1. Warm up the engine to normal operating temperature and stop it.
2. Attach a tachometer.
3. Start the engine again.
4. Adjust the rotational speed corresponding to the inclusion of the manipulator (positioner) throttle valve (TR), observing the following sequence:
A) Disconnect the vacuum hoses from the filter and diaphragm TP.
b) Using another hose, connect the filter and TP diaphragm.
V) Increase the engine speed to 2500 rpm for a few seconds, release the throttle and check the speed value corresponding to the moment the manipulator is turned on (positioner) (1400 rpm).
G) If necessary, adjust the speed with the adjusting screw and repeat the test.
d) Attach the vacuum hoses to the filter and to the TP diaphragm.