Do-it-yourself chainsaw carburetor repair partner 350

In detail: do-it-yourself partner 350 chainsaw carburetor repair from a real master for the site my.housecope.com.

A chainsaw is needed in construction, and in gardening, and in landscaping - its presence greatly simplifies the implementation of a number of tasks for processing wood. The main unit of this tool is the engine, the operation of which largely depends on the state and settings of the carburetor. This is where the fuel mixture is prepared. This means that if the saw does not start, stalls or does not provide the required power, it is likely that the reason for this is improper operation of the carburetor. Fortunately, you can handle this yourself in many cases. Only for this you need to know and understand the device and principle of operation of this unit and, of course, the chainsaw itself.

The main purpose of the carburetor is to mix fuel with air in the required proportions. If the latter are violated, this is almost instantly reflected in the operation of the engine.

Stihl MS 181 C BE chainsaw carburetor

Chainsaw carburetors may vary in design. However, their basic elements and the principle of operation remain approximately the same.

Carburetor device:

This is a wind tunnel, across which the air damper is located - with its help the intensity of the air supply is regulated.

This part is located where the base tube is narrowed - here the air flow rate increases, i.e. air is always supplied to the carburetor under some pressure.

In this area, the fuel comes into contact with the air stream. Fuel enters the atomizer from the float chamber through the nozzle (metering device).

Float chamber

This is a container that allows you to keep the fuel mixture in a stable state.

Video (click to play).

Structural diagram of a chainsaw carburetor

The chainsaw carburetor works according to the following principle:

when the engine is started, the main flap opens and a stream of air is supplied into the air channel at a certain speed;
the air flow rate, as well as the level of the float in the chamber, are regulated by the position of the damper, namely, due to the difference in pressure in the float chamber and the air channel;
the fuel from the float chamber is sucked into the nozzle, and from there into the diffuser;
passing through the diffuser, the air captures the fuel entering there;
the resulting mixture is fed into the cylinder chambers through the inlet channels.

The principle of operation of the chainsaw carburetor

The pressure in the float chamber is approximately equal to atmospheric, but in the air channels of the carburetor, when the engine of the chainsaw is started, a vacuum occurs. Opening the damper increases the air flow rate. As a result, more fuel flows into the carburetor, and the number of revolutions of the engine shaft increases.

In the first hours of operation, the 2-stroke engine of the chainsaw requires running-in, on which the quality of its further work depends. During the running-in process, the primary adjustment of the carburetor is performed - the optimal parameters for the preparation and supply of the fuel mixture are set.

Chainsaw initial break-in: working with thin material

Most modern chainsaws are sold adjusted. Nevertheless, the quality of the factory settings does not interfere with checking - in the end, you will have to work with the instrument.

The first time you start the chainsaw, it must be gentle. Therefore, for several hours after the start, it is recommended not to overload the engine and only cut small branches and trunks up to 10 cm thick.

To insure against malfunctions in the carburetor of the chainsaw, simple rules will help:

Always mix gasoline and oil in accordance with the manufacturer's numbers. The proportions of the fuel mixture for the chainsaw engine
Do not prepare the fuel mixture in advance - the properties of gasoline and oil when mixed will lose over time. An exception is fuel for an intensively used tool, however, here, one should not exceed the approximately weekly rate.
Use the oil specified for your chainsaw engine. A fuel mixture with a non-standard composition will disable it seriously and for a long time.
When preparing the fuel mixture, take into account the influence of climatic conditions on its components.

The chainsaw must start correctly, provide a stable sprocket speed and smooth power increase / decrease. When the engine is running, there should be no extraneous knocks, pops and noises.

Professional hand-held chainsaw at work

The main thing during the initial running-in of the tool is to ensure that the fuel consumption corresponds to the power used, i.e. in practice, the saw should not go out, "sneeze", smoke and work in jerks.

