To adjust the idle on a 1984 Mercury Capri, first ensure the engine is at operating temperature. Locate the idle adjustment screw on the throttle body; this is typically a flathead screw. Turn the screw clockwise to increase the idle speed or counterclockwise to decrease it, aiming for the recommended RPM specified in the owner's manual. Finally, check the idle speed using a tachometer and make any necessary fine adjustments.
Right at the top of the engine you will find the carb immediatley to the right on the carb you will see a flat head screw this will adjust your idle , helps to have a second person on this.
You adjust idle with idle timing
To slow the cold start idle on your 1991 Mercury Capri, you can adjust the idle speed using the idle speed screw on the throttle body. Additionally, check the coolant temperature sensor and the idle air control (IAC) valve to ensure they are functioning properly, as they can affect the idle speed. If needed, you can also tweak the air-fuel mixture for optimal performance during cold starts. Always consult the vehicle's service manual for specific adjustments and procedures.
1978 80 Mercury Outboard IDLE ADJUSTMENT
The idle is not adjustible. You may need to clean the throttle plate to improve the idle.
its controlled by the computer. sometimes if you have a vacume leak or something eles is wrong they wont idel right. so you may want to check for a vacume leak somewere first
You can't - it's all controlled from the PCM.
Idle speed is set by the PCM and IS NOT ADJUSTABLE.
Idle speed is set by the PCM and is not adjustable. The screw you are fiddling with is just the stop screw to adjust the initial throttle plate position, it should not be used to attempt to adjust the idle.
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.
On the driver's side of the F 150 carb, there should be the linkage for the throttle. On the linkage there should be a set screw that you can turn to adjust the engine idle.
Adjust idle on Mitsubishi diamante