Revving up and down is usually a symptom of a dirty air filter.
The governor spring adjustments
Governor hunting or surging is a problem that causes the engine to constantly speed up rapidly and then slow down rapidly.
According to " Outdoor Power Equipment By Jay Webster",Governor hunting or surging is a problem that causes the engine to constantly speed up rapidly and then slow down rapidly.
A riding mower may bog down when the blades are engaged due to several reasons, including a dull or damaged blade that creates excessive resistance, an overloaded engine from cutting thick grass or weeds, or issues with the mower's drive system. Additionally, low engine power or a clogged air filter can hinder performance. It's essential to ensure the blades are sharp and the mower is properly maintained to avoid bogging down. Regularly checking the mower's settings and engine health can also help prevent this issue.
If you mean the engine will rev up and down as it is running, it has been my experience that a dirty air filter is a cause of the fluctuation.
Hi, The float valve is leaking through. The fuel can leak in the intake and down into the crankcase, where it dilutes the engine oil.
When one of the lawn mower's wheels enters the grass it causes the lawn mower to slow down due to friction. If you keep pushing on the lawn mower, the wheel on the grass will act like a moving pivot, and the lawn mower will turn to a different angle.
when the engine weres down
The kill wire from the coil typically connects to the ignition switch or a safety mechanism that grounds the ignition system to shut down the engine. This connection enables you to stop the mower engine by turning off the switch or engaging the safety feature.
If you turn a push mower upside down, the oil and fuel can leak out, potentially causing damage to the engine and creating a fire hazard. Additionally, the blades may become exposed and could pose a safety risk. It's generally recommended to consult the owner's manual for proper maintenance procedures and to avoid turning the mower upside down unless specified. Always ensure the mower is off and cool before handling it.
Antifreeze absorbs and releases heat constantly. Over time, this causes the antifreeze to break down.
What causes a 1998 Pontiac transport to run hot and engine shuts off