Why should the pilot turn the twist grip to OFF during a start abort?

• A. To extinguish warning lights
• B. To prevent fuel from entering the engine
• C. To stop engine revolutions
• D. To disengage the electrical system

Answer: (B)

Turning the twist grip to OFF during a start abort is crucial primarily to prevent fuel from entering the engine. This action effectively cuts off fuel flow, which helps mitigate the risk of a fire or other hazards that could arise from a situation where the engine has not started properly. By stopping the fuel supply, the pilot ensures that any potential ignition source does not have fuel available to sustain combustion, making it an important safety procedure during this critical phase of flight operations.

While extinguishing warning lights, stopping engine revolutions, and disengaging the electrical system are also actions that may be necessary under specific circumstances, the immediate concern during a start abort is to ensure that fuel does not enter the engine, thereby prioritizing safety and preventing further complications.