Jet Mixture Control System

The jet mixture system supplies fuel to the engine through jet mixture passages and jet valves for ideal air/fuel mixtures. This system is calibrated by a jet mixture solenoid which is responding to an electrical impulse from the ECU. If the oxygen sensor detects a lean mixture condition, the ECU energizes the solenoid at an increasing duty cycle to enrich the mixture. If the oxygen sensor detects a rich mixture condition, the solenoid receives a signal from the ECU at a decreasing duty cycle, to lean the mixture.