Typical carburetor malfunctions are easy to recognize. They are expressed in the fact that the engine of the chainsaw starts up and immediately stalls or does not show signs of life at all. Well, or it consumes fuel with might and main, producing clouds of black smoke and aggressive vibrations instead of the required power.

Chainsaw carburetor operation diagram

Carburetor settings can be affected by:

lack of fixing the adjusting screws; Chainsaw adjusting screws
wear of the piston group; New CPG chainsaw Husqvarna 365
blockage of the fuel-air channels;
damage to air filters; Chainsaw air filter with nylon insert

If any problems are found, they should be rectified immediately. But how do you know if the carburetor is the problem? To do this, watch how your tool works.

Typical signs that carburetor settings are out of order include:

Unstable motor operation

As a rule, the reason for this is the use of an incorrect (lean) fuel mixture.

Excessive consumption of fuel

It is expressed in an increased emission of waste exhaust, which turns black. This means that the fuel is not completely consumed, i.e. the mixture is oversaturated.

Carburetor set correctly - saw starts the first time

Arbitrary changes in engine power

May be associated with damage to the fastening of the adjusting screws or the protective cap.

Increased fuel consumption accompanied by vibrations and pops

It speaks of critical wear of the piston group, therefore, adjusting the carburetor will postpone the overhaul only for a while.

"Sneezing" and engine jerking

This picture is observed when the carburetor channels are clogged or its filters are malfunctioning. In this case, adjustments should only be made after thorough flushing of the assembly.

Chainsaw fuel filter

Despite the fact that the carburetor is the most difficult part of the engine, you should not be upset if it detects malfunctions in its operation. Instead, you need to arm yourself with some tool, a knot design, and some healthy logic.

Chainsaw carburetor being repaired

First of all, you need to prepare a place for disassembly. This can be a workbench or a regular table. In addition, you need a rectangular piece of cloth or cardboard - on it you will neatly fold the carburetor parts. And, finally, a tool: for disassembly, you will need a set of open-end wrenches and screwdrivers, a special cleaning compound and an ultrasonic cavitation bath.

Chainsaw carburetor repair tool

First, you have to dismantle the chainsaw carburetor. This is done in this order:

To get to the carburetor, you need to remove the top cover of the chainsaw, which is fixed with three bolts. Removing the carburetor cover
After removing the cover, do not forget to remove the gasket, which is an integral part of the air filter, and the body of the latter, for which you need to unscrew the corresponding nuts and / or remove it from the clips.
On the right side of the carburetor there is a fuel hose, it must be removed together with the air damper drive rod, not forgetting to pull it off the fitting on the left. Removing the fuel hose and drive rod
After removing the hose and rod, remove the throttle cable tip from the fixing socket and finally dismantle the gasoline hose. Removing the throttle cable
The carburetor can then be removed from the mountings for later disassembly. After removing the gasoline hose, the carburetor is ready for disassembly.

Disassembly of the carburetor must be carried out in the manner prescribed by the design and functional solutions of its elements. Chainsaw carburetor parts do not differ in size, so they need to be folded carefully and in order, trying not to lose anything.

After disassembly, it is necessary to carry out troubleshooting and replace damaged or worn parts. Next, the entire set should be rinsed with a special product, dried and wiped with a dry, lint-free cloth. The jets and tubes of the assembly must be blown out with compressed air, or, in order to more thoroughly remove the formations on their inner surfaces, they must be treated with ultrasound before that.

Reassembly of the carburetor is carried out only after complete cleaning, drying and blowing with compressed air. At the same time, do not forget that some gaskets and seals, even if they are not damaged, must be replaced.

You can start adjusting the carburetor provided it is correctly troubleshooting, high-quality assembly and flawless re-installation on the engine.

