does the engine have a carburetor or is it fuel injected? A carbed engine has mixture screws along with a base idle screw, a fuel injected engine the idle is computer controlled.
by the set screw on throttle cable
At the base of the carburetor are 2 screws. One adjusts the idle speed and the other adjusts the idle mixture. Screw the idle mixture in until the engine starts missing then screw it out 1 turn. Then, adjust the idle speed screw to about 850 RPM.
You can adjust the idle.
Turn the Idle Adjusting screw.
turn the idle screw!
If your engine has a carburettor turn the idle adjust screw so the idle is at the proper speed. If your engine has fuel injection the ECM controls the idle.
The idle speed is computer controlled
You cant. The idle is controlled by the ecu.
To find the idle adjust on a caterpillar 3406 engine refer to the owners manual. If this doesn't help, contact the manufacturer.
You adjust the run and idle speed with the governor wire...loosen the nut and adjust it.
The engine idle is controlled by the ECU, and is not adjustable. If the engine is not idling properly, either too fast or too slow, take it to a shop and have them check the OBDII codes.
All Ford vehicles cannot adjust idle nor timing wich is pre-set at the factory and the computer sets the idle and timing, vehicles after 1990 no longer can be adjusted.