How to correctly install the piston on a lawn mower

Cylinders, pistons, rings and other parts of the CPG suffer more than others from colossal loads and extremely high temperatures during engine operation.

Pistons, which are the main energy converter of the internal combustion engine, are constantly in contact with the inner walls of the cylinder and experience the negative effects of friction. Its strength increases with insufficient lubrication, too small gaps in the cylinder-piston pair, or deformation of the elements.

If malfunctions of the piston group occur for the first time, they are usually limited to installing a new set of rings. The pistons themselves can last two such replacements, but in the future they will also require updating, along with restoration of the correct cylinder geometry.

Let's look at some technological nuances related to wear and replacement of pistons.

Cylinder with piston for brush cutters OLEO-MAC SPARTA 40, 740T, EFCO 8400, 40mm

Payment:

Cash upon receipt.
To a current account. (VAT included)
To the Privat Bank card.
No additional interest or bank commission.

Used in models OLEO-MAC SPARTA 40, 740 T, EFCO 8400
brush cutters. Cylinder coating. chromium. Manufacturing class. A. Technology. injection molding.

The manufacturer of the spare part is TRÉSZER. Germany. Hochwertige Bauteile

WE RECOMMEND: When replacing the piston group, pay attention to the condition of the rubber pipe (elbow) connecting the cylinder and the carburetor. Despite the fact that the pipe is made of petrol-resistant rubber, over time it loses its properties, becomes rougher and can leak air

The pipe is inexpensive and it makes sense to replace it along with the cylinder.

How to correctly change the cylinder and piston of a chainsaw and lawn mower.

Make sure that the cylinder you want to install fits your model of chainsaw or brush cutter. Clean the carburetor It is very important to remove any old fuel from the fuel tank. Be sure to change the fuel filter. It is not recommended to use an old fuel filter. Clean the engine crankcase It is very good if it is possible to blow out the crankcase from the compressor. Carefully check that there are no foreign objects in the crankcase. Lubricate the crankshaft bearings

Use the highest quality lubricant. Wipe the cylinder you want to install with a rag soaked in solvent. Blow with air from the compressor. Install the piston rings onto the piston. Lubricate the piston pin and install the piston so that the arrow on it points in the direction of the exhaust. Attention! Install the retaining rings with great care. Lubricate the cylinder and piston rings before installation. Carefully place the cylinder in place. When replacing a piston group, always use a new cylinder gasket. Please note that some models of chainsaws and brush cutters use sealant. Tighten the cylinder mounting screws to the torque specified by the manufacturer. Grab the crankshaft and carefully turn the engine to make sure it rotates smoothly. For the first start, prepare the fuel mixture in a ratio of 25:1 and start the engine. Adjust the carburetor and try the tool in operation.

Manufacturer: TRÉSZER

Spare parts for chainsaws and brush cutters of the TRÉSZER brand are an excellent choice for professionals who work with motor tools in difficult conditions. Spare parts of this brand provide maximum performance and long service life. At the same time, the brand’s products have a low cost, which allows you to get a good economic effect when using a chainsaw or brush cutter to complete the assigned tasks.

The brand's assortment includes more than two hundred different types of spare parts. You can select all the necessary components for your chainsaw and brush cutter, from engine parts to plastic body kit elements. At the same time, you can always be sure that the spare parts will be of the highest quality and the price will be low.

For over 100 years, TRÉSZER brand products have been trusted by forest industry professionals in Western Europe. Since 2016, the products of this brand have become available to Ukrainian users.

Spare parts for chainsaws of the TRÉSZER brand are distinguished by high reliability, durability, a long warranty period and an affordable price. This is due to the fact that real professionals can trust only proven and most reliable brands. A long history and an approach to doing business that has been verified over the years with German accuracy. This is what fully characterizes the approach of the TRÉSZER brand to working with forestry and parks in Germany, France, Belgium and other European countries. For the company, the main priority is convenience for users and reliability of supplies, and we take on all concerns about quality and stock availability. Our company is the official representative of the TRÉSZER brand in Ukraine. We have every right to consult, service and sell products of this brand. To confirm our rights, TRÉSZER has issued us an official dealer certificateKörnerstraße 21, 23564 LübeckDeutschlandwww.treszer.comTrészer. Hochwertige Bauteile

