The S2 125 is a 125cc automatic scooter designed for practicality, fuel efficiency, and urban mobility. Introduced as part of its modern scooter lineup, it aimed to provide reliable performance and a competitive option within its segment, often compared to models from Yamaha, Honda, Kymco, and Suzuki. Its engineering emphasizes ease of use, featuring a four-stroke, single-cylinder, liquid-cooled engine with electronic fuel injection, paired with an automatic Continuously Variable Transmission (CVT). The scooter’s design typically includes a robust underbone frame, disc brakes for effective stopping power, and a comfortable riding posture suitable for daily commuting.

This comprehensive service repair manual provides detailed guidance for the maintenance, troubleshooting, and repair of the S2 125. It covers all mechanical and electrical systems, including in-depth procedures for the engine, fuel system, ignition, cooling, exhaust, transmission, chassis, braking, steering, and electrical components. The manual is structured to assist owners, independent repair shops, and dealerships in performing everything from routine preventive maintenance, such as oil changes and filter replacements, to complex engine and transmission overhauls. With clear instructions, diagnostic flowcharts, and component-level details, this manual serves as an essential resource for ensuring the longevity and optimal performance of your S2 125.

The S2 125 is a 125cc automatic scooter designed for practicality, fuel efficiency, and urban mobility. Introduced as part of its modern scooter lineup, it aimed to provide reliable performance and a competitive option within its segment, often compared to models from Yamaha, Honda, Kymco, and Suzuki. Its engineering emphasizes ease of use, featuring a four-stroke, single-cylinder, liquid-cooled engine with electronic fuel injection, paired with an automatic Continuously Variable Transmission (CVT). The scooter’s design typically includes a robust underbone frame, disc brakes for effective stopping power, and a comfortable riding posture suitable for daily commuting.

This comprehensive service repair manual provides detailed guidance for the maintenance, troubleshooting, and repair of the S2 125. It covers all mechanical and electrical systems, including in-depth procedures for the engine, fuel system, ignition, cooling, exhaust, transmission, chassis, braking, steering, and electrical components. The manual is structured to assist owners, independent repair shops, and dealerships in performing everything from routine preventive maintenance, such as oil changes and filter replacements, to complex engine and transmission overhauls. With clear instructions, diagnostic flowcharts, and component-level details, this manual serves as an essential resource for ensuring the longevity and optimal performance of your S2 125.