Carburetor setting principles:

screws H and L adjust the ratio of air and combustible mixture, i.e. throttle position. Tightening the screws clockwise leads to a depletion of the mixture and the transition of the engine to low revs. When unscrewing (counterclockwise), the mixture is enriched, and the engine speed increases;
screw T is responsible for adjusting the idle speed: turning it clockwise gives an increase in their number, against - a decrease;
screws are adjusted in L-H-T order. Chainsaw Carburetor Calibration

The general adjustment algorithm looks like this:

Initially, the highest idle speed is found by turning the screw L and then returning it by ¼ turn counterclockwise. If the chain rotates at idle speed, turn the screw T in the same direction until it comes to a complete stop.
With the engine warm, running at full speed, turn the screw H by ¼ of a turn to the left, then let the engine run for 10 s to check the maximum speed using a tachometer. It must correspond to the number indicated in the instrument's passport.
After the calibration with screws L and H, the idle speed is adjusted with screw T. If done correctly, the engine will run evenly in all positions. Memo for calibrating the carburetor on the body of the chainsaw

Upon completion of the adjustment, it remains to reinstall the cover of the chainsaw with an insulating gasket, after which you can start the main work. If the settings are correct, the chainsaw engine will get the optimal fuel mixture. This will ensure its normal efficiency, as well as the overall comfort and safety of working with the tool.

Among the huge selection of models on the modern construction market, the Partner 350 chainsaw stands out, which is produced by a subsidiary of Husqvarna.

General view of the Partner 350 chainsaw

Simple and easy to use, reliable and unpretentious, this saw has gained wide popularity among summer residents and owners of country houses. Sawing firewood, pruning trees and branches - this is not the whole list of works that this model will cope with without problems.Despite the well-thought-out design and layout of the units, over time, wear of the power unit, transmission elements and fuel system occurs.

Experienced fellers know that a competent and accurate determination of the nature of a breakdown is half of the repair work done. Based on many years of experience in repairing the partner 350 chainsaw, specialists have developed a special method for diagnosing problems.

Major chainsaw breakdowns Partner 350

It should start from the simplest nodes and mechanisms, ending with more complex ones.

This allows you to significantly save time and avoid unnecessary operations. Troubleshooting is recommended in the following order:

Chainsaw spark check;
Ignition coil;
Diagnostics of the fuel supply system;
Inspection of the crankshaft bearings.

To diagnose the presence of a spark, it is necessary to remove the candle and, without removing the high-voltage cable, make several jerks with the starter. If there is a discharge, you will need to set the gap between the central and side electrodes. Its value in Partner 350 should not protrude beyond 0.7 to 1.2 mm.

Adjusting the spark plug gap with a feeler gauge

Failure to reach this distance can lead to incomplete combustion of the fuel mixture and, as a consequence, increased fuel consumption with limited power of the unit. As a result of exceeding this parameter, there is an inconsistency in the occurrence of a spark and interruptions in the operation of the internal combustion engine.

If there is no spark on the electrodes, it is necessary to replace the spark plug and repeat the diagnostic manipulation described above.

If no discharge is observed on the replacement spark plug, it is necessary to check the integrity of the high-voltage wire and, if necessary, replace it.

The absence of a bright blue spark in the plug may indicate the need to inspect the ignition module and adjust the gap. For these purposes, we remove the plastic protective cover from the saw and check the condition of the coil. The wires leading to it must be firmly fixed with screws; they must not dangle at the connection point. Moisture must not be present on the flywheel of the drive shaft as it interferes with the generation of an electromagnetic field.

Flywheel and ignition module of the Partner 350 chainsaw

In the absence of such inconsistencies, you must make sure that the clearance between the module and the flywheel is correct. Its value should be no more and no less than 0.2 mm, and therefore, if it does not coincide with the recommended distance, you need to independently adjust the ignition of the Partner 350 chainsaw.

For the most accurate adjustment, you need a regular coin-shaped or flat probe, which you can buy in specialized or automotive stores.

After checking the ignition, proceed to the diagnosis of the fuel supply system.

An important influence on the correct operation of the saw is played by the fuel system, which consists of a gas tank, pipes and a carburetor.

