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Explains the use of the safety alert symbol and warning notations for potential hazards and injuries.
Defines 'Notice' for precautions and 'Tip' for helpful information to aid procedures.
Details how the manual is divided into chapters, sections, and sub-sections with diagrams and job instructions.
Explains symbols used in the manual for lubrication, special tools, torque, wear limits, and new parts.
Lists symbols for lubricants (gear oil, brake fluid) and technical data (torque, wear limit, engine speed).
Includes symbols for applying locking agent and replacing parts with new ones.
Details the location of the VIN, engine serial number, and model label for identification.
Describes key vehicle features, including the multi-function meter unit and its various displays.
Lists diagnostic tools, thickness gauges, tappet adjusting tools, and wrenches for maintenance.
Covers tools for forks, engine components, valve adjustments, and electrical testing.
Details tools for crankshaft installation, radiator testing, seal installation, and bearing drivers.
Covers general, engine, and chassis specifications, as well as tightening torques and cable routing.
Details the electrical specifications of the vehicle.
Explains the use of the safety alert symbol and warning notations for potential hazards and injuries.
Defines 'Notice' for precautions and 'Tip' for helpful information to aid procedures.
Details how the manual is divided into chapters, sections, and sub-sections with diagrams and job instructions.
Explains symbols used in the manual for lubrication, special tools, torque, wear limits, and new parts.
Lists symbols for lubricants (gear oil, brake fluid) and technical data (torque, wear limit, engine speed).
Includes symbols for applying locking agent and replacing parts with new ones.
Details the location of the VIN, engine serial number, and model label for identification.
Describes key vehicle features, including the multi-function meter unit and its various displays.
Lists diagnostic tools, thickness gauges, tappet adjusting tools, and wrenches for maintenance.
Covers tools for forks, engine components, valve adjustments, and electrical testing.
Details tools for crankshaft installation, radiator testing, seal installation, and bearing drivers.
Covers general, engine, and chassis specifications, as well as tightening torques and cable routing.
Details the electrical specifications of the vehicle.
This document is a service manual for the Yamaha XSR125 motorcycle, model year 2021, identified as MTM125. It is intended primarily for use by qualified mechanics at Yamaha dealerships to perform maintenance and repairs. The manual provides comprehensive explanations of installation, removal, disassembly, assembly, repair, and check procedures, laid out in sequential order.
The service manual serves as a detailed guide for all aspects of maintaining and repairing the Yamaha XSR125. It covers various systems of the motorcycle, including general information, specifications, periodic checks and adjustments, chassis, engine, cooling system, fuel system, and electrical system, as well as self-diagnostic procedures. The manual's primary function is to ensure that service personnel can accurately and safely perform all necessary tasks to keep the XSR125 in optimal operating condition. It includes information on identifying vehicle and engine serial numbers, understanding the multi-function meter unit, and using specialized tools.
The manual is structured for ease of use, with chapters divided into sections and sub-sections. Each removal and disassembly section begins with exploded diagrams to help identify parts and clarify procedure steps. These diagrams are accompanied by numbers indicating the order of jobs and symbols that denote parts to be lubricated or replaced. A job instruction chart provides the order of tasks, part names, and notes for each job. For installation and assembly, the procedures are typically the reverse of removal and disassembly. More detailed information, such as special tools and technical data, is described sequentially.
The multi-function meter unit, a key component for the rider, offers several displays:
The manual emphasizes the importance of using appropriate special tools for complete and accurate tune-up and assembly to prevent damage. A comprehensive list of special tools, including their part numbers, illustrations, and relevant pages in the manual, is provided. These tools are crucial for tasks such as:
The manual also includes important safety alerts, warnings, and notices. Warnings highlight hazardous situations that could result in death or serious injury, while notices indicate precautions to prevent damage to the vehicle or other property. Tips provide key information to make procedures easier or clearer. Periodic maintenance to the emission control system is specifically addressed, underscoring the manual's role in environmental compliance. The manual is designed to be updated with modifications and significant changes in specifications or procedures in future editions, ensuring that service personnel always have access to the most current information.
General| Engine Type | Liquid-cooled, 4-stroke, SOHC, 4-valves |
|---|---|
| Displacement | 124 cc |
| Bore x Stroke | 52.0 mm x 58.6 mm |
| Compression Ratio | 11.2:1 |
| Maximum Power | 11.0 kW (15.0 PS) @ 10, 000 rpm |
| Fuel System | Fuel Injection |
| Ignition System | TCI |
| Starter System | Electric |
| Transmission System | Constant Mesh, 6-speed |
| Final Transmission | Chain |
| Frame | Diamond |
| Rear Suspension | Swingarm |
| Front Brake | Hydraulic single disc, Ø 267 mm |
| Rear Brake | Hydraulic single disc, Ø 220 mm |
| Overall Width | 805 mm |
| Seat Height | 815 mm |
| Wheelbase | 1, 330 mm |
| Wet Weight | 140 kg |
| Fuel Consumption | 2.1 L/100 km |
| Lubrication System | Wet sump |
| Maximum Torque | 11.5 Nm (1.16 kg-m) @ 8, 000 rpm |
| Front Suspension | Telescopic fork |
| Front Tyre | 110/70-17 M/C 54H |
| Rear Tyre | 140/70-17M/C 66H (Tubeless) |
| Fuel Tank Capacity | 11 Liters |
| Clutch Type | Wet, Multiple Disc |
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