Your lawnmower works in tough conditions. Whirling dust and grit can input the engine’s fuel system and clog its fuel injectors, leaving the mower sputtering or hard to begin. Fuel combined with ethanol may compound the problem because it corrodes metal parts and forms goo from the fuel line, and bits of corroded alloy and goo break away and wind up in the fuel injectors. Left untreated, the fuel injectors can get blocked. If your mower has dirty fuel injectors, then the issue can be corrected in just a few minutes. If a number of the fuel injectors are entirely obstructed, but then they likely need a deep cleaning with a certified mechanic.
Wait until your lawnmower’s gas tank is almost empty. Place 1 gallon of new gas in an empty gas container.
Add into the 1 gallon of fresh gas the amount of fuel-injector cleaner advocated on the cleaner’s label. Some brands involve mixing 1 ounce of fuel-injector cleaner with 1 gallon of petrol, but amounts vary among brands. Add just the amount of cleaner given on your own product’s label. The given amount should be used although many fuel-injector cleansers’ directions say that adding a lot of this cleaner will not damage an engine.
Put the cap onto the gas container that holds the 1 gallon of gas and the fuel-injector cleaner you inserted to it. Agitate the container lightly, thoroughly mixing the cleaner and gas.
Unscrew the cover of your lawnmower’s almost empty gas tank. Pour into the tank of this fuel-injector cleaner-gasoline mix to fill the tank. Secure the cap onto the mower’s tank. Place the cap back to the gas container, and place the container apart.
Initiate the lawnmower’s engine, and let it run about five minutes. This amount of time is required to allow the cleaner-gasoline mix to start unclogging the fuel injectors. Running the motor more removes more buildup from the fuel injectors, and therefore it would be a fantastic time to mow your lawn.