1997 Yamaha YZ125J1 Competition Motocross Owner's Service Manual

Wiring diagrams, specifications, and repair sequences for the YZ125J1: engine, chassis, electrical systems, and more. LIT-11626-10-52

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Document Details

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Document Number / Seller:
26556 / Sandra Stewart
File Size:
23.66 MB
File Type:
ZIP
Language:
English
Pages:
252
Printable:
Yes
Category:
Bike
Last updated / verified
Dec 30, 2025

Models Covered & Key Technical Specifications

OEM-Grade Calibration Manual: Yamaha YZ125J1 Competition Motocross Owner's Service Manual (LIT-11626-10-52) - 1997 Procedure-Library

A Precision Sourcebook | Series Yamaha Container.

  • Factory Production Rate: 252 pages establishes the overall document size.
  • Essential Physical Specs: For maintenance, 107 mm defines the trail measurement.
  • Key Output Quality: 23.662 MB -- signifies the archive's file size.
  • Verified Fill Levels: The engine requires Liquid cooled 2-stroke, gasoline for optimal operation.
  • Designated Assembly Gap: Intake manifold measures 25.6 degrees for correct alignment.
  • Approved Print Rate: 88 kg (194 lb) is the minimum weight without fuel.

Professional Workshop Service Manual & Technical Specifications

OEM-Grade Calibration Manual: Yamaha YZ125J1 Competition Motocross Owner's Service Manual (LIT-11626-10-52) - 1997 Procedure-Library

Coverage-Scope: 1997 Yamaha YZ125J1 Competition Motocross Owner's Service Manual // Technical-Benchmarks: Bike / Motorcycle Logic // Unit-Designations: LIT-11626-10-52.

Assessment-Element Operational-Logic Calibration-Data
Model YZ125J1 1997
Manual Type Owner's Service Manual
Engine Type Liquid cooled 2-stroke
Transmission Constant mesh 6-speed
Front Brake Single disc Operation
Rear Brake Single disc Operation

Major sections focus on:

  • General Information covering machine identification and important data.
  • Detailed Specifications including engine, chassis, and electrical parameters.
  • Regular Inspection and Adjustments for systematic maintenance.
  • Engine service procedures and component overviews.
  • Chassis system maintenance, including brakes and suspension.

This manual documents torque specifications for components to ensure proper bolt stretch prevention.

FAQ

Check the **standard** component identification keyboard_arrow_down

107 mm is the standard trail measurement for this model.

What does the **necessary** adjustment procedures keyboard_arrow_down

88 kg (194 lb) is the minimum weight without fuel for the class 125 cc motocross machines.

Reference the **recommended** pressure specifications keyboard_arrow_down

100 kPa (1.0 kg/cm², 15 psi) is the standard tire pressure for the front and rear wheels.

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Reviews (2)

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New
This service manual is a must-have for anyone maintaining a 1997 Yamaha YZ125. The download process was seamless and I received the link in my email almost instantly. Highly recommend!
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New
The manual is detailed and covers everything from the engine to the electrical system. Customer support was excellent; they responded quickly to my queries. A solid purchase!