What kind of gas you need for your grass trimmer?

What kind of gasoline is needed for a grass trimmer?

Our grass trimmers use vacuum carburetors. When disassembling, cleaning or washing it, you need to be extremely careful. in no case disassemble the lower part of the carburetor, where the primer is. The air filter (you can see it if you remove the protective cover from the carburetor) needs to be washed with detergents. Best for washing up. After drying, put it back. Flush the carburetor with clean gasoline and blow out all the holes with a pump. We also wash the fuel line filter, then dry and assemble everything. Usually after all these operations the weed trimmer starts working.

A thin rope instead of a fishing line. is it worth it on a brushcutter??

This idea occurs to almost everyone who has mowed 10 acres overgrown with tall grass. At first glance, this seems like a good idea. The cable is stronger than the fishing line, it does not wear out as much. However, not everything is so simple.

Which oil to choose?

To get the grass trimmer to work efficiently, it is necessary to choose an oil for two-stroke engines. This is due to the absence of an oil sump in such a device. Depending on the chemical composition of the oil, the following classification is distinguished:

  • mineral. based on petroleum distillate, suitable for low-power machinery and with air type cooling, but requires frequent changes and can only be used in good weather in warm seasons;
  • semi-synthetic. suitable for garden equipment with air and liquid type of cooling;
  • Synthetic oils. based on esters, they do not need frequent changes and can be used at any time of the year.

Oil for 2-stroke engines is characterized by good solubility and the feature of complete combustion. For grass trimmer it is recommended to use a lubricant that is suitable for devices with air cooling system. Most often the packaging indicates that the oil is intended for garden equipment and is labeled TA, TV or TC. The latter is the preferred choice.

Often manufacturers of chain saws produce a suitable oil, so you can make the choice easier if you pick up a liquid of the appropriate brand.

Types of brushcutter

Today on liquid profile trading platforms a wide range of mechanisms for cutting grass, small bushes. For example, there are lawn mowers with an electric engine, with gasoline power units. Diesel brushcutters are not produced because they have low revs.

Liquid statistics show the advantage of brushcutters with internal combustion engines over their electric counterparts. The electric brushcutter is used in places where there is a fixed electrical network.

Rules for correct fuel mixture

For many beginners who have bought a brushcutter, the question of diluting gasoline with oil to prepare gasoline mixture becomes a problem. You need to know the proportions and stick to them very scrupulously. The instructions for the product usually tell you in what ratio to dilute the constituents: 1:25 or 1:32 or 1:40 or 1:50. This means that for 1 part oil, take 25, 32, 40 or 50 parts gasoline and mix them.

Of course, it’s not convenient to measure in such categories, so it’s better to determine by simple mathematical calculations how much oil you need per liter of gasoline. You need to divide 1 liter, which is equal to 1000 ml, by the known proportion. You get the following mixing table.

Ratio Gasoline (ml) oil (ml)
1:25 1000 40
1:32 1000 32
1:40 1000 25
1:50 1000 20

Most often mineral oils should be diluted in the proportion 1:40, and 1:50. synthetic brands. So for budget Chinese brushcutter the ratio is totally different. 1:32 or 1:25. This is due to the fact that low-power models made in China use a different assembly, and the distance between the piston and cylinder is much larger.

Advice! To measure the fuel, it is best to use a measuring jug with graduations. Even a normal syringe is suitable for this.

Further steps have the following sequence.

  • First you fill the canister with petrol and then add the correct amount of oil. If you pour out the oil first, it will settle on the walls of the container due to its higher density and will not mix well.
  • The next step is to mix the contents of the canister thoroughly by means of circular movements of the closed container.
  • After diluting to homogeneity the fuel must be poured into the fuel tank of the lawnmower.

Weedeater Fuel Line Replacement

Important! Do not use the fuel tank immediately to prepare the mixture.

You can see a much more detailed and illustrative instruction in the video.

Standard ratios

It is not uncommon for problems with oil and fuel proportions for the reliable operation of a brushcutter. The reason for this is the totally different information in the sources. You may encounter a difference in the ratio data by a dozen units, and sometimes by half. You may wonder how much oil you really need per liter of gasoline: 20 ml or 40 ml. But for this, there is a technical passport for the product that you buy in the store. There should be a description of the device, the instructions for its operation and instructions on the rules of preparation of the fuel mixture.

First of all, you should take into account the information recommended by the manufacturer, because if your brushcutter breaks down, you can file a claim against it and not against a third-party source. If there is no instruction in the passport, and moreover, if there is no passport, we recommend to look for another grass trimmer model from a more reliable seller.

