DIY poulan chainsaw repair

In detail: do-it-yourself poulan chainsaw repair from a real master for the site my.housecope.com.

The chainsaw is a worthy replacement for hand saws and axes. Today, this tool is available in almost every household - it is indispensable for setting up a personal plot, construction and repair work. Intensive use and improper care of the tool can lead to premature failure. However, the owner of the chainsaw does not have to go to the workshop right away - many of the faults that can happen to her during operation are quite realistic to eliminate on their own.

Correct diagnosis is essential for a successful repair. Therefore, in order to determine why the chainsaw failed and, most importantly, how to make it work again, you first need to know the features of its design.

It should be noted that it does not differ in particular complexity, since it includes:

engine (two-stroke gasoline);
functional part (saw bar and chain);
systems that ensure the joint operation of these two units (ignition, filtration, lubrication, etc.), that is, the tool as a whole.

In order to simplify the diagnosis of malfunctions, it is customary to distinguish them into two main categories:

engine malfunctions;
malfunctions of other parts of the chainsaw.

Most often, failures occur in the engine systems, however, the rest of the tool, due to intensive use or improper care, can fail at any time. How to determine exactly where the breakdown occurred? Simple logic will help us with this.

If the problem is in the engine, it will:

Video (click to play).

do not start;
deafen;
work unstable;
overheat;
smoke;
develop insufficient power.

As for all other malfunctions, as a rule, they manifest themselves with a normally operating motor.

If your chainsaw won't start, the first thing to do is to check for a mixture of fuel in the tank. By the way, it must be prepared in the proportions indicated by the engine manufacturer, otherwise the instrument will simply not start.

After verifying that the fuel mixture is correct and available, the ignition system should be checked. To do this, you need to inspect the spark plug.

Her condition can say a lot:

indicates that the fuel mixture does not enter the carburetor, which means that the problem is not in the ignition;

fuel-splattered candle

is the result of an overabundance of the fuel mixture, which lies either in a violation of the engine starting algorithm or in an incorrect carburetor adjustment;

this is a signal about the presence of low-quality oil in the engine lubrication system, incorrect carburetor settings, or an incorrectly prepared fuel mixture.

If the spark plug is splashed with fuel, wipe it thoroughly after removing it. The fuel supply system should also be cleaned. To do this, it overlaps, after which the starter is turned on. A carbonized candle must be carefully cleaned with an awl and emery.

When checking the spark plugs, you should pay attention to the distance between the electrodes (the normal gap is 0.5-0.65 mm), as well as the condition of the gasket and the presence of a spark. A damaged or worn gasket will have to be replaced, and the spark can be checked by putting on the ignition cable, connecting the cylinder and plug nut, and starting the starter.

If the discharge does not occur, the plug must be replaced. In the event that a spark does not appear with a new candle, then the problem is in the connection to the high-voltage wire or in it itself.

If the fuel mixture does not flow into the cylinder, but the spark plug is working properly, this may mean that:

Clogged fuel filter.

To clean this unit, remove the fuel hose and check the jet. If it is weak, the filter must be removed through the filler hole of the fuel tank and cleaned or replaced if completely worn out.

As a preventive measure, it is recommended to replace the fuel filter at least once every 3 months.

This is nothing more than a hole in the fuel tank cap, which is cleaned out with an awl.

The fuel mixture is not supplied or is supplied insufficiently.

There may be several reasons for this:

the air filter is clogged (in this case, it must be removed, rinsed with water, dried and replaced);
the carburetor settings are out of order (which means this unit needs to be re-adjusted);
the integrity of the carburetor membrane is broken (must be replaced);
the channels of the carburetor are clogged (it must be disassembled and all parts and assemblies must be cleaned).

If at low speeds the engine of the chainsaw works normally, but at high speeds it starts to stall and smoke, the problem may be hidden in the muffler.