Carburetor Partner 350 disassembled

If the mixture does not flow from the tank, it is necessary to inspect the built-in filter and breather (hole in the lid). If the fuel filter becomes clogged, it will need to be replaced. To clean the breather, you can use an ordinary sharp needle, carefully removing the remnants of dirt and sawdust from the valve. If the carburetor becomes clogged, it will need to be dismantled and thoroughly cleaned.

It must be remembered that the partner chainsaw carburetor is a complex assembly consisting of many small parts. Therefore, when dismantling, cleaning and assembling, maximum attention is required.

The carburetor is used to mix the fuel mixture (oil and gasoline) with air. Its work begins with the jerk of the saw starter, which forces the membrane to pump fuel. After that, a diaphragm-controlled needle valve supplies gasoline to the main chamber, through which it enters the cylinder. The throttle valve can be used to "enrich" or "lean" the fuel mixture with air. When it is closed, less air will flow into the cylinder at the same fuel level.In this case, consumption will increase, coupled with a decrease in engine power. Therefore, the adjustment of the Partner 350 chainsaw plays an important role in creating an optimal balance of moderate fuel consumption with high tool performance.

It is recommended to make self-tuning only if you have special tools and skills.

Before starting adjustment work, it is necessary to clean the main fuel unit from dust and dirt. To do this, you can use a compressor with compressed air or a broom brush.

To adjust the carburetor, holes are provided on the left side of the power unit, however, for the convenience of determining their position, experts recommend dismantling the protective plastic casing. First, turn the screws of the fuel quantity and quality fully clockwise until they stop, loosening them after 1/5 ... ¼ turn.

Partner 350 chainsaw carburetor with adjustment screws

When the cover is removed, you need to know that the screw for the quality of the fuel mixture is on the right and, accordingly, the screw for adjusting the amount of gasoline is on the left. For convenience, the carburetor body is marked under the bolts:

- "L" - screw for the amount of fuel (adjustment at low speed);

- "H" - screw of the amount of the mixture (setting at maximum speed);

- "T" - idle speed adjustment bolt.

It must be remembered that the adjustment of the carburetor of the Partner 350 chainsaw must be carried out on a warm engine. At high temperatures, the metal expands linearly, as a result of which the throughput of the channels increases.

As soon as the cylinder becomes warm, turn the screw "L" until the internal combustion engine produces the maximum crankshaft speed. Then we twist it a quarter of a turn. It is worth noting that in this position, the screw for the amount of supply of the mixture should support the operation of the motor at idle. If such a setting is not enough, then boldly unscrew the “T” bolt until the engine runs stable. Using the screw "H" we correct the work of the Partner chainsaw at maximum speed.

An important factor in the correct operation of the engine is played by the bearings and oil seals of the crankshaft. Image - DIY partner 350 chainsaw carburetor repair

Crankshaft Partner 350 with bearings

To diagnose their wear, it is necessary to stagger the flywheel mounted on the shaft in the vertical and horizontal plane. If there is a clear play, the rolling bearings must be replaced. If there are oily traces on the crankcase, then the oil seals will also need to be replaced. It will not be superfluous to check the play of the Partner 350 crankshaft, for which we remove the cylinder and piston. With the help of our hands, we swing it to the left and right, thereby imitating the natural movement.

Despite some difficulties in repairing a Partner 350 chainsaw with their own hands, the owners of these units, before handing over the tool to specialized centers, try to restore their operability on their own. After all, most problems can be eliminated with ordinary locksmith tools and with basic experience in the repair of mechanical components.

Chainsaw problems can occur due to improper adjustment of the carburetor. This procedure must be performed regularly. This will help extend the life of the tool. The partner can do the adjustment of the chainsaw carburetor with his own hands, but first it is recommended to study the device and how to eliminate the main faults.

