SparkSwitch Pro RPM accessory and automatic choke control

  • Choke servo connected to the P3 port of the RPM device. After switching SparkSwitch Pro to on, the choke servo is closing the choke valve. When the RPM device reads more than 3 turns in short interval (0.3s) - the device will open the choke valve and next flipping the propeller will start the engine. If the engine is not running in the next 10 seconds, the procedure will be automatically repeated by the RPM device.

    Tested on OS Max gt60, DA110L, Valach engines with smooth starts without manual controlling of choke valve with rods or servo connected to a receiver and controlled by a special dedicated channel.


    New functionality requires updating of RPM device firmware!


    Have a fun :)

    Rudi