What to do when your lawnmower won’t start

Over time, a lawnmower can break or malfunction. If this happens when you are in the middle of mowing, you might be tempted to throw it in frustration and just buy a new one. However, with a few simple steps, you may be able to correct the problem yourself, thus avoiding both wasting your money on purchasing another lawnmower and causing unnecessary pollution by throwing out an otherwise good product.

Steps to take when lawnmower doesn’t start

1) Ensure that there is gas in the tank. Make sure that there is enough gasoline in the tank for the engine to run smoothly. Even if it seems like there should be plenty of fuel left, adding more ensures that optimum power will be achieved while cutting your grass. The amount of gas needed changes from machine to machine, but as a rule, try adding more if the lawnmower isn’t running as smoothly as you would like it to.



2) Check that the spark plug is in working condition. Make sure to check whether or not the spark plug is loose and corroded by cleaning it off carefully. If it seems worn down, broken, or corroded over time, consider getting a new one and installing it, following your owner’s manual for directions. This should solve the problem immediately. Of course, this step does not apply if you have an electric start lawn mower because these do not have a spark plug to worry about!

3) Change the engine oil According to most professional landscapers, changing out your engine oil is the best solution to solving a lawnmower that won’t start. If this problem has occurred, it’s most likely due to lack of engine oil or dirty, sludgy oil being present in the motor. Simply drain out the old oil and then replace it with new ones following your owner’s manual instructions.

4) Check for loose bolts A loose blade bolt may be the culprit here. Tighten any bolts you find are loose with an adjustable wrench making sure not to tighten too much because this might strip them out completely, causing major problems later on. A stripped bolt can create all sorts of problems for you down the line when trying to cut the grass, so don’t ignore this problem!

5) Take a look at the air filter. First, inspect your air filter and make sure that it is in good condition. A dirty, clogged-up filter reduces airflow causing the engine to have a harder time breathing. If you see dirt or twigs in it, simply remove them from the outside of the casing by tapping on one side of the exterior with a large wrench. Then use a screwdriver to punch out any smaller pieces stuck inside.

6) Check for loose drive belt. Make sure that your drive belt is properly centered and not too loose. You can tighten this string-type belt with an adjustable wrench, making sure not to tighten it too much just in case. Otherwise, replacing a broken drive belt requires some tools and mechanical knowledge, so unless you are an avid do-it-yourselfer, it’s usually best to call a professional for this step!



7) Check the oil level. If you have checked all of the previous steps and tried restarting the lawnmower multiple times with no luck, take out the spark plug once more and put some engine oil into its hole. Make sure that you use only enough oil to see visible signs of it inside the casing. This should help solve any problems that might occur later on during usage.

8) Add fuel stabilizer If there is still a problem after performing all of the above steps, adding a gas stabilizer directly into your gasoline tank might be necessary. Once added according to instructions, let your lawnmower sit overnight so that the stabilizer can work its magic. Then try starting up your lawnmower in the morning to see if it works properly.

9) Call a professional If all of the above steps fail, simply call a professional to fix your lawnmower for you or buy a new one. No matter what the problem with an electric starter lawnmower is, they are not complicated at all, making them easy to fix yourself!

10) Mow when wet People often use their lawnmowers when they’re wet because it “can’t be that hard” or something similar. They think that they’ll cause damage to the blades by using them when wet and maybe even rusting them too fast. However, this is not the case! Lawnmowers are made to be used in wet weather, though obviously, you should avoid wet grass, which can cause problems for your lawn mower’s motor.

An electric start lawnmower only works if the ignition is turned on. So if your lawnmower has been sitting around unused for a while, charge its battery before using it again to make sure that it turns on correctly.

11) Be prepared for cold weather. Just as mentioned above, you should always charge up your lawn mower’s battery if it hasn’t been used in a long time. This helps prevent problems from occurring when trying to start up the engine again during cold weather conditions too! Once a day or so, try starting up your lawnmower outside first thing in the morning and allow it to run for a few minutes without cutting grass just to warm up its engine. This will avoid problems related to cold weather down the line.

12) Lawnmowers really aren’t dangerous. Most people think lawnmowers are very hard to use because they might be afraid of cutting themselves on the blades. This is not true, however. If you follow all safety precautions and do not rush, you should have no problems at all. Wear proper clothing, including eye protection when necessary, and keep your hands away from any moving parts while it is running. By taking care of your lawnmower, you’ll never have any difficulties starting or using it!

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