2006 Yamaha YZ125(W)/W1 Service Manual

Professional service manual for 2006 Yamaha YZ125 motocross bikes—detailed specifications covering 124cc liquid-cooled 2-stroke engine, transmission, suspension, braking systems, electrical components, and complete maintenance procedures for optimal racing performance.

5.0starstarstarstarstar(1)
visibility Preview Available
Yamaha 2006 Yamaha YZ125(W)/W1 Service Manual manual page preview - page 1 of 550

Sample pages from the 2006 Yamaha YZ125(W)/W1 Service Manual manual

Yamaha 2006 Yamaha YZ125(W)/W1 Service Manual manual preview page 1 - thumbnail
info_outline Click thumbnails to preview different pages

Purchase & Download

$17.86 (incl. VAT) Instant Download / No Shipping Fees
1 sold in the last 30 days
OR BUY NOW
verified_user
Lifetime Access
Re-download anytime
flash_on
Instant Download
Get it immediately
lock
Secure Payment
PayPal

Document Details

keyboard_arrow_down
Document Number / Seller:
24275 / Melissa Cooper
File Size:
15.02 MB
File Type:
PDF
Language:
English, German, France, Italian, multi-language
Pages:
550
Printable:
Yes
Category:
Motorcycle
Last updated / verified
Jan 16, 2026

Models Covered & Key Technical Specifications

Yamaha YZ125 2006

2006 Yamaha YZ125 Professional Service Manual - Technical Specifications

  • Engine displacement: 125 cubic centimeters (cc)
  • Maximum horsepower: 28 kW (approximately 37.5 hp) at 9,000 RPM
  • Transmission type: 5-speed manual with automatic clutch engagement
  • Fuel tank capacity: 7.7 liters (2.0 US gallons)
  • Cooling system: Liquid-cooled 4-stroke single-cylinder engine with radiator
  • Chassis: Steel tube frame with inverted front forks and monoshock rear suspension with 50mm travel

Professional Workshop Service Manual & Technical Specifications

Precision Technical Training Manual: Motorcycle 2006 Yamaha YZ125(W)/W1 Professional Service Manual

Labels: Model-Specs, Architecture-Focus, Product-Line

Component Rating Calibration-Spec
Engine Displacement 125cc Two-Stroke Cycle
Fuel System Carburetor Mikuni VM24SH
Ignition System CDI Electronic Timing
Cooling System Liquid Radiator Circuit

Table of Contents Summary

This 575-page professional service manual documents the complete technical architecture of the 2006 Yamaha YZ125(W)/W1 off-road motorcycle. Coverage includes engine rebuild procedures, transmission system documentation, fuel and ignition system specifications, cooling system topology, electrical system architecture, chassis and suspension framework, and brake system calibration. The manual provides systematic organization of component relationships, assembly sequencing documentation, and diagnostic reference material for technician training purposes.

Core Architecture

The manual presents the foundational design structure of the YZ125 platform, documenting how primary systems integrate within the motorcycle framework. Technical diagrams illustrate component placement, connection points, and spatial relationships. The documentation establishes the baseline understanding necessary for technicians to comprehend system interactions and component dependencies throughout the vehicle architecture.

Integrated Topology

System integration documentation describes how fuel delivery, ignition timing, cooling circulation, and electrical distribution operate as interdependent networks. The manual maps these connections through schematic representations and functional relationship charts, providing technicians with comprehensive views of how modifications to one system affect adjacent systems and overall engine performance characteristics.

Modular Methodology

The service procedures follow a systematic modular approach, organizing repair documentation by removable assemblies and functional units. This structure enables technicians to isolate specific components for service work while understanding their relationship to the larger system. Documentation includes step-by-step component removal sequences, inspection criteria, and reinstallation frameworks.

Engineered Architecture

Technical specifications throughout the manual reflect the engineering design parameters of the YZ125 platform. Material compositions, dimensional tolerances, and performance thresholds are documented to establish service standards. The manual serves as the definitive technical reference for understanding how the motorcycle's systems were engineered and how they function within designed operational parameters.

Professional service documentation for technician training and system reference.

FAQ

What are the **proper** clearance measurements for this motorcycle? keyboard_arrow_down

0.040–0.045 mm piston-to-cylinder gap ensures thermal stability and optimized combustion performance in the liquid-cooled 2-stroke engine configuration.

Specify the **standard** torque specifications for critical fasteners. keyboard_arrow_down

75 Nm boss securing nut torque (tightened using YM-91042 clutch holding tool) represents the primary drive system specification outlined in the maintenance data section (pages 467-550).

What is the **necessary** safety precaution for coolant system maintenance? keyboard_arrow_down

95–125 kPa radiator cap opening pressure must be verified before operation to prevent scalding injuries from pressurized coolant release during hot engine conditions.

Customer Reviews

Read what our customers say about this Yamaha Motorcycle manual and share your own experience.

Add a Review

* Required information
1000
Captcha Image

Reviews (1)

Avatar
New
This manual has been incredibly helpful for my maintenance needs. The step-by-step guides are clear and easy to follow. The download was smooth, and the email support was prompt and professional when I had questions. Highly recommend!