Correct adjustment is possible only if the structure of the chainsaw carburetor has been studied in advance and the quality of this part has been checked. For example, for Partner p350s, the carburetor manufacturer is Walbro. The quality indicator in this case is the WT-891 marking.

Knowing this information is essential to ordering spare parts.

The carburetor of the Partner 371 chainsaw or any other model has a classic structure. The main elements are:

fuel pump;
main chamber with membrane;
throttle and air dampers;
screws (quality, quantity and idle adjustments).

In addition to these parts, there are technological channels in the carburetor through which the mixture of gasoline and oil moves.

The principle of operation is as follows. A pulse is sent from the crankcase to the fuel pump. The work of the carburetor begins with it. After receiving a pulse, the fuel mixture is directed to the main chamber, entering there through a needle valve, which is controlled by a diaphragm. From the main chamber, through the technological channels, the liquid is directed into the cylinder, while the amount of liquid can be independently adjusted using the throttle valve.

Additionally, it is possible to regulate the throughput of the technological channels. For this purpose it is necessary to use screws of quality and quantity, which work on the principle of gate valves.

The following types of malfunctions are typical for the Partner chainsaw:

engine malfunctions, such as problems with ignition, fuel supply, or exhaust and piston-cylinder systems;
failure of carburetor components such as clutch assembly, chain brake or lubrication system.

The causes of failures can be different, but most often it is improper operation, insufficient oil or poor-quality fuel mixture.

Correction of malfunctions of the chainsaw carburetor is possible only after this part has been removed. And for this you need to disassemble the chainsaw directly. This work will have to be done in the following sequence:

Remove all components in strict order. First, the chain brake cover and saw attachment, then the top cover, saw handle and starter.
After these parts have been removed, it is necessary to clean the saw using a compressor with an accessory.
After that, you need to plug the inlet window, since there is a risk of dirt and foreign objects getting inside.

The carburetor can be cleaned in different ways, most often with air. The sequence of work is as follows:

Remove the upper bolt of the part cover.
Remove the valve gasket. After that, you need to blow the mesh with compressed air. In this case, it is necessary to blow not close, but at a short distance.
No other carburetor parts need to be removed. A special liquid can be used to clean the surface.
Now the carburetor needs to be assembled, fastening the parts in the reverse order.

For efficient operation of the Partner chainsaw, other repair work may be required. It is not difficult to carry out repairs with your own hands.

The most common problem is the lack of:

sparks in the candle (you either need to clean the gap on the candle, or replace the coil or flywheel with similar parts);
fuel supply (the cause may be a clogged hose or fuel filter);
air supply (requires flushing the air filter).

Setting up a chainsaw carburetor A partner with your own hands requires the preparation of the following tools:

tachometer (electronic counter of the crankshaft speed);
slotted screwdriver;
a set of filters (replacing them is part of the adjustment process).

It is possible to adjust the carburetor on a Partner 352 chainsaw or another model only if you first clean it from dirt. The best way to do this is to use an air-cushion compressor. The adjustment itself is performed in several stages:

The cover must be removed to access the adjusting screws. They can also be accessed through special holes on the left side of the carburetor. It should be remembered that the screw on the left is the quality screw (marking H), and the right screw is the quantity (marking L).

After that, the screws must be fully tightened and then loosened by ⅕ turn.

Then the chainsaw needs to be started, since the carburetor can only be adjusted with a hot engine.

After that, the amount adjusting screw must be tightened clockwise to the maximum engine speed.Upon achieving this result, the screw must be unscrewed counterclockwise by ¼ turn. After that, the chainsaw should idle. If the revolutions are too low or too many, then the throttle valve is used.