Körnerstraße 21, 23564 LübeckDeutschlandwww.treszer.comTrészer. Hochwertige Bauteile

Sources:

https://jusof.com/kak-pravilno-stavit-porshen-na-trimmere/ https://mispm.ru/raznoe/ploshhad-benzopila-partner-kak-pravilno-postavit-porshen.html https://www .ms-motorservice.com/ru/tekhnipedija/post/ustanovka-porshnja-v-cilindr/ https://remontpil.com/zap-kosi/oleo-mac/740/zapchast2400.html

Cylinder liners

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Fault detection algorithm

The cause of saw failure or deterioration in its performance may be:

Before you begin disassembly, you should make sure that more extensive repairs are necessary.

It will most likely not be possible to independently assemble a new chainsaw after repair with the original quality. The design of modern chainsaws often uses press fits of mating parts, which have minimal repairability.

Even partial disassembly of a chainsaw using improvised tools can lead to undesirable consequences. In most cases, to eliminate a malfunction, you can limit yourself to dismantling a separate unit or system.

connecting rod and piston group;
carburetor;
clutch mechanism;
saw chain drive sprocket.

Engine

In most cases, the following problems occur in engine operation:

the engine stopped starting;
the engine starts, but after a while it stalls;
the engine is not able to develop the required power;
The engine is extremely unstable.

How to check crankshaft seals

The presence of oil seal leaks can only be checked by getting to the crankshaft itself and carefully examining it for leaks. You can see how to do this correctly in the video:

How to check compression on a chainsaw

At a compression level below 8 atmospheres, the engine will not have enough power, which means the chainsaw will not be able to fully function.

To measure compression you need:

Remove the protective cover and unscrew the spark plug.
Insert the tip of the compression gauge into the hole where the spark plug should be located.
Using the starting cord, rotate the piston and remember the maximum readings of the measuring device.

How to properly install a piston on a chainsaw

The work of replacing the piston for most models of modern chainsaws is carried out according to the following algorithm:

The top and side covers are removed.
The candle is unscrewed.
The stoppers are removed from the shock absorbers and the handle is disconnected from the body.
The drive sprocket and starter are removed.
A piston stopper is installed in the spark plug hole and the nut securing the flywheel and clutch is unscrewed.
The flywheel, clutch, and worm drive of the oil pump, located immediately behind the clutch mechanism, are removed.
The screws securing the carburetor and air filter are unscrewed, after which these components are removed along with the engine control lever.
The ignition coil is removed, as well as the muffler.
The saw is turned upside down and, by unscrewing the screws securing it to the body, the engine is disconnected.
The pan is unscrewed and the piston is removed.
Since the piston is removed only together with the crankshaft, to disconnect it it is necessary to remove the retaining rings.
The old piston is replaced with a new one, but as carefully as possible. This is caused by the high fragility of compression rings.
The crankcase is put in place, and sealant is used instead of a gasket.

All subsequent actions are carried out according to the reverse algorithm of disassembly.

Features of piston group selection

When selecting a new piston or piston-cylinder pair, be sure to pay attention to the correspondence of their markings. Each motorcycle model has from two to four piston size groups

Their diameter can vary from 0.01 to 0.025 mm.

The group marking is usually applied in the form of a stamp on the piston bottom and the lower end of the cylinder. Make sure these numbers match.

The cylinder must be bored before installing the piston. If the piston has sharp internal corners left after machining or due to casting defects, they must be rounded with a file and polished.

To position the piston correctly, follow the arrow stamped on the bottom of the part. If it is missing or not visible, position the piston in the same way as the locking pins: they should “look” at the vertical sectors of the liner without windows.

When choosing a suitable finger, pay attention to its markings. Just like pistons and cylinders, it belongs to one of several size groups

Usually a dot of a certain color is placed on the end of the pin; the same mark is on the boss inside the piston.

The piston pins of modern motorcycle engines typically engage the boss with a slight force at room temperature. In older models, the fingers were pressed in after heating in boiling water. To avoid mistakes, you should read the vehicle’s operating instructions.

Where does the arrow on the piston point?

Due to the fact that the pistons have the correct cylindrical shape, after removal, many inexperienced craftsmen are confused about how to properly return them to their place.

Remember the main rule: the arrow on the chainsaw piston points in the direction of the exhaust towards the exhaust hole of the cylinder.

