How to adjust the idle speed of Kubota 163 excavator?

The method is as follows: 1. When the idle speed of the engine is unstable, it should be adjusted when the engine temperature is normal and the oil circuit is trouble-free.

2. Slowly loosen the throttle opening adjusting screw with a screwdriver (commonly known as screwdriver, screwdriver). When the engine is about to turn off, screw it in a little bit to keep the engine running. Adjust the idle mixture adjusting screw. Let the engine run faster. 3. Turn out the valve opening adjustment again to achieve stable idle work, which not only accelerates but also does not stall.