To check the quality of its work, you should do:

dismantling (with the obligatory closing of the outlet);
disassembly (if the muffler is collapsible);
cleaning from carbon deposits using special detergents or dry method;
drying (using a hair dryer);
reassembly and assembly.

Dry cleaning without respiratory protection is not recommended. The carcinogens present in the soot will be released into the surrounding atmosphere in the form of dust, the inhalation of which is extremely hazardous to health.

To prevent clogging of the muffler during the operation of the chainsaw, you should carefully monitor the composition of the fuel mixture and the quality of its components.

If the chainsaw engine does not start or cannot develop normal power, it is likely that sufficient pressure does not build up in the engine cylinder for combustion of the fuel mixture. The reason for this may be the wear of the elements of the cylinder-piston group - the piston, rings, bearings, etc. In order to assess the condition of this unit, it should be visually inspected, having previously removed the muffler.

For a more complete diagnosis, a compression gauge is placed in the spark plug hole of the two-stroke engine of the chainsaw. It measures the compression in the engine. Based on the results of the check, one can judge the state of the CPG, however, the exact facts can only be obtained with a complete disassembly of the unit.

If the piston is chipped or scratched, it will obviously need to be replaced. The same applies to deformed or broken piston rings - for normal engine operation, they must be completely intact and free of carbon deposits.

A properly working carburetor guarantees maximum efficiency of the chainsaw, that is, it is possible to develop full power with the most economical consumption of the fuel mixture. The adjustment of this unit is usually carried out by the manufacturer, but its design provides for the possibility of adjustment already during operation.

The fact that such a setting will have to be performed by the owner of the chainsaw is evidenced by:

Strong vibrations or damage to the protective cover.
CPG wear.
Carburetor clogged.
Inability to start the engine or its spontaneous stops after starting.
Increase in fuel consumption and emissions while decreasing engine power.

Chainsaw carburetor adjustment is carried out in strict accordance with the manufacturer's instructions using three special screws, which are responsible for the maximum ("M") and minimum ("L") revolutions, as well as the idle speed of the engine ("T"). In order to exclude unwanted interference by an inexperienced user with the carburetor operation, some manufacturers install only one idle screw.

Carburetor adjustment is carried out in two stages:

Basic (carried out with the engine off).
Finishing (carried out with a running, pre-warmed engine).

For basic adjustment, screw in screws H and L as far as the stop and back out 1.5 turns. Final adjustments require the engine to warm up for 5-10 minutes at low revs.

The final calibration is performed by unscrewing the idle screw until the minimum engine speed is reached (in this case, its operation must be stable, and the chain must be stationary). If the engine stops at idle speed, the screw must be returned back, and if the saw chain is still in motion, continue turning counterclockwise.

Calibration check is performed by test:

Acceleration (with a smooth press on the accelerator, the engine should quickly pick up speed to the maximum indicator).
Maximum speed (if there is an ignition interruption, screw H should be slightly loosened).
Work at idle speed (the chain should not move, and the engine should pick up speed as quickly as possible).

If the owner of the chainsaw is not familiar with the carburetor device and does not have the tool necessary to calibrate it, contact a specialist. The carburetor is a very complex unit, so any wrong action can lead to irreversible consequences, for example, complete engine failure.

If the diagnostics showed that everything is in order with the engine and its systems, then the cause of the malfunction should be looked for in other units of the chainsaw. The most common problems are:

failure of the starter;
improper operation of the lubrication system;
incorrect operation of the chain brake;
saw chain wear, etc.

If the cause of the tool failure is not visible to the naked eye, as is the case with the engine, it is necessary to perform a thorough diagnosis of the faults and eliminate them in accordance with the manufacturer's recommendations and safety regulations.

Home »Poulan Chainsaw Carburetor DIY Adjustment

Installing a chainsaw carburetor. Or how not to pay repairmen!

