1. The fuel level of the fuel tank must not be lower than 65% of the total capacity. Below
this level, the engine will not be able to meet the continuous running time
requirements.
2. The fuel tank "fuel supply valve" must be locked in the "open" position. If the valve is
closed, the engine will failure to run.
3. The internal and external environment of the fuel tank vent pipe must be unobstructed.
If blocked, the normal use of the engine will be affected.
4. It is necessary to ensure that the fuel return pipeline is unblocked. If blocked, the
engine will not work properly.