Husqvarna TE 2024 - Throttle Body Injection (TBI)

The new 39 mm Keihin throttle body features dual injectors positioned for optimal flow and more immediate throttle response thanks to direct cable mounting. Idle is controlled over the throttle valve (not over a bypass system as on Transfer Port Injection) with a new dual injector setup – one low load injector (positioned as on 4-stroke models) and one “top-feed” oriented injector for maximum performance before the throttle valve.

A new, and more robust TPS-Sensor provides the same cold start mechanism as on the 4-stroke models. The throttle valve pivots on ball bearings instead of plain bearings – this provides less than half the friction torque compared to the former throttle body and allows a much easier throttle operation.

All in all, this provides much better idle control, more stable idle behaviour, and much better fuel-air mixture preparation. The results are more power, more response, and a larger possible fuel air mixture operation window in comparison to TPI. Therefore, it is less prone to engine cut-outs or hesitations and less sensitive to different ambient conditions (e.g. temperature, altitude, humidity).

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Credits:
KISKA GmbH
Rudi Schedl
Luca Piffaretti
Husqvarna Motorcycles