How tight is the throttle screw?

See how tight it can be, regardless of how tight it should be.

Here, the throttle opening screw can be adjusted according to the following methods: 1, and the adjusting screw * * * has two positions, one is the idling adjusting screw to adjust the throttle opening; You will see that this screw is facing the accelerator. As soon as the throttle is turned on, the idle speed will of course increase; 3. The second one is another one called CO adjusting screw. The screw is located in the idle oil passage. The mixture concentration can be adjusted, which will affect the stability of the engine when the car is idling, and can be adjusted according to your own needs. Common screw specifications are 4 mm, 5 mm, 6 mm, 8 mm, 10 mm, 12 mm, 14 mm, 16 mm and 18 mm respectively. The outside diameter of metric thread is in millimeters, such as 6, 8, 10, 12, 18, 20mm, etc. Pitch is also in millimeters, such as 0.5, 0.75, 1. 1.5, 2, 3, etc.