2003-2010 Yamaha TT-R125E TT-R125LWE Service Manual
Complete service and maintenance documentation for Yamaha TT-R125 dirt bike models. Covers engine, chassis, electrical systems with factory specifications and adjustment procedures. PN 5HP-28199-8A.
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Sample pages from the 2003-2010 Yamaha TT-R125E TT-R125LWE Service Manual manual
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Models Covered & Key Technical Specifications
Yamaha TT-R125E(R), TT-R125LWE(R) — 2003–2010 Technical Service Compendium | TT-R125 Series Unit.
- Designated Output Performance: 124 cm³ (7.57 cu.in) is rated at the engine displacement Architecture.
- Measured Linear Velocity: 54.0 × 54.0 mm (2.126 × 2.126 in) — establishes the bore and stroke dimensions Norms.
- Defined Gross Dimensions: 10.0:1 compression ratio supports the combustion chamber pressure Bounds.
- Key Rotational Force: Fuel tank capacity of 6.6 L (1.45 Imp gal, 1.74 US gal) provides the primary fuel reserve Topology.
- Primary Play Limits: Reserve fuel reaches 1.9 L (0.42 Imp gal, 0.5 US gal) for emergency operation Matrix.
- Baseline Burn-in Temperature: Engine oil capacity achieves 1.0 L (0.88 Imp qt, 1.06 US qt) for periodic service Standards.
Professional Workshop Service Manual & Technical Specifications
Professional undefined Service Manual: Yamaha TT-R125E(R), TT-R125LWE(R) Library-Master
Model-Designation: TT-R125E(R) (2010), TT-R125LWE(R) (2010) // Serial-Range: 5HP Series dirt bike configuration spanning mechanical and chassis systems // Design-Core: 124cc single-cylinder air-cooled 4-stroke engine with comprehensive maintenance reference across 585 pages.
| Documentation Category | Coverage Scope | Reference Status |
|---|---|---|
| Engine Systems | Carburetor, ignition (CDI), clutch, transmission, oil circulation | Complete specifications provided |
| Chassis & Suspension | Front telescopic fork, rear monoshock link-type suspension, steering | Detailed component procedures documented |
| Brake Systems | Drum brakes (TT-R125E), disc/drum configuration (TT-R125LWE), fluid specifications | Master cylinder and caliper data included |
Sequentially establishing the document framework, this comprehensive service manual addresses engine maintenance procedures, covers carburetor adjustment and fuel system configuration, and documents transmission inspection protocols alongside chassis suspension service intervals. The manual provides specifications for both drum and disc brake systems, includes wiring diagram schematics for electrical troubleshooting, and references valve clearance measurement procedures with torque documentation for the valve adjustment assembly.
OEM guidelines are included for regular maintenance intervals spanning initial break-in operations through extended service cycles. Transmission service information covers the constant-mesh five-speed gearbox with left-foot operation and includes shift mechanism adjustment details. Detailed system procedures are included for front fork oil circulation checks and rear shock absorber damping force regulation on the extended-wheelbase model. Torque specifications are documented for the cylinder head fasteners to ensure proper bolt clamping force.
The manual contains English, Italian, German, and French language sections across multiple chapters organized by system type. Each chapter includes exploded diagrams showing component relationships, parts numbering systems keyed to assembly sequence illustrations, and a structured table format distinguishing disassembly order from reassembly procedures. Electrical component data encompasses ignition system architecture, battery voltage specifications, fuse amperage ratings, and complete wiring harness routing guidance with connector location details for both model variants including the TT-R125LWE hydraulic brake circuit configuration.
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