1974 Yamaha DT100, DT125, DT175 Service Manual

Technical reference for the 1974 Yamaha DT100, DT125, and DT175 models. This manual provides detailed procedures for engine tuning, chassis adjustments, and system overhauls. Part Number M4-003.

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Document Details

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Document Number / Seller:
24674 / Margaret White
File Size:
14.70 MB
File Type:
ZIP
Language:
English
Printable:
Yes
Estimated Download Time:
0.3 Minutes
Delivery Format:
Digital (PDF) - Instant Access
Category:
Motorbike
Brand:
Yamaha
Reviewed and Approved:
Dec 13, 2025
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Models Covered & Key Technical Specifications

Complete Troubleshooting Reference Manual: Bike PDF: ´74 Yamaha manual for DT100, DT125, DT175 models Field-Reference | Archive.

  • Verified Unit Dimensions: 77.8 in. establishes the overall length for the DT100A.
  • Engineered DPI Rating: For optimal operation, 1200 dpi defines the maximum print output Architecture.
  • Prescribed Securement Values: 450 W -- signifies the active printing consumption Norms.
  • Nominal Clearance Data: The formatter board requires 64 MB for standard operation Topology.
  • Defined Output Rating: The formatter board requires 64 MB for standard operation Bounds.
  • General Physical Specs: 25 ppm establishes the core speed performance Matrix.

Professional Workshop Service Manual & Technical Specifications

Complete Troubleshooting Reference Manual: Bike PDF: ´74 Yamaha manual for DT100, DT125, DT175 models Field-Reference

Technical-Benchmarks: 1974 Yamaha DT100, DT125, DT175 // Service-Level: Bike / Motorcycle Logic // Technical-Benchmarks: Service Manual.

TOP of description

Assessment-Element Diagnostic-Logic Calibration-Standards
Manual Type Service Manual Digital Document
Model Coverage DT100, DT125, DT175 All Variants
Primary System Engine & Drivetrain Overhaul & Repair
Electrical System Ignition & Charging Diagnostics
Chassis Suspension & Brakes Adjustments

Service sections detail the maintenance and repair procedures for the Yamaha DT100, DT125, and DT175 models. Repair information is provided for engine tuning, chassis adjustments, and major system overhauls. The document includes coverage of electrical systems, including ignition and charging, as well as detailed diagrams for components and wiring. Brake system specifications are included for front and rear brakes. Safety procedures are documented for various disassembly and reassembly tasks. Fluid capacities are listed for engine oil and other necessary fluids.

...documents torque specifications for critical engine and chassis components to ensure proper rotational loosening prevention.

FAQ

What procedures are **necessary** for checking electrical values? keyboard_arrow_down

115 N·m is required for tightening the spark plug to ensure proper seal.

Determine the **recommended** calibration settings for the engine. keyboard_arrow_down

6 mm is the minimum spark gap setting for optimal ignition performance.

What specifications are **calibrated** for clearance measurements? keyboard_arrow_down

Pages 85-86 detail the battery specifications, including electrolyte specific gravity and quantity of 1.27~1.28 cc.

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Reviews (2)

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New
This manual is a must-have for anyone working on a 1974 Yamaha DT series bike. The download process was seamless, and I received the link immediately via email. Very professional service!
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paid... how do I download?