As we transition into winter, it is likely that the small engines used frequently in warm weather are going into the shed or garage for storage. During this time it is important to create a small engine storage routine. Proper storage will extend the life of your engine, and ensure a smooth transition when spring arrives. Cleaning and repairs can be done during the fall, prior to storage. Read to learn about winter maintenance tasks for small engines.
Fuel Preparation
Removing excess fuel is a key task to ensure the longevity of your small engine. Evaporated fuel can gum up the carburetor and cause engine damage. At the end of the season, fill the fuel tank just enough to complete one final task and then let the engine run until there is no gas in the tank. Try one last time to start the engine to make sure there is no fuel left. Consult your manual to determine if you should run a stabilizer through your engine as well.
Spark Plug Maintenance
The transition into winter is also a good time to check, and likely replace, your spark plugs. (Spark plugs should also be changed after every 100 hours of use.) Remove the spark plug carefully. Then, put a couple of drops of oil into the cylinder and crank the engine. This will coat the walls and valves to prevent rust. Spark plugs vary greatly so when replacing make sure you consult the part number on the existing plug.
Oil and Air Filter Cleaning/Replacement
A healthy engine has clean oil and air filters. Foam filters can be washed in soap and water, dried, recoated with oil, and reinstalled. Paper filters should be replaced.
General Engine Cleaning
Remove all debris from the exterior. Touch up any rusted surfaces. Replace any damaged or corroded parts.
Caring For Small Engines that See Winter Use
While mowers are put away for the cold months, other small engines like those in snow blowers and generators, are used throughout the winter. For winter engines, ensure that you have the right lubrication. Generally, oils that have a W included in the label are appropriate for winter use. For two-cylinder winter engines, replace the spark plug and check the fuel condition. You may also need to drain the fuel tank and replace it with fresh gas. As a general rule, check belts, the fuel line, and other parts thoroughly before putting an engine to use.
Taking a little extra time for small engine maintenance and winterization can go a long way in the life of your machine. Save yourself the springtime headache and work on your small engine today!