Here are some guidelines to resurrect your lawnmower along with other small equipment from their winter nap and get them ready for normal warm weather use. None of this is rocket science, but tried and tested steps that can make your mower run its best and provide you with the most years of service possible.
Remove the spark plug and replace the air conditioning filter
This can be a provision, while you never want to do any kind of use the engine or a sharp blade without disabling the power supply in the equipment.
Your mower needs a climate filter every season. If the filter is one of the foam variety, fix it. For those who have a more affordable paper filter, change it.
Change the oil
Changing the oil once a season (under normal use) keeps the motor healthy and removes the contaminants, sludge and acids that eat away at engine surfaces over time. Drain that old oil out and refill the crankcase using the type of oil and also the amount that's recommended through the equipment manufacturer.
Sharpen the mower blade
The usual understanding says to sharpen blades annually. A clear, crisp blade will cut the grass cleanly rather than shredding the grass just like a dull blade will. For safety, you should remove the blade, and when the blade has nicks in it (from the time you might have hit stones or any other hard objects), it will be time for you to replace the blade. There are numerous places to have the blade sharpened, and you may also do it by handle having a rotary tool (such as a Dremel).
Clean and lubricate
When you possess the blade off, you should take away the grass that gets caked on the underside of the mower and the deck. Remove grass and other debris from the the surface of the mower, and wax the clean deck to keep grass from sticking to it. Oil the wheel bearings and other areas as recommended by the equipment's owners manual.
Adjust the cutting height - longer is better
Ask lawn professionals about the most common mistake made and they're going to express it is cutting the grass way too short. Lawns cut to some taller length are usually healthier and more weed resistant, as well as holding water better. So adjust your cutting height to between 3-4 inches. Optimal cutting height actually depends upon the kind of grass you've. For those who have St. Augustine grass like many people in Florida do, you'll work between 2-3 inches. It's easy to find accurate info on this should you to research the internet. Just don't cut the grass way too short and it will be healthier long-term.
Add ethanol fuel additive before refilling gas tank
If you left fuel within the tank before putting it away for the winter, hopefully you treated the fuel by having an ethanol protectant to guarantee the fuel stayed fresh within the winter and didn't separate. When you add fresh fuel, add more ethanol fuel treatment. Whatever you decide to include should contain water absorbers to deal with the water it's going to absorb within the season and a protecting lubricant to slow the solvency damage that ethanol is wearing lawn equipment. Treating the fuel is a vital step to making your mower last its longest.
Lastly, replace your spark plug and you are all set for another season.