Final answer:
Indications of a leaking or open primer while the engine is running include fuel smell, poor engine performance, and visible fuel leak. It is important to shut off the engine immediately and address the issue to prevent further damage or potential fire hazards.
Step-by-step explanation:
When a leaking or open primer occurs while the engine is running, there are several indications to look for:
- Fuel smell: If there is a leaking or open primer, you may notice a strong smell of fuel.
- Poor engine performance: The engine may run rough, hesitate, or stall due to the fuel leak affecting the air-to-fuel ratio.
- Visible fuel leak: In some cases, you may see fuel dripping or spraying from the primer.
If you suspect a leaking or open primer while the engine is running, it is important to shut off the engine immediately and address the issue to prevent further damage or potential fire hazards.