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General| Displacement | 124 cc |
|---|---|
| Bore x Stroke | 54.0 mm x 54.0 mm |
| Compression Ratio | 10.0:1 |
| Ignition System | CDI |
| Final Drive | Chain |
| Front Tire | 70/100-19 |
| Rear Tire | 90/100-16 |
| Engine Type | 4-stroke, SOHC |
| Fuel System | Mikuni VM20 |
| Transmission | 5-speed |
| Front Suspension | Telescopic fork |
| Rear Suspension | Swingarm |
| Rear Brake | Drum |
| Fuel Capacity | 1.6 gallons |
Overview of the Yamaha TT-R125(P)/TT-R125LW(P) model, its features, operation, and maintenance.
Crucial safety guidelines for operating the TT-R125(P)/TT-R125LW(P) motorcycle, including warnings and precautions.
Guidance on understanding manual structure, symbols, and finding information for effective use.
Explanation of graphical symbols used throughout the manual for chapters, specifications, and maintenance points.
Identification of key parts and controls of the motorcycle, including levers, grips, pedals, and switches.
Details on locating and understanding vehicle identification numbers and model labels for parts ordering.
Essential preparation steps before disassembling the machine, including cleaning and tool usage.
Procedure for checking and cleaning electrical connectors to ensure proper function and continuity.
List of required special tools with part numbers and illustrations for tune-up and assembly.
Information on recommended fuel types, tank capacity, and fuel level checks.
Procedures for starting the engine (cold and warm) and guidelines for the initial break-in period.
List of critical torque specifications for various fasteners on the TT-R125 and TT-R125LW models.
Instructions for cleaning the motorcycle to maintain appearance and performance, and steps for proper storage.
Detailed specifications for the TT-R125 model, including dimensions, engine, chassis, and electrical components.
Detailed specifications for the TT-R125LW model, including dimensions, engine, chassis, and electrical components.
Technical data and limits for engine components like cylinder head, cylinder, camshaft, and valve dimensions.
Technical data and limits for chassis components including steering, suspension, wheels, and drive chain.
Specifications for electrical components such as CDI, ignition coil, and pickup coil resistance.
Chart specifying torque values for standard fasteners and definitions of units used in the manual.
Schedule outlining recommended maintenance and lubrication intervals based on operating hours or time.
General maintenance schedule for various components, including checks and intervals for optimal vehicle condition.
Pre-ride checks for fuel, oil, brakes, tires, and electrical connections to ensure safe operation.
Procedures for lubricating throttle cables and cleaning the air filter element for optimal performance.
Steps for checking and maintaining the correct engine oil level, including recommended oil types.
Procedure for measuring and adjusting valve clearance for proper engine operation and performance.
Steps for inspecting the spark plug, including gap testing and checking for proper ignition system function.
Procedure for inspecting primary and secondary coil resistance to diagnose ignition system issues.
Steps for inspecting the CDI magneto components, including pickup coil and charging coil resistance.
Procedures for removing, inspecting, and installing the cylinder head, including torque specifications.
Steps for removing, inspecting, and installing the camshaft and rocker arms for proper valve timing.
Procedures for removing, inspecting, and installing valves, valve springs, and related components.
Procedures for removing, inspecting, and installing the cylinder, piston, and piston rings.
Procedures for removing, inspecting, and installing clutch plates, friction plates, and primary gears.
Procedures for removing, inspecting, and installing the oil pump and its components.
Procedures for removing, inspecting, and installing the kick axle, shift shaft, and related parts.
Procedures for removing, inspecting, and installing the CDI magneto and its components.
Step-by-step instructions for removing the engine from the motorcycle frame.
Procedures for separating the crankcase, removing the crankshaft, and inspecting the balancer.
Procedures for removing, inspecting, and installing the front wheel and front drum brake system.
Procedures for removing, inspecting, and installing the front wheel and wheel bearings for the TT-R125LW.
Procedures for removing, inspecting, and installing the front brake system components.
Detailed steps for disassembling the front brake caliper and master cylinder for inspection or replacement.
Procedures for removing, inspecting, and installing the rear wheel, brake, and related components.
Procedures for removing, inspecting, and assembling the front fork components.
Procedures for removing, inspecting, and installing the handlebar, grips, and controls.
Procedures for inspecting and adjusting the steering system, including bearings and head nut.
Procedures for removing, inspecting, and installing the swingarm, pivot shaft, and related components.
Overview of electrical components and the complete wiring diagram for the motorcycle.
Troubleshooting steps for the ignition system, including spark plug and coil checks.
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