Installing a piston on a Chinese lawn mower

The pistons in the cylinders in modern internal combustion engines have a very strict position, so the arrow always points in the direction where the exhaust gases move. If you still have questions, the garden tool has an instruction manual. Even if it is in English, it will not be difficult to translate it.

Why does my Stihl chainsaw not start after replacing the piston?

If the saw does not start after replacing the piston, it is necessary to check the fuel supply to the chamber and also diagnose the ignition system. Very often, when installing the control lever on a chainsaw, craftsmen forget to connect the wires coming from the ignition coil, as a result of which the spark disappears and the saw does not start.

In addition, the problem may be hidden in a pinched fuel supply hose or if it is not connected at all. Of course, there could be many reasons, but it is worth remembering that if all the piston replacement work is done correctly, the tool should start and work correctly without problems.

What can result from incorrect piston installation?

Incorrect installation of the piston ring in the chainsaw engine will lead to the fact that it will work strained and intermittently, and may stall. Eventually, at best, the piston or cylinder will be damaged. In the worst case, the engine itself will fail and require expensive repairs.

If your chainsaw needs repair or maintenance, take it immediately to a specialized service center. It is better to pay a specialist than to buy new garden tools.

Sources:

https://jusof.com/kak-pravilno-stavit-porshen-na-trimmere/ https://vseopilah.ru/trimmery/kak-ustanovit-porshen-v-tsilindr-na-trimmer/ https://navro. org/kuda-ukazyvaet-strelka-na-porshne-benzopily/

Fuel system

So that as the fuel mixture is used up, the fuel tank is filled with air and negative pressure is not created in it, which will prevent fuel from flowing from it into the carburetor, and at the same time, so that fuel does not flow out of the air hole, in the cap covering the filler hole, breather made. And by the way, if the breather becomes clogged with dirt, the chainsaw will stall.

Fuel is pumped from the tank through a hose that dangles freely in the tank. Husqvarna; who knows where the gas tank breather is and how its breather is located in the upper part. Thanks to this, regardless of the position of the chainsaw, the hose is always immersed in fuel. A fuel filter is attached to the inlet end of the hose. Fuel is pumped by a pump inside the carburetor.

To make starting easier, some chainsaws are equipped with a manual preparatory pump - a primer. When starting a chainsaw with a primer, the carburetor is filled with fuel in advance (excess fuel flows back into the tank). Thanks to this, the engine starts faster, because The stage of filling the carburetor with fuel has already been completed, which without a primer is carried out by the carburetor pump at the expense of the starter.

Causes of piston chainsaw problems

There are many reasons for failure of the CPG, which are usually divided into two main categories: natural wear and artificial failures. The first type of problem, as the name suggests, involves physical wear of the rubbing parts of the piston group. The second category is more extensive and implies:

severe overheating of the internal combustion engine and, as a result, the appearance of thermal scoring on the surface of the piston;
breakage of the lower part of the piston (skirt) due to the duration of operation of the chainsaw at maximum speed;
foreign particles entering the combustion chamber and causing mechanical damage to the CPG;
breakage of the compression (piston) ring due to severe wear or exceeding the permissible speed of the saw;
discrepancy between the recommended portions of gasoline and oil when preparing the fuel mixture.

Experts do not recommend disassembling the CPG without special reasons. However, if the tool has significantly lost power, there is a metallic ringing in the internal combustion engine, or the crankshaft does not turn when the starter jerks, the piston chainsaw should be diagnosed. First of all, to identify engine problems, it is necessary to measure the compression in the cylinder. If there is a significant deviation from the values recommended by the manufacturer, we can safely say that there are scratches, wear, or scuffing on the surface of the cylinder or piston. It is the drop in compression that is the basis for complete disassembly and repair of the piston group of the chainsaw.

To quickly diagnose the CPG for a broken chainsaw compression ring or scoring in the cylinder, professionals advise removing the muffler and assessing their condition through the exhaust window.

An incomplete list of chainsaws that are structurally similar to the Partner 350 XT chainsaw, for which the cylinder-piston group of the Partner (Partner) 350, 351() chainsaw is suitable:

Poulan 2150; Poulan 2250; Poulan 2550; Greenline GL 367; Piran 4016; Piran 350; Piran 351; Packard Spence PSGS 400d; Packard Spence PSGS 450d; Kingston KSCS 4200; McCULLOCH Mac 335; Priority 350; Delta BP-1600/16/V; Profer 360; Profer 361 and others.

