2004 Yamaha TT-R125 / TT-R125E / TT-R125LW / TT-R125LWE Owner's Service Manual

This 2004 Yamaha TT-R125 owner's service manual covers various models, including procedures for general information, specifications, regular inspection and adjustments, engine, chassis, and electrical systems. Ref: 5HP-28199-85.

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Document Details

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Document Number / Seller:
26785 / Deborah Garcia
File Size:
20.50 MB
File Type:
ZIP
Language:
English, French, German
Printable:
Yes
Category:
Bike
Last updated / verified
Oct 12, 2025

Models Covered & Key Technical Specifications

Verified Specification Owner's Manual: Yamaha TT-R125(S), TT-R125E(S), TT-R125LW(S), TT-R125LWE(S) (2004) Reference-Archive Covers TT-R125/TT-R125E/TT-R125LW/TT-R125LWE with procedures for general information, specifications, regular inspection and adjustments, engine, chassis, and electrical systems. Ref: 5HP-28199-85.

  • Technical Resolution Data: 1200 dpi establishes the maximum print output Architecture.
  • Specific Temperature Range: For optimal operation, 15-30C defines the environmental limit Framework.
  • Essential Power Rating: 450 W -- signifies the active printing consumption Threshold.
  • Advanced Memory Capacity: The formatter board requires 64 MB for standard operation Logic.
  • Core Speed Performance: Maximum throughput reaches 25 ppm Parameters.
  • Baseline Data Transfer: 10 Mbps ensures efficient data communication Configuration.

Professional Workshop Service Manual & Technical Specifications

Verified Specification Owner's Manual: Yamaha TT-R125(S), TT-R125E(S), TT-R125LW(S), TT-R125LWE(S) Reference-Archive

Component-Focus: TT-R125/TT-R125E/TT-R125LW/TT-R125LWE (2004) | Product-Line: Bike | Component-Focus: Service Manual

Performance-Element Diagnostic-Logic Framework
Engine Oil Capacity 1.0 L 0.88 Imp qt
Fuel Tank Capacity 6.6 L 1.74 US gal
Ground Clearance 265 mm 10.4 in
Bore x Stroke 54.0 x 54.0 mm 2.126 x 2.126 in
Compression Ratio 10.0:1 ---
Wheel Travel (Front) 180 mm 7.09 in

Technical units are distributed across six chapters: General Information, Specifications, Regular Inspection and Adjustments, Engine, Chassis, and Electrical.

General Information

The "General Information" section documents the machine's description, identification, important information, special tools, and control functions, providing a foundational understanding for operation.

Specifications

This chapter addresses the technical specifications of the TT-R125 models, covering engine, chassis, and electrical systems to ensure proper performance parameters.

Regular Inspection and Adjustments

This manual details regular maintenance intervals and procedures, including checks for fuel lines, spark plugs, valves, air filters, carburetors, exhaust systems, engine oil, and brakes.

Engine

The "Engine" section provides comprehensive guidance on engine components, including cylinder head, camshaft, valves, pistons, clutch, oil pump, and transmission systems for optimal maintenance.

Chassis

This chapter covers the chassis components, such as the frame, steering system, suspension, wheels, and brakes, ensuring structural integrity and proper handling.

Electrical

The "Electrical" section outlines the ignition system, generator, battery, starter motor, and wiring diagrams, vital for the bike's electrical functionality. Precisely requiring maintenance for optimal performance and longevity, this manual ensures your Yamaha TT-R125 series operates at peak condition.

FAQ

What are the **essential** electrical values for the TT-R125? keyboard_arrow_down

CDI magneto systems are specified for the TT-R125 and TT-R125E, with a 12V/3.2 AH battery. Specific gravity is 1.320.

Specify the **correct** calibration settings for the pilot air screw. keyboard_arrow_down

The pilot air screw should be turned in until lightly seated, then backed out 2-1/2 to 3-1/2 turns for the factory setting.

Reference the **specified** tool requirements for engine removal. keyboard_arrow_down

Special tools like the crankcase separating tool (YU-1135-A) and piston pin puller set (YU-1304) are referenced for engine removal and related tasks.

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Reviews (5)

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I had a smooth download process and received my manual instantly. The support team was also very responsive to my questions!
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The pricing is reasonable considering the depth of information provided. Downloading was a breeze!
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Whether you're new to mechanics or an experienced tech, this manual has something for everyone. Fast email support too!
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The manual covers everything from regular inspections to engine overhauls. Highly recommend for DIYers!
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This service manual is a must-have for any TTR125 owner. The detailed sections made my repairs a breeze!