Using a chainsaw makes life much easier even for an amateur, and in some professions this tool is almost indispensable. However, like any relatively complex device, a chainsaw requires periodic maintenance. Due to untimely or inadequate maintenance and due to the impact of both planned and excessive loads, various malfunctions can occur. For professionals, interruptions or erratic saw operation will reduce work efficiency or may result in a ruined work day. One of the most common malfunctions is the improper tuning of the chainsaw carburetor, which gets confused due to unsuccessful attempts to adjust or switch the adjusting screws for other reasons.

The following symptoms and malfunctions indicate the need for carburetor adjustment:

the engine starts with deformation and stops almost instantly;
gasoline consumption is too high, the exhaust is too thick, the combustible mixture in the cylinder does not completely burn out;
the factory settings of the chainsaw carburetor were knocked down (due to vibrations or unsuccessful attempts to adjust);
malfunction of the air purification system, which led to the ingress of debris particles into the fuel distribution mechanism;
significant wear of the piston group. carburetor setting in this case acts as a temporary measure.

It is understood that when dirt enters the fuel system with one set, the problem cannot be solved. flushing is required. In the event of a worn piston, a major overhaul is required. However, in all these cases, the carburetor is also tuned.

A carburetor is required to prepare the air / fuel mixture for engine power. If the proportions in this mixture are not correct, engine operation is interrupted.If proportions to an increase in the amount of fuel are not observed, the mixture is said to be oversaturated if the fuel, on the other hand, is unlikely. At work, the engine is neither the best way.

In different models of chainsaws, carburetors differ in design, but they are, in principle, similar to the action. The air flow moves at high speed through the air channel. A damper blocking the channel allows you to vary the speed of the air blast. The fuel is fed through the nozzle into the channel, where it mixes with the incoming air, forming a fuel-air mixture. The resulting mixture enters the engine.

The pressure in the float chamber, where the fuel is before mixing, is practically equal to atmospheric pressure. But the air duct creates a vacuum so that the fuel is drawn into the air stream. The more the flap is opened, the faster the air travels and the more fuel is added. the engine speed increases. Therefore, it is easy to imagine the principle of the carburetor.

Tuning is required for efficient, smooth tool operation for maximum productivity and at the same time economical fuel consumption. chainsaw carburetor... Fuel and air filters must be checked before tuning. they must be clean. Most chainsaws are adjustable with three screws: idle, high speed, low speed. When the carburettor is set correctly, the following symbols indicate:

The chain does not move when idling.
The engine accelerates smoothly and quickly.
The sound of the engine running is smooth, similar to that of a four-stroke engine.

One more saw adjustment.

If you decide to adjust it yourself, start with screw L, then go to jet H, and then set the idle rotation by turning screw T (or LA. If it is a quiet slot).

With smooth rotation of the screw L in both directions, a search is made for the position at which the idle speed will be maximum. After this point is found, it is necessary to unscrew the screw L by 1/4 turn. If the chain continues to move with the engine idling, the T (LA) screw is slowly loosened until the chain stops.

After adjusting the maximum speed of the screw H, the value of their frequency is checked on the tachometer. If the speed at maximum does not correspond to the values specified in the documentation, the adjustments are repeated. If the mixture turns out to be too rich at maximum rpm, too much smoke comes out of the muffler, squeals screeching with a bad mixture and the engine overheats. The adjustment is completed by setting the idle speed. the correct position is considered if the engine runs smoothly at minimum speed and the chain is on that. The idle speed setting can be seen in the video below.

Almost any Chinese chainsaw adjustments are the same as those of the brand's counterparts. There are the same L, H and T screws. Sometimes there are saws that only adjust at idle speed. However, according to the owners and service employees, not all chainsaws adjust the carburetor without problems. Even with experienced repairmen, some models can take a decent amount of time before you get an acceptable result.

The standard for Chinese carburetors is the L screw position, in which it is loosened half a turn from the fully clamped position. For screw H. one turn from the same state. In many videos, the L screw is called the quality control of the mixture, and the H. screw is called its quantity. Idle speed is adjusted in the same way as described above with a warm engine.

