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How to Fix a Push Lawn Mower
How to Fix a Push Lawn Mower. A common push lawn mower is the rotary mower. Push lawn mowers can be powered by either a battery, electricity or gasoline. These mowers generally are low maintenance, but still occasionally need repairs. Most gas-powered push mowers use a manual pull starter and a spinning blade that whirls around at a set height,...
A common push lawn mower is the rotary mower. Push lawn mowers can be powered by either a battery, electricity or gasoline. These mowers generally are low maintenance, but still occasionally need repairs. Most gas-powered push mowers use a manual pull starter and a spinning blade that whirls around at a set height, uniformly cutting the grass.
Things You'll Need
Spark plug wrench
Wire brush
Spark plug gap gauge
Replacement spark plug
Block of wood
Wrench
File
Pencil or screwdriver
Start Problems
Remove the fuel cap and make certain that the fuel level is sufficient. Repeatedly pull on the starter cord to remove water from the gas. If you know the gas is old and suspect that it has become stale. discard it from the tank. Fill the tank with fresh gasoline.
Remove the rubber casing that covers the spark plug. Unscrew and remove the spark plug using a spark plug wrench. Carefully clean the spark plug threads with a wire brush. Re-gap the spark plug using a gap gauge and adhering to the proper gap as stated in the mower's owner's manual.
Reattach the rubber casing to the spark plug and place the spark plug's end on the body of the lawn mower, making certain that the spark plug is away from the gas tank. Start the mower and check to see if a blue spark shoots out, indicating the spark plug is good.
Examine whether the spark plug is excessively grimy or sooty with oil. If the spark plug is in this condition, install a replacement spark plug. Adjust the spark plug gap as necessary with a gap gauge.
Blade Not Cutting
Disconnect the mower's spark plug wire. Wedge a block of wood against the blade to hold the blade in an immobile position. Inspect the blade for any possible bends and severe damage, in which case, the blade needs to be replaced. Remove the blade bolt and blade.
File the edges of the blade with a flat file; move with the blade grain. Follow the blade's original contour while removing equal amounts of metal from each end of the blade.
Insert a pencil or screwdriver into the blade's center hole. Hold the pencil or screwdriver straight to determine if the blade tips in one direction or another. File the heavier blade end, which is the lower end. File a small amount of the metal at a time until the blade ends balance.
Install the blade on the mower and tighten the bolt with the wrench. Reconnect the spark plug wire.