Now, using the quality screw, the maximum speed is set. This parameter is determined by a tachometer. The maximum possible value is easy to see in the instructions. For example, for the Partner 350 chainsaw, this value is 12,500 rpm

If there is no tachometer, then the quality of the adjustment can be determined visually. If the tool emits a lot during operation, then the amount screw must be slightly tightened. Another option is also possible. A chainsaw can work well at idle, but poorly at maximum. The situation can be corrected by tightening the quality screw, while the gas must be kept completely clamped. Image - DIY partner 350 chainsaw carburetor repair

For people engaged in construction or logging, as well as living in their own living quarters with an adjacent plot of land, it will be very useful to own a quality Swedish chainsaw "Partner 350", which is an excellent substitute for other tools for cutting wood, for example, two-handed saws or hacksaws ...

Like any other units, chainsaws also require careful maintenance and periodic maintenanceotherwise they will quickly break down as a result of exploitation. At the same time, contacting qualified specialists with a request to fix a chainsaw costs money, which you may not want to spend for any reason, because you understand that you can fix most of the faults and breakdowns yourself. To do this, you need to understand the structure of the chainsaw and watch a video where you will receive detailed instructions for repairing the Partner 350 chainsaw.

The vast majority of product malfunctions occur due to engine problems and related systems. Usually, to repair the unit, it should be disassembled. In order not to make a mistake during the disassembly process, read more about the design of the chainsaw in the video or operating instructions.

When your chainsaw won't start, you should first see if are the candles in good working order, giving a spark, due to which the fuel ignites and by force of an impulse pushes the piston, which does useful work.

In order to assess the condition of the candle, you need to remove the wire going to it from the starter and unscrew it with a suitable key from the groove. Examine the candle: its appearance will tell you what happened to the chainsaw:

The consequence of such malfunctions is the inability of the fuel to penetrate into the cylinder and begin to carry out useful work on the rotation of the chain, therefore the chainsaw will not start... The reasons for this are as follows:

The fuel filter is out of order because it is clogged.
The breather is clogged (this is the name of the hole made by the manufacturer in the gas tank and designed for air to enter the tank through it).
Lack of fuel in the gas tank.
The diaphragm in the carburetor is not complete, or there is a high probability of blockage in the carburetor passages.
Carburetor adjustment is not correct.

To determine if the breather or filter is clogged with foreign objects, you will need to disconnect from the mountings fuel hose and see if gasoline flows from it and with what pressure. If gasoline comes out slowly and weakly, clean the breather with a thin, sharp object, such as an awl. If the problem is with the filter, remove it from the fuel tank and clean it, and replace if necessary.

Did you find that the carburetor is the root cause of your problems? The good news here is that if your carburetor filter gets clogged, you can easily clean it yourself.In addition, you can easily do the adjustment and tuning of the carburetor of the Partner 350 chainsaw with your own hands, if you strictly adhere to the recommendations from the instruction manual.

The bad news is that with other, more complex carburetor repairs, you are unlikely to cope with your own hands, and you will have to take your unit to the mechanics. Sometimes the manufacturer deliberately does not write in the instructions, how to tune and repair a carburetorso that people who do not understand the device of the product do not try to fix the malfunction on their own if the chainsaw suddenly stops starting and, as a result, does not completely break the unit.

To the main breakdowns of this system chainsaws include:

Low pressure detected by the cylinder compression gauge, which causes the motor to lose power and cannot rotate the chain at the speed necessary to cut wood efficiently. The pressure at which the engine runs smoothly is approximately nine atmospheres.
Loss of tightness of the rings in the pistons, due to which hot gases from the cylinders enter the crankcase. The malfunction is eliminated by replacing the rings.
Problems with the tightness of the gaskets located in the cylinder head (cylinder head). Visually expressed in the form of emissions of gasoline combustion products through the slots in the gasket and the pressure drop in the engine. The problem is solved by replacing the gaskets.

If you want to know if there are problems in the cylinders, then the easiest way to do it is remove the muffler and assess the situation, looking through the hole left over from the removed muffler at the insides of the cylinders. In the event of the need for repairs, of course, you will need to remove the cylinder head for open access to the pistons and cylinders.

