### Fuel Shut-Off System

This system is designed to reduce HC emissions and also to improve fuel economy during deceleration.

The fuel shut-off system is operated when the engine runs at higher than 2,200 rpm and the throttle valve is closed. These conditions are detected by the engine revolution switch and the throttle valve switch. As the engine speed goes down to the recovery zone which is lower than 1,600 rpm, the fuel shut-off system does not operate even if the throttle valve is kept closed.