Slow Fuel-Cut System
Connect voltmeter to terminal "F" (Light Green wire) of carburetor connector. See Fig 1 . Increase engine speed to 3000 RPM. Lift idle switch arm. See Figure . Voltmeter should indicate 12 volts at greater than 2500 RPM and less than 1.5 volts at less than 2500 RPM. Check slow fuel-cut solenoid and terminal 2D of ECU if system fails. See PIN VOLTAGE CHART S article.