How To Start A Gasoline Lawn Mower

Drying the body

How To Start A Gasoline Lawn Mower

Proper maintenance means washing the case after each use, which makes it more likely that water droplets remaining on the case will freeze in winter and damage the paintwork or rubbing parts.

Therefore, before leaving the mower for long-term (winter) storage, it is necessary to thoroughly blow out the casing from all sides using a blower, Paying special attention to the junction of the wheel axles and bushings that act as a bearing.

If the wheel axles are mounted on bearings, then the bearings must be carefully blown from all available directions in order to remove even the smallest particles of moisture from them.


The lawn mowers should be stored in dry, well-ventilated areas. For short-term storage, no preparatory actions are required, it is enough to set the device to its intended place and fold the handle.

If the shelf life exceeds a couple of months, then the device must be prepared, for which the following steps are performed:

  • Drain gasoline and oil;
  • Dry the body;
  • Conserve rods and bearings;
  • Check and, if necessary, sharpen the knife.

Foldable handle with controls

Most of the controls are mounted on the folding handle, such as:

  • Engine shutdown button;
  • Throttle (throttle) handle
  • Lever for connecting the knife to the motor shaft;
  • Drive connection lever (self-propelled only)
  • Drive speed change lever (only on models with CVT or hydrostatic transmission).

All control elements are connected to the corresponding units and units of the lawn mower through an electric or cable drive, both types of drives need to be serviced from time to time. In addition, a mechanism for changing its height is provided on the folding handle, which allows you to adjust the mower for a person of any height.


Chassis differ both in the number of wheels and in the way they are attached.

By the number of wheels, they are divided into:

  • Two-wheeled (such chassis are used only for wheel trimmers and machines intended for mowing weeds or hay)
  • Three-wheeled (such chassis are characterized by maximum maneuverability)
  • Four-wheeled.

According to the method of mounting the wheels, the chassis are divided into:

  • Bolted (The cheapest, but extremely unreliable type of connection, requiring constant tightening of a bolt or nut);
  • On a common axle with bushings (this method of fastening is more reliable than bolts, but the bushings must be cleaned and lubricated often, otherwise they will become clogged with mowed grass, which sharply increases the resistance to movement)
  • On a common axle with a bearing (This is the most reliable and comfortable type of chassis, because the bearings are protected from the ingress of crushed grass, and also from the factory they are filled with the amount of lubricant required for the entire service life).

Mower maintenance

After the end of the mowing and cleaning the device from grass residues, the lawn mower must be serviced, that is, check:

  • The condition of the knives;
  • Fastening and ease of rotation of the wheels;
  • Tighten all bolted connections;
  • The softness of the stroke of all control sticks;
  • The condition of the paintwork (LCP) of the body.

If a defect is found, then it is necessary either to immediately eliminate it, or to write down a list of malfunctions somewhere in order to repair the device in your free time and have time to do this before the start of a new Mowing.

If defects are found on the paintwork of the case (most often these are various scratches), then it is advisable to immediately either paint them over with paint compatible with paintwork, or treat with silicone spray, which will protect the paint and metal from further destruction.

Preparing for mowing

This operation is especially important after a long break or a heavy duty operation of the mower.

Preparation for mowing includes:

  • Visual inspection of the mower for visible defects, including loose bolts or nuts;
  • Checking the oil level in the engine, followed by topping up or replacing;
  • Checking the condition of the belt, gearbox and knife, with subsequent maintenance, that is, replacement, repair, sharpening or lubrication, if necessary;
  • Checking the condition of all controls and lubricating / servicing them if necessary;
  • Checking the level of gasoline, as well as refilling it, if necessary;
  • Adjusting the folding handle for the operator’s height.

All these procedures are described in detail in the instruction manual, therefore, it is necessary to carefully read this document, and also keep it always at hand in case of any emergency.

In addition, on a mower whose wheels are bolted to the frame, it is necessary to make sure that the wheels are securely fixed, as well as their free rotation, and, if necessary, fix them or lubricate them.


  • Always clean your lawn mower after work. Dried grass can stick firmly to it. It also smells bad when it starts to rot. Therefore, as soon as you are done mowing, clear the mower of grass.
  • Never leave the mower over the winter with gasoline in the tank. During storage, it can thicken and clog the carburetor.
  • Never start your mower without proper lubrication, unless you love: buy new mowers every time.

Some reasons

It often happens that users of this kind of machine try save, they pour into the tank NOT fuel with the usual octane number, but something incomprehensible that has been in a plastic Canister for almost a dozen years.

The main thing. Fuel mixture!