For all other cases, when you have a lawnmower model in your hands and there is no way to know its technical features, there are standard proportions of the most likely components of the fuel mixture for a two-stroke engine. These units mainly use AI-92 gasoline and special synthetic oil, which contains a solvent for better mixing with fuel. Such oil evaporates slowly and has the ability to burn completely in the cylinder without leaving a residue.

The standard ratio of synthetic oil to gasoline is 1: 50. This means that you need 100 ml of oil for 5 liters of gasoline, and accordingly, the oil consumption per 1 liter of gasoline is 20 ml. Knowing the amount of oil needed to dilute 1 liter of fuel, you can easily calculate any rates when preparing fuel for grass trimmer. When using mineral oils, the ratio of 1: 40 is most often standard. It therefore uses 25 ml for 1 litre of fuel and 125 ml for a 5-litre jerry can.

With a lawnmower in operation, it is not difficult for a person with little experience in such equipment to determine and correct the actual amount of oil needed for a specific model. One should only pay attention to the exhaust gases (their color, toxicity of the smell), the stability of the cycles, the engine heating and the developed power. about what consequences can be expected from the wrong proportions of petrol and oil mixing, covered in another section of the article. There are trimmer models that run on gasoline AI-95. This also has to be taken into account.

If the manufacturer recommends a fuel with this octane number, it is necessary to follow the requirements, so as not to reduce the operating life of the equipment.

Echo SRM-22 GES grass trimmer. Overview, performance,

The Echo SRM-22 GES grass trimmer is one of the smallest units in the whole model range. Designed for grass mowing in small areas, the engine power is only 0.91 l.с. The kit comes with a trimmer line and knife, so you can change them depending on the presence of vegetation on the site. The tank capacity is 0.44 l and fuel consumption at low load is 0.62 l/h.

The handle of the grass trimmer is comfortable, in the form of a bicycle handlebar. Anti-vibration system installed on the model, which increases comfort during operation. Air type engine cooling system, which reduces the risk of overheating. Noise output reduced to 82 dB. These features are an undeniable advantage over the use of large lawnmowers.

Advantages of gasoline grass trimmer ECHO SRM-22 GES:

  • The anti-vibration system;
  • Electronic ignition;
  • Optional fuel pump;
  • Maneuverability;
  • The fuel tank is made of translucent material, so you can see the amount of fuel;
  • The system of easy starting;
  • Gas lever lock;
  • The trimmer is easy to mow around fences, trees, etc.д.;
  • Lighter and more maneuverable than a lawn mower;
  • The two-stroke motor uses less fuel and does not weigh you down.

Disadvantages of the gasoline model grass trimmer Echo SRM-22 GES:

  • Noisy;
  • Non-detachable boom;
  • Contaminates the environment with exhaust fumes;
  • Requires more careful maintenance than electric mowers.

How to Fix a Trimmer That Won’t Start!

Basic equipment of gasoline grass trimmer Echo SRM-22 GES

Belt Protective hood Three-blade blade


Engine type petrol
Power output,kW/litre.с. 0,67/0,91
Engine displacement, cm3 21,2
Engine capacity 2,0
Cutting element Trimmer line, blade
Fuel tank capacity, l: 0,44
Weight, kg 4,72

Operating instructions

ECHO lawnmower works on a 50:1 mix of petrol and oil for two-stroke engines. Manufacturers recommend lead-free gasoline with an octane rating of at least 89.

Gasoline containing methylated spirit must not be mixed. The manual describes in more detail how to make a mixture.

Observe the following points when working with fuel oil:

  • Do not mix the ingredients directly in the tank.
  • No spillage of fuel mixture. If neatly failed, spillage must be wiped up immediately.
  • Handle gasoline with care, as there is a possibility of ignition.
  • Store fuel in a special container.
  • Do not make large quantities of fuel fluid, as it loses its properties.
  • Do not fill up fuel while engine is hot or running.
  • Fill fuel at the proper level, avoiding overfilling.
  • Do not fill 4-stroke motor oil.

For more information on operating and maintaining your mower, see the manual: Your browser does not support framesDownload Echo SRM-22GES Grass Trimmer User Manual

Overview of problems with the Echo SRM-22 GES grass trimmer

Owners reviews

Grass trimmer Echo SRM-22 GES is very popular among homeowners and landowners. Numerous online reviews testify to this. It is a simple and reliable lawn mower that consumes little gasoline.

