If it's an EFI engine you do not adjust the mixture screw. The mixture is computer controlled.
A Throttle is the fuel control that controls the mixture of fuel and air and the rate of flow into the engine.
one carburetter they usually have two adjusting screws one for throttle the other would be setting the right fuel mixture
With an open throttle the engine can get more of the fuel-air mixture into it. With more fuel to burn it will run faster.
A throttle is the controls and mechanism that controls the flow of fuel and the fuel/air mixture into the engine. The throttle would be a part of the fuel controls on top of the engine of most cars.
Typically a device that controls the flow of air/fuel mixture to the intake of an engine.
The throttle position sensor is an input to an engine control computer that sets the amount of mixture provided to the engine, in conjunction with the amount of air flowing into the engine - by setting the ifuel njection solenoid pulse length.
A throttle body is were the throttle plate is witch allows air into the engine. so you get the air fuel mixture the engine needs to run. The futher the plate opens the faster the engine runs. you can find this were the air intake hose comes from the air filter box then connects to the engine. That will be the throttle body
50:1
setting of tapets, water cooler, big ends
The governor spring adjustments
Try having the throttle body cleaned.
An engine will stall when you give it gas if it does not have the correct mixture of fuel and air. This is controlled by the carburetor or throttle body and may need adjustment.