In this case, the remnants of plastic dissolved in a brutal environment are doing so terrible things in the combustion chamber that you will definitely not be able to do without completely sorting out the mechanism. Petrol self-propelled lawn mowers choice. But you will certainly remember forever how to properly store fuel.

What to do, when the fuel was just normal, there is a spark, but the petrol trimmer won’t start? It may be that you just filled the candle with gasoline. In this case, you need to Unscrew it, wipe it with a clean cloth and dry it. reliable electronic scythe trimmers. By the way, it will be absolutely useful to check the candle itself for performance.

How to start a gasoline lawn mower: we disassemble in detail

How will the lawnmower start? Pull the cord! Okay, we agree. Sometimes this is not enough. Given that some lawn mowers start differently depending on the model, in this article we will give you some general tips. Continue reading!

Refuel the mower with petrol and check the oil level. You may have forgotten to do this. It happens to everyone. But if it contains oil and gasoline, then you can pull the cord even all day, and you will achieve nothing but muscle pain and the chance that your children will learn from you not very good words.

  • Open the fuel tank cap and look into it. If necessary, prime the mower to the recommended level. There should be a label in the tank to indicate to you what level you need to fill the tank, but if it is not there, then fill it to the neck. DO NOT overfill the tank.
  • Be sure to check the oil level. If there is not enough oil, you can easily ruin the engine. The oil is usually poured through the caps on the top of the mower body, which says oil or images oiler. Just like in a car, your mower may have a special dipstick with which you can check the oil level in the engine.
  • Please note that some mowers (mainly with two-stroke engines) use a fuel / oil mixture. If so, read the user manual carefully before refueling the mower.

Bleed the fuel pump! Find a soft cap, usually red or black, near the spark plug. Click on it 3-4 times to fill the carburetor with gasoline. Just do not overdo it and do NOT flood the engine.

  • But not all mowers have such a pump. In this case, you will need to fully open the throttle.

Check the candle. The plug should be near the engine and have a rubber cap. It produces a spark to start the engine, so make sure the cap fits snugly.

Open the throttle. Shift the throttle lever to the middle or full last position. Otherwise, the engine will not receive enough fuel to operate.

Be careful when starting the engine. Most new mowers now come with a safety switch that must be held down when starting. If your mower has such a switch, then make sure it is stable on the ground.

Pull the cord sharply! With one hand, rest against the body of the mower, and with the other grasp the cord and pull it sharply up. You may need to do this several times before the engine starts.

  • If the engine sneezes but does not start, then check if there is enough gas in the tank.
  • If the engine does NOT sneeze and does NOT start, then check the spark plug.

Read the mower’s operating instructions. If the windrower still won’t start, read the instructions in the troubleshooting section. It is quite possible that there will be an answer to your question.

Reasons why the lawnmower may not start

The petrol lawn mower may not start for the following reasons:

  • First, before starting the engine, you need to check the fuel in the tank. A small amount of it will create an airy system, but it is also impossible to fill the tank full to the brim. When refueling, you must adhere to the label for the highest fuel level. If the mower is leaving for winter storage, the fuel must be drained because gasoline tends to evaporate. Refueling is done using a funnel. The engine cannot be started by drying out by the case of spilled gasoline on the parts of the mower, in order to avoid the ignition of combustible water.
  • Often, the engine of a lawn mower does NOT start because the user cannot start it correctly. Before starting, the lever is set to maximum speed, and then gasoline is pumped into the carburetor with a primer. The cord is gently pulled towards itself a little, and then pulled sharply.
  • After failed attempts to start the engine, you can try changing the spark plug. Often the reason lies precisely in it. If you have a spare candle at hand, and the old one is covered with heavy carbon, it must be cleaned with fine-grained sandpaper.
  • A clogged air filter leads to the preparation of a poor-quality fuel mixture, and the engine starts to stall or, in general, does not start. Correct the problem by easily washing the removed filter in clean gasoline and then air-drying it. The air filters must be flushed every 25 hours of operation, even if the mower does NOT stall.
  • Immediately after starting, the engine may stall due to a seized piston or crankshaft. Having unscrewed the spark plug with the starter cord, it is necessary to bleed the engine several times. Perhaps moving parts will develop and the malfunction will be repaired.
  • Low oil level in the crankcase may cause the engine to not start.

Electric lawn mowers also have their own easily solved problems:

  • A banal premise that the electric motor of the lawn mower does not work may be a lack of electricity or low voltage. You can find out if there is current in the network using a screwdriver indicator, but to measure the voltage you need a multimeter.
  • The electric mower is equipped with a thermal motor protection. Due to the vents clogged with grass, the protection will constantly trip, do not let the electric motor run. Solve the problem easily by cleaning the ventilation holes.
  • A defective switch may be the cause of NOT operating the mower motor. Here you will have to contact the service center or replace the broken part yourself.

