Which of the following could cause a motorcycle to overheat?

Low coolant levels can lead to overheating in a motorcycle because the coolant is essential for regulating the engine’s temperature. The primary function of the coolant is to absorb heat from the engine and dissipate it through the radiator. When the coolant level is low, there is insufficient fluid to circulate and effectively transfer heat away from the engine, causing the temperature to rise dangerously high.

In contrast, high oil levels could potentially lead to other engine issues, but they do not directly cause overheating. A strong battery charge is beneficial for engine performance and electrical systems but does not affect the cooling system’s operation. Proper air filter maintenance ensures that the engine receives adequate airflow for combustion but does not have a direct relationship with engine temperature control.