The priming of a fuel-injected horizontally opposed engine is accomplished by placing the fuel control lever in which position?

• A. Idle cutoff
• B. Auto rich
• C. Full rich
• D. Off

Answer: (C)

Priming a fuel-injected engine relies on delivering extra fuel to the cylinders so starting is easier. The fuel control lever sets how much fuel can reach the injectors, and for a prime you want the most fuel available. Placing the lever in full rich opens the fuel flow to its maximum, allowing the primer to flood the intake with fuel. This rich mixture helps ignition when you crank the engine, especially in cold conditions. Other positions either cut fuel off or supply less fuel, so they wouldn’t provide the necessary starting boost. After starting, you adjust to the appropriate mixture for normal running.