Please note that the Partner 350 chainsaw was produced both with a body on shock absorbers (springs) and in a “rigid” body. Most of the spare parts for these chainsaws are absolutely similar, but some elements have slight differences, please take this into account when choosing spare parts for your Partner chainsaw. 350 XT and its analogues

350 XT and its analogues.

Our production

In our online store you can find and purchase new piston groups at low prices. A complete list of piston engines can be found at this link

Installing a piston with a larger volume than stock is perhaps the simplest, most affordable, affordable and effective way to significantly increase the maximum speed and power of a scooter. There are, of course, even more effective ways to increase maximum speed and power, but these methods, or rather the hardware, cost simply unrealistic money...

If you charge the engine of the same 139QMB to the maximum, then such tuning before the “increase” cost the client about 35,000 rubles and this does not include work.

Replacing a piston (CPG) on a 4t scooter

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Gradually the time comes and your two-wheeled four-stroke friend needs to change the piston. There may be 2 reasons for this: wear or installation of a more powerful piston. In this article we will tell you how to replace the piston (CPG) on a 4-stroke scooter with a 139QMB engine.

If you have a different engine model, for example 152QMI or 157QMJ (150 cc scooter), then this article will also suit you to replace the CPG, since there are no fundamental differences. For 2-stroke scooters, we recommend reading the article “Replacing the piston on a 2-stroke scooter”

Where to do repairs

The 4t piston system can be replaced either in a specialized workshop or independently.
The cost of repairing the piston will be considerable, but you can repair the moped yourself. The process of replacing a 4t piston on a Suzuki Sepia moped is quite painstaking and complex, so it must be approached with maximum attention and accuracy. Before starting to disassemble the moped, it is necessary to accurately diagnose the malfunction, that is, to absolutely determine that it is the piston on the Suzuki Sepia scooter that has become unusable

If you have doubts about your own abilities, it is better to immediately turn to specialists. The price for their services can be very different, you just need to find out how much it will cost. In a specialized station, technicians will not only correctly diagnose a faulty Suzuki Sepia moped, but will also replace the piston in accordance with all the rules. In order to return the 4t piston system to high-quality working condition, you may need special equipment that only professionals have, so you will need to drive the Suzuki Sepia moped to the station. But if you choose to replace the 4t piston system on a scooter yourself, then you should adhere to some rules, since the piston system on a scooter is a very complex mechanism.

REPLACEMENT piston group of chainsaw 4500

The video discusses a detailed replacement of the piston group of a chainsaw, How to do it correctly, step by step and without.

DOLMAR chainsaw. About three or four months ago this copy of the Dolmar chainsaw came into my hands.

Disassembly - assembly of the STIHL MS180 chainsaw. Request compliance rate: 21.43% Fragments of the post text. Disassembly - assembly of the STIHL MS180 chainsaw. Disassembling the STIHL MS180 chainsaw. Canadian craftsmen perceived the chainsaw as a piston mounted on installed on. Assembly of the STIHL MS180 chainsaw.

The rings and piston wear out first, and usually only those need to be replaced. If the piston is severely worn, it is necessary to bore the cylinder. It is also bored when the piston jams in the cylinder, forming deep scratches on the walls of the latter. There is nothing wrong with this, and if your new cylinder has been properly bored (which will only cost about 10), it will need a repair set of rings with a new piston. Such rings are marked 0.25. The second boring is 0.5, respectively, etc. to one.

After purchasing a piston, it needs to be assembled. In the kit, as a rule, you will find the piston itself, two compression rings, a third thin corrugated ring (more on its purpose later), a piston pin and two piston pin retaining rings.

Now about the third ring in the set. Its purpose is to spring the lower compression ring. It installs it directly under it, and usually does not provide any benefit during operation. Gasoline tools are an educational program. Search the blog for petrol powered tools - an educational program on how to properly install a piston on a chainsaw. 7 how to find out which headset to install on which chainsaw and the type and size of the chain. You can throw this ring away or you can put it in, it makes no difference. Many piston manufacturers do not include it at all.

It's time to put everything back in place. Depending on the scooter model, compression rings may be the same or vary in thickness and cross-section. Most pistons for Honda scooters, for example, have different rings, where the upper one is thinner than the lower one and has a different cross-section.