“Was looking for a small and lightweight brushcutter for the country house and decided to buy the Echo SRM-22 GES. It’s easy to operate, easy to fill up and easy to maintain. I chose mainly because of the weight, so it would not be heavy to carry. For me, ECHO is loud, so I need headphones. No complaints.”

“Bought four years ago for the lawn. The trimmer for the grass ECHO copes with it perfectly, but the big weeds are difficult to mow. I like its economy, lightness and easy startup. I would have liked a more powerful motor, but I understand that then the mower is deprived of all its advantages, which I listed above. The belt that came with it, I do not use, because I bought a better one.”

Grass trimmer Echo SRM-22 GES. Review, characteristics, Link to main publication

Oil change

Lawn mower oil changes once a year, provided the technician only cleans the lawn in the summer. Best Time. Before the start of the season. Change the oil if it changes color to black in mid-summer. It is also recommended to change the oil after starting the equipment, that is, after 3-5 hours of operation from the first start.

For the convenience of consumers, manufacturers of garden equipment offer special kits for changing the oil product. The kit includes several items:

Start the mower ten minutes before changing the old oil. Warm oil is easier to drain, it is also removed together with impurities and debris. Then they wait for the equipment to cool down

It takes five minutes. It is important to disconnect the spark plug and drain the gasoline. Next, using a pump or syringe, the lubricant is downloaded. Some models have a plug through which the remaining fluid comes out

kind, need, your, grass, trimmer

It is located at the bottom of the housing. The waste must be completely removed. If the owner sees oil in the lawn mower air filter, clean the filter as well when changing the lubricants. Fresh oil is poured into the crankcase through the neck with a funnel. Using the dipstick to check the fluid level. Normally 0.5 liter is enough to fill the oil tank.

READ How to Wrap a Trimmer Filament on a STIHL Lawn Trimmer

It is not difficult to figure out how to fill a lawn mower, what oil and fuel to buy. Generally, an oil change takes about half an hour. It takes even less time to prepare the fuel mixture and refill the equipment.

How to service a lawn mower yourself. How to keep the engine and attachments in good condition

Lawn mowers are a popular tool for mowing unwanted vegetation in gardens, parks and orchards. But like any other equipment, lawn mowers require constant care, maintenance and sometimes minor repairs, which you can do yourself. If you buy a lawn mower, not an electric one, what kind of gasoline should you put in the fuel tank?? In this article, let’s review the basic principles of gasoline mower maintenance and tips on what to do with the machine before each start-up, how to prepare the fuel mixture and tell you some grass mowing secrets from experienced gardeners.

Maintaining the lawnmower

Here you will find information on how to take good care of all parts of the machine, how to make adjustments, how to disassemble it and what and how to lubricate the mower (moving parts).

Engine. Keep the air filter clean and free of oil and grease. Check the fuel filter at least once a week and replace it in good time if it is defective. The muffler and plugs must be cleaned regularly (as they become soiled). Check that all nuts and bolts are properly tightened before each use.

The bevel gear must be cleaned of dust and dirt as often as necessary since this prevents efficient cooling and then lubricated with any gear lubricant, e.g. STIHL.

Trimmer head with filament. The mowing head should be cleaned after each use of the grass trimmer, and replaced in a timely manner as soon as deformation or cracks are found. Only a special cord (trimmer line) should be used for trimmers, no ropes or wire! Filament diameter of line should be as advertised for each model. Cord must be wound tightly but not crosswise.

Cutting attachment (blades or blades). Metal products must always be sharpened (special templates and files exist for this purpose) at a special angle. For double-sided models it is advisable to turn them over from time to time to ensure even wear and tear. Dull or improperly sharpened discs and blades cause overloading of the engine and shorten the service life.

Protective guards must always be worn during mowing. They protect the operator from flying grass and stones from under the cutting attachment and also reduce the load on the engine. After work, thoroughly clean the inner and outer surface of the hood with a jet of water or a soft cloth, taking care not to scratch the surface.

kind, need, your, grass, trimmer

How to adjust the lawnmower (carburetor)

Proper adjustment is the key to the successful operation of the unit in the future.

Beginners sometimes do not know how important this process is for gasoline mowers and gasoline trimmers, and miss it or simply do not know how to adjust the carburetor of the lawnmower, believing that the factory settings are quite enough. However, this is not the case. Inspection of all mechanisms and adjustment of the carburetor should be carried out regularly.

