Most people that have gardens end up with either petrol, manual or electric lawnmowers. Today, we will describe basic service on a petrol lawnmower, which is a bit more complicated. Now, a word of caution: when you purchase a lawnmower, make sure that you keep the booklet and the date of your purchase because if it is in warranty, then you want to take it to a preferred dealer where it can get serviced. If it is out of warranty, then, by all means, you can do the maintenance which entails.
Changing the Spark Plug
Before changing the spark plug, you need to unplug the HT cable to expose the spark plug. Never start fiddling with your lawnmower while the HT cable is still plugged in the mower to avoid accidentally activating the lawnmower. Once you have detached the HT cable, look for a spark plug spanner. Remember not to take any shortcuts. Don't use a spark plug spanner because you could break the spark plug off in the housing, and then you'll have another problem. Pop the spark plug spanner on the spark plug and, keeping it straight as you can, unscrew the plug. After removing the old spark plug, wait a few minutes before you install the new spark plug yet.
Changing the Air Filter
The air filter is pretty simple, and it’s generally on the opposite side to where the exhaust is located. This activity is to be done on your basic service, which is done once a year. Press the clips on the air filter cover and pull outwards to expose the paper filter. Remove the old paper filter, pop in a new paper filter, and put back the air filter cover in place.
Changing the Oil
The interesting thing with petrol lawnmowers is that the plug sump is mounted in a challenging position for you to drain it normally. So, short of undoing the plug sump and letting the oil spill all over, the other option is turning the lawnmower upside down. If you feel uncomfortable overturning the mower, use a big syringe with attached tubing. To get started, unscrew the dipstick indicator, take the tubing attached to the tubing, insert it into the sump, and pull on the syringe. After extracting the old oil, you are going to put in the fresh oil. Make sure that you use the correct oil according to your manufacturer’s specifications. Once you have added in your oil, replace your dipstick, and screw it into place.
Lean the mower on the two wheels opposite to you and put some blocks of wood underneath it for support. We advise you not to put the spark plug yet because the blade could do some damage if the mower where to start. Use a spanner to remove the old blade and gently install the new blade with your thick gloves. Remember to lubricate all moving parts and then put the new spark plug in its rightful place.