Lawn mowers are excellent time-saving tools. However, like all mechanical devices, the lawn mower has the potential to become damaged and will then need to be repaired. While the easiest way to repair the lawn mower is to take it to a small engine repair shop, those do-it-yourselfers can save a buck by repairing it themselves.
Both traditional and riding lawn mowers have the potential to cause injury both when performing repairs and when using a lawn mower that is broken. Injury can be caused by someone getting cut by the lawn mower blade, according to Lawn and Mower. Those performing repairs can be electrocuted by the electrical wiring. Also, people can be burned when they touch internal parts of the lawn mower before the lawn mower has completely cooled down.
When the lawn mower will not start, check to make sure that the lawn mower has enough fuel, according to Lawn and Mower. If the lawn mower has not been used in a long time, the oil in the lawn mower might be old and will probably need to be drained out and replaced with new oil. Make sure that the fuel shutoff valve is not blocking the flow of gasoline to the carburetor. Also, make sure that there is no debris in the fuel line or in the fuel tank that could block the flow of gasoline.
If the lawn mower spark plug is weak and yellow, the spark plug should be replaced with a new one, according to Lawn and Mower. If the spark that jumps from the spark plug is blue, the spark plug does not have to be replaced.
If there is an oil leak near the carburetor, the cover should be removed from the lawn mower. The cavity should be wiped out and a small wire should be poked down through the cavity, according to Lawn and Mower. The hole must be down before the cavity is put back on. Do not attempt this if the lawn mower is still hot.
Lawn mower technicians can be hired to repair severely damaged lawn mowers. These technicians have often completed an apprenticeship course or have taken a small engine repair course at a trade school, according to Education-Portal. These repairmen can work at hardware stores that provide repair services for their lawn mowers under warranty or they can be found working for professional landscaping services that repair their own lawn mowers.