You should definitely pay attention to this when installing; the top one is thinner and ground at an angle. Also pay attention to the inscription on the ring (usually the letter T or repair size), the inscription should always be on top, that is, opposite to the finger

First you need to put on the bottom, then the top. There is no need to stretch or bend them. These manipulations must be carried out carefully

Also pay attention to the inscription on the ring (usually the letter T or repair size); the inscription should always be on top, that is, opposite to the finger. First you need to put on the bottom, then the top

There is no need to stretch or bend them. These manipulations must be carried out carefully.

There are locks in the grooves for the rings that prevent the rings from turning during operation, so the ring gap must be in these locks, otherwise you will not stick the piston into the cylinder.

When installing the piston pin, pay attention to the condition of the separator (bearing); it may need to be replaced. Before installing the piston pin, install the snap ring on one side before installing the piston (usually on the side where you will not be able to fit the pin and the second snap ring in)

Then place the pin with the bearing and the second retaining ring; when fixed in the groove, it will make a certain click.

That's all, now put on the cylinder, not the piston (remembering to check the condition of the gaskets and lubricate the piston and cylinder walls with engine oil), the cylinder head and tighten the bolts one by one in a cross pattern.

Progress:

First you need to make the base of the nozzle. To do this, use a grinder to cut out a square with a side of 100 mm from a metal plate. You need to mark it in such a way that there is a hole exactly in the center (at the intersection of the diagonals). To do this, from the center of the selected hole perpendicular to the short side of the plate, measure a distance of 50 mm and mark the trimming line.

We cut off the excess and get a square of 100 mm x 100 mm. Now you need to slightly round the corners and drill out the central hole for the trimmer shaft.

Round the corners and drill the central hole for the trimmer shaft

We cut the metal sheets, measuring 8 cm from each end. We get 4 blanks with ready-made holes.

These blanks must be shaped into knives. To do this, we mark the cutting line by eye (special precision is not required), fasten all 4 blanks together and grind off the excess.

As a result, we get knives of the same weight and size; they can be sharpened a little on one side. Now all the parts of the homemade trimmer attachment are prepared, you can start assembling.

We put a small washer on the screw and insert it into the corner hole. We put the knife on top, placing the sharpened side in the direction of rotation of the trimmer shaft. Next comes a large washer and a nut, which is not tightened so that the knife rotates freely. We attach the other 3 knives in the same way.

The end of the screw must be riveted so that the nut does not fly off.

The nozzle is ready. It is installed with nuts to the ground and secured in the same way as the three-bladed knife that comes with the trimmer. When colliding with a stone, the knives fold and go inward a little.

This idea was proposed by our regular video author Tatyana (Tula region). You can see in more detail the entire process of making such a trimmer attachment and learn some of the nuances by watching the video she prepared.

When working with a trimmer, it is important not to forget about safety precautions when using any attachments, especially homemade ones.

Where to place the piston arrow on 2- and 4-stroke engines | Pin offset (Desaxial) | Dnepr/Ural.

We invite you to discuss this idea in the comments to the publication. Share your thoughts with us and also tell us about your successful decisions.

Without taking either side of this heated (literally and figuratively) debate, let me show you one of the latest models of lawn mowers from the German company Robert Bosch. It has both a deflecting knife and an arc-shaped bracket, which prevents the knife from “striking” against objects not intended for mowing. I show a general view of the brush cutter and the knife itself, in two positions. General view of the brush cutter

Good evening everyone! Exactly three years have passed since the discussion of the “acute” problem for the trimmer. Over the past 1000 days, a clear picture has emerged: “Glory to the author - the craftsman who is conducting an experiment on himself to achieve the yield point of the metal from which these knives are made.

He has every right to risk his own health.” Nowadays, in stunt films you can often see the phrase - “Don’t try to repeat movie stunts that were performed by professional stuntmen.” The very first article should have ended with approximately the same phrase:

» Dear summer residents. This is my personal experiment. If you are not confident in your locksmith skills, please do not repeat it. AND THE MOST IMPORTANT THING - I am not responsible for the operation of the tool made in the wake of my article.” And one last thing. Do I see errors, judging by the photographs, of the implementation of this tool.

Alas, the author of this device does not even know how the hole for the shaft should be made.