A chainsaw is a tool that many residents have in their workshop. The Poulan chainsaw is in great demand. This device is a good helper in the garden and in repair work, when creating joinery. The model is affordable, easy to operate. Over the decades of the product's existence, its shortcomings have been corrected, only good indicators have remained. American saws are often found among Russian owners and are of high quality and reliability in operation.

The Poulan chainsaw is manufactured in the USA using original technology. There are Chinese and European models in stores. The quality of the instrument depends on the country of origin.

The chainsaw is an American invention. Its features:

the design uses inexpensive but reliable materials with high quality;
the tool ensures the safety of work;
a well-assembled engine works reliably and for a long time;
with a low weight, the saw develops high power;
the device is lightweight and easy to use;
the tool is multifunctional.

Chainsaws are available in several types. They are slightly different from each other, but the basic principles of operation are similar for all models. The tank is filled with gasoline, lubricant is poured into the oil container. The power units work and force the chain with teeth to move. Let's consider some models.

This type of device is the most purchased in Russia. The unit is from the category of saws for household use. Power of 1.3 kW allows it to be used not only in everyday life. The structure of the product is typical for saws from many manufacturers. Chainsaw Poulan 2150 has a durable plastic body, two-stroke gasoline engine, carburetor, ignition system, starter and pump. The ignition system consists of a coil and a spark plug. The starter is used to start the device, the pump pumps fuel from the tank to the carburetor.

The machine cuts wood in natural conditions and indoors. You can use the saw for felling timber, creating blanks used in construction work, for sawing firewood.

The saw is equipped with two reservoirs: fuel and oil. Gasoline is poured into the first one to run the engine. In oil - lubricating oil for the chain. To operate the Poulan 2150 engine, a mixture of gasoline and oil in a ratio of 1/50 is prepared. The chain and bar are automatically lubricated. The model has some features:

high quality plastic housing is able to withstand impacts;
the side part is made of durable aluminum alloy;
handles are located in a convenient position for work;
the cylinder-piston group is covered with a protective layer;
vibrations are damped by a special system;
the oil pump for lubricating the chain is devoid of manual adjustment;
there is a primer for quick start in any conditions;
nylon filter is easy to maintain, easy to replace;
tire length - 40 cm, crankcase capacity - 0.2 l, fuel tank capacity - 0.35 l, product weight - 4.7 kg.

These are the main characteristics of the saw.

The Poulan 2250 chainsaw has many useful features. She showed herself well in the garden. It is not suitable for more complex work. Peculiarities:

the piston group is chrome-plated;
the chain is stopped by a special brake;
the cutting attachment is lubricated automatically;
there is a primer for starting the engine in the cold season;
tire length - 40 cm, engine power - 1.3 kW, crankcase volume - 210 ml, gas tank - 360 ml, total weight - 4.7 kg.

It remains to get acquainted with the less common models.

There are varieties that are not in demand in our country, for example Paulan 1950. This chainsaw is characterized by the following qualities:

has a good balance;
the saw headset is of high quality;
bar length - 40 cm, chain pitch - 3/8 ″;
the amount of oil for the chain is automatically adjusted depending on the load on the engine;
nylon filter and primer included.

The Poulan 2550 is the firm's most powerful saw. The engine has a volume of 40 cm³, the engine power is 2.4 liters. With. Designed for dumping and bucking dead wood up to 40 cm in diameter. You can prepare a forest for a construction site, construct log structures in the form of log cabins. The main advantage of the saw unit is the continuous operation of the engine without compromising quality.

