Yamaha YFA1 Breeze 125 Service Manual 1989-2004

For Yamaha YFA1 Breeze 125 models: diagnostics, service, and parts information. Includes detailed schematics and component data. Ref: 3FA-28197-10

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Document Details

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Document Number / Seller:
27272 / Nancy King
File Size:
18.12 MB
File Type:
PDF
Language:
English
Pages:
286
Printable:
Yes
Category:
Motorbike
Last updated / verified
Dec 5, 2025

Models Covered & Key Technical Specifications

Certified Instructional Shop Manual: Motorcycle Yamaha YFA1, Breeze 125 Service Manual - Comprehensive Guide for Mechanics and Enthusiasts Troubleshooting-Index

Yamaha YFA1 (3FA-28197-10) -- 1989-2004 Precision Briefing | Collection.

  • Designated Clearance Data: 0.03 mm establishes the maximum engine warp limit Benchmarks.
  • Primary End Play: For component accuracy, 0.5 mm governs the piston off-set Range.
  • Advanced Power Draw: The electrical system supports 12A baseline charging current Requirements.
  • Defined Print Rate: The formatter board requires 8.5 kg/cm² for maximum compression pressure Baseline.
  • Key Precision Specs: 49.9 mm -- signifies the engine bore size Requirements.
  • Essential Holding Capacity: For optimal operation, 20 N-m defines the minimum spark plug tightening Threshold.

Professional Workshop Service Manual & Technical Specifications

Certified Instructional Shop Manual: Motorcycle Yamaha YFA1, Breeze 125 Service Manual - Comprehensive Guide for Mechanics and Enthusiasts Troubleshooting-Index

Conceptual-Layout: YFA1 (3FA-28197-10) / All Models Logic // Model-Designation: Yamaha Breeze 125 / ATV Logic // Year-Coverage: 1989-2004 Technical-Details.

Integrated-Framework Technical-Path Calibration-Standards
General Information Specifications Periodic Inspection and Adjustment
Engine Overhaul Carburetion Chassis
Electrical Troubleshooting Wiring Diagrams

Coverage is segmented into the following major sections: General Information, Specifications, Periodic Inspection and Adjustment, Engine Overhaul, Carburetion, Chassis, Electrical, and Troubleshooting. Appropriately mandating these procedures ensures peak performance.

Reassembly procedures are specified for the engine, carburetor, and chassis components.

Service intervals are documented for all major maintenance points, including fluid changes and component checks.

Component locations are identified for critical parts and systems.

This manual also includes a detailed electrical system diagnosis section and comprehensive troubleshooting guides to assist with common issues. It documents torque specifications for critical engine and chassis components to ensure proper dynamic load distribution.

Service procedures are documented for engine disassembly and reassembly, including valve adjustments and timing chain replacement.

FAQ

Check the **standard** tire pressure. keyboard_arrow_down

20 kPa (0.20 kg/cm², 2.8 psi) is the standard front tire pressure for the Yamaha YFA1.

What does the **necessary** torque value mean? keyboard_arrow_down

115 N·m (4.407 ~ 4.411 in) is the minimum crankshaft connecting rod length specification.

Reference the **recommended** oil type. keyboard_arrow_down

Yamalube 4 (10W30) or SAE 10W30 Type SE is recommended for the engine oil.

What are the **calibrated** assembly sequences? keyboard_arrow_down

Refer to Chapter 4, page 243, for detailed assembly sequences of the cylinder head components.

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Reviews (5)

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The download process was smooth, and I received the link almost instantly. Great support team!
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This manual is incredibly detailed and has helped me immensely with repairs. The diagrams are clear and easy to follow!
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Rated 5 out of 5 stars
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Had a question about the manual, and the support team responded quickly. Their help was very professional and informative.
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A must-have for anyone working on the Yamaha YFA1. The layout makes it simple to find the information you need. Highly recommend!