Many people that buy petrol lawn mowers do not realize that they need to do a bit more than change the oil and make sure the blade is in good condition. In particular, you should always make sure that you change or clean the spark plug on a regular basis. This will also give you an opportunity to check for cracks in the wire casing, as well as help you understand the overall condition of the engine.

If you have ever performed routine maintenance on an auto mobile engine, then you may realize that certain types of corrosion or discolouration on the spark plugs can serve as vital indicators about engine wear. For example, if the tip of the plug has black, oily reside on it, then you know that the engine is burning oil. While a lawn mower engine is much smaller and less complicated than an auto mobile engine, it still works on the same principles. Therefore, when it comes to maintaining garden lawn mowers, you can look at spark plugs in order to estimate how long the mower will last.

During the process of maintaining petrol lawnmowers, you should also make it a point to change the air filter. Unfortunately, most people simply leave the filter in place for the life of the mower. Needless to say, when the filter gets clogged, it will deprive the engine of air, and cause the engine to die out more. Chances are, you would be amazed at how much better your lawn mower will perform when you change this filter on a regular basis.