What causes a lawnmower engine to surge up and down?
A lawnmower that hunts and surges may be experiencing something as simple as an airflow issue. If the air that the engine requires to run is blocked, especially sporadically, it can cause the engine to slow down. When the blockage moves or clears, the engine may suddenly rev up in response.
Why does my lawn mower pulsate?
When a lawn mower surges, it sounds as if the engine reaches full speed, only to decelerate quickly. Typically, it doesn’t die, but the surging may repeat during the entire time the mower is in use. Like other small engines, mowers rely on a precise volume of gasoline and air for smooth operations.
Will ethanol hurt my lawn mower engine?
It is perfectly safe to used ethanol-blended fuel (E10) in your lawn mower and other equipment powered by a small engine. Contrary to what was said in the July 8 video, ethanol blends up to 10 percent (E10) are also safe to use in small engines.
Can you run a lawn mower on ethanol?
With the use of fuel stabilizers, you can still safely run power equipment using ethanol fuel. The stabilizer, specifically designed for use with ethanol fuel, prevents corrosion and removes water from the fuel. It will also clean the entire fuel system, including its most important parts: Carburetor.
Why is ethanol bad for lawn mowers?
E10 fuels are approved for usage in lawn mowers and outdoor power handhelds like gas chainsaws, trimmers, and leaf blowers. Gas with higher concentrations of ethanol is not. Ethanol will start to absorb water over time, leading to poor engine performance.
Where is the model number on a Murray push mower?
Find Your Murray Model Number. Model Numbers on Murray riding lawn mowers are found on the back of the mower or under the seat. Model numbers on Murray push mowers and walk behind mowers are normally on the center of the deck between the brackets that mount the lower handle.
What are the advantages of using ethanol in lawn mowers?
The stabilizer, specifically designed for use with ethanol fuel, prevents corrosion and removes water from the fuel. It will also clean the entire fuel system, including its most important parts: Ethanol fuel has its advantages, even though ethanol-rich gasoline can present some problems for mowers.
Can you use E15 gas in a lawn mower?
Not every engine is made to handle ethanol-rich fuel. E15 gas should be used only in flexible fuel vehicles (FFVs), which can burn either traditional gas or gasoline-ethanol blends, or in cars and trucks made in 2001 or later. For your mower, you should not use gasoline with an ethanol rating higher than E10.
What does it mean when your lawn mower engine is surging?
Lawn Mower Engine. Surging. Lawn mower engine surging is a right pain in the Jacksie, it’s an engine that runs erratically, revs up and down by itself uncontrollably. In some cases it may only happen under certain conditions, for example only after the mower gets hot, or only when the fuel level gets low.