Important information and tips for adjusting the gasoline carburetor in gasoline-powered mowers:

  • The carburetor has 3 screws: left (H), bottom (T) and right (L). To get to the screws, you need to know how to disassemble the lawnmower, and more specifically, how to get to the carburetor. This information should be specified in the product data sheet.
  • The lower screw (T) is responsible for idling, the right screw (L) for the amount of fuel entering the combustion chamber at low rpm, and the left screw (L) is responsible for fuel entering at high rpm.
  • Turn on carburetor at idle speed. Correctly adjusted, it works evenly when the engine is hot and cold, at low and high revolutions. If something goes wrong, turn the lower screw (T).
  • Adjust fuel flow at low RPM by turning the right-hand screw (L) a quarter turn counterclockwise.
  • Setting the carburetor at high RPM is as follows: open the throttle and press maximum throttle. Turn the left hand screw (H) clockwise until the rpm drops. After that, turn the screw counterclockwise until the engine is uneven. Then slowly turn the screw back clockwise until you hear the engine running smoothly and evenly.
  • The spark plug also serves as an indicator of proper carburetor adjustment. When malfunctions occur, soot appears on the spark plug, but with the correct setting, the working part will remain clean.
kind, need, your, grass, trimmer

This is the most universal algorithm on how to adjust the carburetor on a gasoline mower. Individual adjustment depends on the model configuration of your machine.

Preparing the fuel mixture for the lawnmower

Many novice users ask what kind of gasoline to pour into the lawnmower? In the passport of each mower must specify what fuel can be used with this particular model. But gasoline alone will not make the grasshopper work, you need a fuel mixture prepared in certain proportions. What is in the fuel for chain saws and gasoline-powered trimmers??

Gasoline. fit any high-octane (AI-92 and 95 and a density of 750 to 770 kg per cubic.м). Gasoline must be fresh and clean, which means

Oil. you can use oil for two-stroke engines (with speed of 10000-15000 rpm) of high quality, for example, STIHL, PATRIOT, Husqvarna, Bigmaster will also do.

Fuel mixture proportions. if not stated differently in the product passport, you can use this scheme: 1:50 (2 percent oil from 100 percent gasoline) or 20:1000 ml.

One example of how to prepare a fuel mix (in the proportion of 10 ml per 0.5 liter): pour 0.5 liter of petrol into a transparent container, carefully add 10 ml of oil (you can use a syringe without a needle), mix and pour the rest of the petrol in the end. Stir the resulting mixture thoroughly. If the gasoline is of poor quality, you can increase the oil volume to 25 ml.

Choosing the right oil for your chain saw

Two-stroke engines are filled with a mix of unleaded petrol and 2T oil. It is necessary to use recommended gasoline AI-92. If you use a brand with a higher octane number, the flashpoint and combustion temperature will be higher, the valves will burn out prematurely. The same applies to the oil. The recommended composition is not the most expensive. But it is not permissible to use a different brand. The viscosity will change, it will lead to insufficient lubrication of ordinary products made without high-precision lapping.

If too much oil is added, incomplete combustion will lead to carbon deposits and excessive exhaust emissions. A rich mixture is bad for the engine. For a four-stroke engine, oil is filled separately from gasoline. It washes nodes, cools, reduces friction. The oil gets contaminated during operation and must be changed after 50 operating hours. What oil to fill in the lawnmower, see the owner’s manual. The compound must be marked 4T with a viscosity of 10W40.

The best oil for any engine is considered to be the recommended. But the world famous oil is Shel Helix Ultra. Company spent 40 years developing new technology to produce synthetic oil from natural gas. Pureplus technology has made it possible to get an improved composition of base oil. On its basis, adding necessary additives, the leading manufacturers make recommended oils for their equipment.

Oil selection depends first of all on the manufacturer’s recommendations. For example, the oil for STIHL lawnmowers is used only brand-name oil. The same oil is good for Vityaz brand, as the engines in the brands are the same brand. There is an opinion of specialists that oil from any manufacturer, designed for one type of equipment, is suitable for use in all brands. But if there is a possibility, it is better to use the recommended one.

It is necessary to have oil in stock for one season. Product that has been sitting for a long time loses its properties. Available in packages from 0.1 to 5 liters.

Investigated the way of the oil recommended for Husqvarna lawnmowers. The company does not have its own production, only a bottling plant. The product, bought in bulk, is poured into small containers, labeled and goes into the trading network. It is possible that exclusive additives for Husqvarna have been added to the oil at the manufacturing stage.

You should always use oil, as specified in the instruction manual for your brushcutter. The machine cannot be operated on pure gasoline.