I inform you that the distance from the point of the hole closest to the edge of the plate to the very edge should be NO LESS than the diameter of the hole itself. Mechanical engineering students will learn this truth no later than their second year at the institute. What do we see here? A thin isthmus reminiscent of a narrow PEREKOP, making a peninsula out of Crimea.

This is a priori the place that is weak in this design - it experiences the same loads as other knives, and the “dig” there is very thin. Where it is thin, there it is... I would like to hope, and quite sincerely, that over these three years this isthmus has not undergone loads comparable to the yield strength of this metal, but rather the alloy from which the perforated plate is stamped.

Preparatory moments

Before replacing the piston or rings (CPG in total), you need to get to the cylinder. For beginners who have no idea where this element is located, we will tell you. The muffler is just bolted to the cylinder. If you have no idea how to correctly install the piston on a 4t or 2t scooter, then first you need to remove the old CPG. The upcoming repairs can be divided into the following stages:

Removing the scooter trim (plastic);
Disconnecting electrical wires;
Disconnect the oil hose;
Engine dismantling;
Removing the old piston, rings (CPG in total);
Installation of new parts;
Engine installation, wire connections and hose;
Plastic fastener.

The plastic is folded to the side so as not to be crushed if careless. All bolts and cogs are placed in a pile and, if necessary, sorted separately

After making sure that all hoses with gasoline and oil are disconnected, remove the engine. It is necessary to understand that engine removal differs depending on the design features of the scooter model. Once the engine is removed, you can begin to remove the plastic casing, which protects the CPG from external factors. Then remove the cylinder head. It is secured with 4 bolts. In order not to break the thread, all bolts are unscrewed crosswise.

We remove the cylinder and immediately inspect it. If there is no damage, then it can continue to be used. While the piston most likely cannot be used back.

Usage

If the piston is powered by a red stone signal, its wooden head will extend, which will try to push out the blocks in front (if they are movable and there are no more than 12 of them). The extension lasts about one and a half redstone ticks (0.15 seconds) and is accompanied by a sound that can be heard at a distance of 15 blocks from the piston along any axis. At the same time, if there are entities on the way, then if there are no blocks on their way, they will also be moved (and if the block being moved is a block of mucus, then the entities will be discarded), otherwise the head or block will pass through them; in the case of a block, entities can be smothered by the block if it is solid.

When the piston is turned off, the head will extend back. Moreover, if it is a sticky piston, then the head will try to move the block “glued” to it with it. The sticking effect only occurs when the head is moved, so falling blocks will still fall after moving if there is free space underneath them; also, a block that was moved by a sticky piston can be moved by another piston without any complications. In addition, if the sticky piston loses power before

Before he manages to
out
, the piston “unsticks” from the block, which remains in its new place.
If such a piston did not push anything out and the power is still turned off prematurely, then the block that was destined to be pulled along with it will be moved as usual (though somewhat faster).

Installing a piston on a Chinese lawn mower

The piston head, when installed, points in the direction of the player who installed it.

How does it work?

In order to recognize breakdowns and correct them, it is important to understand how everything works in a normal situation. For simplicity, we will focus only on models with a gasoline engine. Previously, there were two-stroke walk-behind tractors, but at the moment they are increasingly being replaced by four-stroke analogues. Diesel devices are also gaining popularity. As for the box, it can be made in 3 different versions.

The usual approach. use gear transfer. Despite the decent level of reliability, this device takes up a lot of space. Energy transfer occurs using a cone or cylinder. Lightweight walk-behind tractors are mainly equipped with a worm gear. The typical operating principle of a walk-behind tractor controller contains

a device that keeps the number of revolutions under control;
a rod connecting this device to the throttle valve;
spring.

The control unit operates on the basis of a pneumatic or mechanical connection. “Pneumatic” means having a typical wing that matches the speed of air flow. Centrifugal options involve placing a special camshaft inside the crankcase. It is complemented by small weights and the barrel simply moves. The train is made of wire, and the sensitivity of the spring determines how accurately the speed will be maintained.

The role of the gas dispersion mechanism is to supply a mixture of fuel and air into the cylinder. But the same device also ensures the removal of exhaust gases. A decompressor is used to influence the compression ratio. Gasoline engines are certainly equipped with carburetors, which are responsible for producing a fuel-air mixture. Regardless of the type of fuel, the starting device plays an important role.