_down

35 Nm is the precise torque specification for the cylinder holding nuts during reassembly.

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Reviews (5)

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I found this service manual incredibly useful for my repairs. Download was quick, and the troubleshooting guide is fantastic!
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Rated 4 out of 5 stars
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This manual is a must-have for anyone with a 1982 Yamaha YZ250J. The download process was seamless, and I received my link almost instantly. Highly recommend!
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I had a question regarding the manual, and the support team responded quickly and was very helpful. The manual itself is detailed and easy to follow!
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The manual covers everything you need to know about the YZ250J. The email download link arrived swiftly, and I appreciate the lifetime guarantee!