- Remove the carburetor and clamp it in a vice with the fuel mixture adjustment screw facing up.
- Drill a 2mm diameter hole (A) in the housing near the fuel mixture adjustment screw at an angle of 45° to the seal, then drill the hole to a diameter of 3mm.
- Insert the pin (D) into the hole and remove the seal (B) from the channel (C). Install the carburetor on the engine.
If the safety seal is missing, proceed as follows:
- Press the gas pedal once to reduce the high idle speed.
- Disconnect the ground wire from the battery and the vacuum hose from the second air valve by plugging its end (A).
- Start the engine and let it idle for at least 5 minutes. Set the idle speed.
- Connect the positive lead of the voltmeter to the negative lead of the electromagnetic feedback valve (see figure MCK06 009). Connect the negative lead of the voltmeter to ground. The electromagnetic feedback valve must be connected.
- Record the voltmeter reading at idle speed. Connect the oxygen sensor connector.
- Let the engine run for 10 seconds at 2000-3000 rpm.
Check the voltmeter reading: if the oscillation center of the needle corresponds to the previously recorded value (±0.5%), proceed to the next step. If the center of the needle's movement does not coincide with the previously recorded value, rotate the fuel mixture quality adjustment screw until the oscillation center of the needle coincides with the specified value at idle speed. After adjustment, repeat the previous two steps.
If necessary, adjust the idle speed with screw (A) (see figure МЦК06.006).
Information copied from the website (www.mitsubishiman.ru)
With the engine idling, open the throttle valve to increase the engine speed to 3000 rpm. Close the throttle valve. Make sure that the voltmeter needle moves away from its idle position as the engine speed increases and returns to its original position when the idle speed is restored.
After connecting the hose to the second air valve, install a new seal.