Honda GX240RT2 Service And Repair Manual page 252

gx240ut2_gx270ut2_gx340ut2_gx390ut2
FUEL SYSTEM
Engine warming up – Normal running:
The ECM applies current to the Positive Temperature Coefficient Heater in the heater Assy. (1) to warm up the thermally-linked
wax, by calculating the data from temperature sensor in the ECM, finally open the choke valve (2). The ECM shifts to normal
running mode after detecting that warm-up is complete by receiving the temperature data from the sensor, and stops the current to
the heater.
(1)
(2)
When stopping:
To stop the engine, turn the engine stop switch off to open the throttle valve (1) beyond the fully open position.
(1)