Owners often face a problem: it is difficult to find instructions written in Russian. Let's compose it ourselves. Instructions for use of the Poulan chainsaw:

The saw is a tool that can be useful and harmful. It must be handled with care.
It is required to periodically clean the unit, adjust the main systems and replace consumables.
Use chains for Oregon 91VJ or 91VG models.
The tool has a comfortable grip and good balance.
Possesses high performance.
It is recommended to run the unit in without load before using it. To do this, you need to burn about 3 tanks of gasoline (about 1 liter).
A combination wrench must be used to assemble the tool.
Install the bar, slide the saw chain onto it and tighten with two nuts.
A-92 gasoline mixed with oil in a ratio of 50/1 is poured into the gas tank.
The place of work must be prepared: children and pets are removed.

The requirements of the management are binding.

Engine operation is based on a mixture of gasoline and oil. A rich or poor mixture affects traction negatively, reduces the resource of the unit. At the factory, the carburetor of the chainsaw is adjusted according to average values. When adjusting with your own hands, it should be remembered that the composition of the mixture can be changed by rotating the screw of the quantity and quality of the mixture.

For high-quality adjustment of the carburetor, you need to know well its structure and the purpose of each part. Only in this case, the setting can be done by hand.

If there is no knowledge, it is better to contact the service center, where specialists work and the necessary equipment is available.

On the carburetor, some of the adjusting elements cannot be unscrewed. They have special slots so that our screwdrivers do not fit.

In case of malfunctions, you can make repairs to the chainsaw with your own hands. This device has a high level of maintainability. Spare parts are sold in specialty stores and are easily replaced. The advantages of the Poulan range include:

affordable prices for spare parts;
economy in oil and fuel consumption;
easy access to all product systems;
the use of oil from European manufacturers.

The delivery set includes instructions with a list of recommendations, which include:

preparation of the saw for work;
system maintenance;
starting the engine in winter.

In the event of a malfunction, the culprit may be:

poor quality fuel and lubricants;
poor cleaning of the air filter;
debris or water droplets entering the carburetor;
faulty spark plug;
short circuit in the wiring;
excessive chain tension;
incorrect carburetor setting.

The saw's ignition system is electronic. It does not require care and maintenance. You just need to monitor the quality of the candle and wires.

Dmitry, Mozhga: “I work in the forest. I don't have a professional saw yet, I work at Poulan. The unit is good, convenient, easy to start. Even in the heat, it can work for a long time without stopping. "

Fedor, Kanash: “I have had a Poulan saw for about 5 years. I work with it a lot. The plastic is good, the parts of the internal systems are reliable. I am satisfied with the apparatus. "Alexander, Ufa: “I have been using the Poulan chainsaw for 4 years. Its advantages: ease of maintenance, good balance. Disadvantages: some wear of parts. But it does not exceed the wear and tear of other tools. "Evgeny, Ildibaevo: “I have been using Poulan 2150 for a long time. I work on orders, harvest timber. I use the saw often. The piston group flew recently. I could not find the details, I turned to the service. We put parts from another saw. Works great".The cost of Poulan products is about 5200 rubles. Some models are sold for 4,700 rubles. Professional tools cost 8,415 rubles. Prices in different regions of the country may differ.Repair of the POULAN chainsaw (aka Partner, aka Piran)on a homemade tool: Husqvarna Will not start after repair. Chinese chainsaw. Carburetor repair and adjustment. Carburetor diagnostics. HOW TO RIVET THE SAW CHAIN. Poulan / Partner chainsaw will not start. The Chinese brushcutter does not start, what can be. The best brushcutter knife \ To the village! Cool ideas for a chainsaw. Interesting accessories and attachments. Unusual use of a chainsaw. Sharpening the chain. The main mistakes when sharpening. PARTNER 351 chainsaw repair. When you press the gas, the chainsaw stalls. If the chainsaw or brushcutter STARTS BADLY) A little about jewelry repair of carburetors. How to save an electric saw after a neighbor, prevention of a plastic gear. how to adjust the carburetor on a chainsaw. Cleaning And Adjusting The Chainsaw Carburetor. Adjusting the carburetor of the brushcutter in practice.