Anyone can save money by doing the basic service1

The list of required things include wire brush, SAE30 oil, black enamel paint spray can, face mask, heavy duty gloves, cleaning rags, replacement spark plug (only if it is necessary) and a recipient for used oil.

Empty the fuel tank and start the engine to burn any remaining fuel from fuel lines and the carburetor. As a next step, disengage the spark plug lead for safety reasons.

The used engine oil should also be drained out. Use a recipient to collect the old oil to properly dispose it later on. It is important not to allow the oil to get onto the ground. Don't put back the dipstick as a reminder that the engine has no oil in it.

Clean the mower from grass and dirt, as the engine can seize if some debris gets into it. Eliminate dirt from the cooling fins of the engine. You might have to remove a cover to do that. If you have no prior experience in maintaining your mower, take photos to make sure you'll put back all pieces in the right order. Your memory can play you tricks, so it is better to take pictures.

The deck should also be cleaned. Lean the mower on its side with the carburetor side up. Fix the blade in place with a block of wood to immobilize it. Remove the blade using a pair of heavy duty gloves. Get rid of debris from the bottom of the deck. Next, wire brush and spray the bottom of the deck with black enamel paint. The painting will prolong the life of the machine. Before placing back the blade, sharpen and balance it with a professional. Set the machine upright.

Remove the spark plug to wire brush and properly clean it. Make sure to replace the spark plug if it is worn. The carburetor air filter should also be cleaned and replaced. Use SAE30 oil to refill the engine, making sure you are not over filling it. Check the level with the dipstick. Wait for a minutes and check the level again. For adequate reading wipe the dipstick.

The state of the starter pull cord also needs to be checked. Have the service dealer replace it if the cord is frayed or damaged. Check the belts (if the machine is self-propelled) and replace them if necessary, and lubricate the cables.

With these simple operations you have saved yourself at least $100.