All of the latest technical innovations ensure the TE 125 engine delivers unrivalled performance and best-in-class rideability. Fuelled by Throttle Body Injection (TBI), maximum torque and strong power throughout the rev-range ensures the TE 125 is easy to ride for both youngsters and hobby riders alike. The compact engine is designed to position all internal components to assist with centralising mass, which plays a vital role in the lightweight and agile handling of this exceptional machine.

The cylinder features a 54 mm bore and as the TE 125 is fuelled via Throttle Body Injection (TBI), the traditional powervalve is replaced with an innovative electronic exhaust control system. Using an actuator, the lateral exhaust port and main exhaust port open simultaneously for maximum power. Together with a machined finish on the upper contour of the exhaust port, engine performance is unrivalled.

The electronic fuel injection system on the TE 125 brings many benefits. The ECU constantly analyses the running condition of the engine and always guarantees the perfect air/fuel ratio through the state-of-the-art 39 mm Keihin throttle body. EFI also introduces two different engine maps, which can easily be selected via the handlebar-mounted switch for a personalised riding experience. Map 1 (white) is designed for technical terrain while Map 2 (green) is more aggressive and suited to sand and heavier track conditions. Additionally, the reed valve system is designed to reduce excess fuel build up, which prevents a rich running of the engine in extreme downhill sections.