Sometimes, having accelerated your chainsaw to high engine rpm, you are surprised to find that the engine cannot cope with them, and your tool stalls. At the same time, smoke begins to pour out of the muffler. However, the motor runs easily at low revs.

In this case, there is a high probability that the muffler of your unit clogged with carbon and other products of incomplete combustion of fuel, therefore it must be cleaned. This work is done as follows: you will need to remove the muffler from the chainsaw and disassemble it; then clean its outer and inner surfaces from carbon deposits; in the last step, dry with a hair dryer and place on the chainsaw.

Please note that it is recommended to cover the muffler opening with a plug or rag to avoid clogging of the cylinders with debris.

Construction and renovation activities often require the use of a chainsaw. The partner 350 chainsaw carburetor can be adjusted independently with certain knowledge. The need to implement this process rarely arises. It often appears when the engine is worn out, errors in the flow of fuel. It is possible to understand that adjustment is required if, during operation, the motor starts to stall for no reason, extraneous noises appear. Image - DIY partner 350 chainsaw carburetor repair

Malfunctions are associated with the accumulation of a large amount of oxygen or the presence of insufficient fuel.
Interruptions in operation are noted if there is an increased fuel consumption, leading to a large emission of exhaust gases, which oversaturated the fuel mixture.
An unexpected malfunction often occurs when there are mechanical breakdowns. So, in the presence of strong vibrations, a similar problem may arise, the protective cap is damaged. Vibration loosens the fastened bolts.
Wear on the piston area of the motor. This problem can be eliminated only by replacing the damaged element. Then you need to configure the node.
Interruptions in the operation of the partner 350 carburetor may occur when using low quality fuel. This problem causes the filter to be damaged. To eliminate this situation, it is necessary to disassemble, flush the working units.

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It is important to run the factory device in a timely manner and set it up in time before starting the working process.

The main components of a carburetor are:

Main part. It is a special tube designed to allow air to pass through. There is a damper with the ability to change the location.
Diffuser. This is the narrow area of the tube. It is necessary to accelerate the flow of air-type mass.
Fuel supply channel. The fuel is stored in a float chamber. From there, it goes into the nozzle and then into the atomizer.
Camera. It is similar in shape to a container. Maintains the required amount of fuel.

To set up and repair the saw, we need tools - screws L, H, T, diagram.

Competent tuning of the partner 350 chainsaw carburetor will eliminate the occurrence of the above problems. This work begins with disassembly. Adjusting the carburetor of the partner 350 chainsaw requires knowledge of the information on the design of the working unit.

When disassembling the elements for repairing the saw carburetor, the partner is useful to use the following recommendations:

When shooting elements of a Husqvarna saw with your own hands, you must act as carefully as possible. You need to remove each element. It is advisable to lay out the parts in the sequence in which they are removed. This will help make the reassembly process as fast as possible. The unit can be disassembled quickly.

The top cover is held in place with three bolts. You will need to carefully disassemble them. There is a foam layer under the removed cover. It performs the air filter option.

You will need to remove the filter rod in the saw. To do this, dismantle the gasoline hose.

To adjust the carburetor of the chainsaw partner 350, you need to remove the tip that is on the cable. To do this, carefully remove the fuel hose and disconnect the carburetor. Take it off slowly.

After completing all the above steps, you can start adjusting the carburetor of the partner 350 chainsaw. Please note that this type of operation is considered quite time consuming. You will need to configure it in stages. The individual elements are small in size. It is important not to lose them during disassembly, to set them up.

↑Saw partner 350, when adjusting the carburetor correctly, is able to function properly and reliably. At the basic stage of adjustment, it is necessary to tighten the adjusting screws to the maximum. These screws have a special designation - "L" and "H". They are wrapped slowly up to the required stop. The operation is performed in a clockwise direction. Then, the screws will need to be unscrewed in the reverse order one and a half times. Image - DIY partner 350 chainsaw carburetor repair