If none of the above tips helped to start the unit, you don’t need to touch anything else, but it is better to contact a specialist.

They talk about preparing the lawn mower for launch:

Refueling the fuel tank

  • Before starting the device, it is imperative to make sure that there is gasoline in the mower tank and the oil level is in place. It is possible that you forgot to pour it. It happens to everyone? If there is no gasoline in the mowers and there is not a sufficient oil level, then the device can be started at least all day.
  • Unscrew the petrol cap and see if there is petrol there. If you need to add gasoline to the required level, do so. The tank, as a rule, should be marked so that you know to what level the gasoline needs to be filled. If there are marks, then gasoline is poured into the level of the neck. At the same time, be aware that it is not worth overfilling the tank.
  • It is not superfluous to check the oil level in the mower. If not, then you can quickly disable the engine. Oil, as a rule, is poured through the top cover of the device (body) of the mower, usually the hole is marked with the word oil or images of an oil can icon. It is not excluded that, as in the car, your trimmer will have a special dipstick.Using it, you can measure the level of the oil in the engine.
  • It is worth paying attention to the fact that some models of mowers (especially with a two-stroke engine) use mixed fuel, gasoline and oil for operation. If this is the case with your mower, be sure to read the instructions for mixing the two fluids. Then you can refuel the mower.

How to start a petrol mower

Don’t know how to start a petrol mower? We will tell you. In any village, in a summer cottage, in a country house for leveling lawn grass or weeds, cleaning the territory in the garden or vegetable garden, there must be a mower and, best of all, if it is gasoline.

The crackling and noise generated from using a gasoline mower can be heard from the first day of summer in late autumn until the grass growth is significantly reduced. Gasoline mowers have gained immense popularity due to their ease of use. Such a device is easy to use and care for the lawn, in case of failure it is not difficult to repair it. Below we will take a closer look at how the process of starting a gasoline mower is carried out.


The first run-in of the mower

When your device was used by you, do not rush to work with it right there. Give him time to work a little, run around. 5 minutes are required when starting the engine for the first time to idle. As long as the engine is warming up well, you can adjust the choke to prevent the cutter from spinning off the spool. As soon as the mower warms up well, you can safely open the air supply completely and start mowing.

  • Press the throttle stick with light force, work in the depressed position for up to 30 seconds. Then you can release the gas and let your mower run again for a longer time, up to about 50 seconds. In this mode, you can work up to 15 minutes without rest for the device. Then turn off our mower and give it about 20 minutes to rest.
  • Having cooled our equipment, you can continue to run the motor in the same way as described above. We put the trimmer on hot and always with an open air damper. Try not to store it for a long time during operation, because the parts moving inside the motor will surely start rubbing against each other. At idle, also the engine should NOT run, because it can overheat.

The next step is to properly run in the gearbox of our trimmer. To do this, you need to decide on a patch of grass, it must be NOT tall and young. We mow the grass for about 10 minutes, with a phased rest of the device as described above. The cycle is repeated at least 4.5 times.

Important! In general, running in a gasoline mower according to the above described algorithm should be carried out by you with a full tank of gasoline, but the last drop of the fuel mixture is produced. After such running-in, the tool will be ready for you for further, long-term work. In the process of squinting the grass, be sure to make sure that the temperature of the motor and gearbox is not exceeded. Both of THESE units should be overheated.

Your first launch

When gasoline is filled and the rest of the fuel mixture is present, the most crucial moment of the first start of the gasoline spit comes. In order for the first start of the mower to go smoothly, you must correctly follow the start instructions.

  • We place the lawn mower on a flat surface that we are going to start.
  • The choke control lever must be switched to the mode (position) closed.
  • We do a few strokes of the primer so that the gasoline fuel enters the carburetor.
  • Turn on the ignition button.
  • Try to pull out the starting cord smoothly, until you feel a little resistance.
  • Then you can make a few sharp jerks 3.4 The reference lawnmower should start.
  • After that, you can fully open the air damper.


After being squinted, it is no longer necessary to clean it. Since all the dried grass can stick to it strongly and it will be difficult to tear it off. On top of all this, the grass will start to rot on the mower body and smell bad. Therefore, our advice to you, after each mowing, it is advisable to clean the mower from dirt and remaining grass.

  • It is also forbidden to leave gasoline in the tank in winter. Gasoline can thicken heavily during storage and damage your carburetor.
  • You can not start a gasoline mower without proper lubrication after storage if you have the desire to constantly buy a new machine.