Adjusting the carburetor of the Partner 340s chainsaw

Chainsaw Partner 350 Starts and stalls. Similar posts

Why does the chainsaw stall when you press the gas?

Hello! If you find yourself on this page, then, most likely, your chainsaw stalls when you press the gas, and you want to find out why this is happening and what to do about it. That all the same, I will try to help you in this dilemma by examining the more widespread prerequisites for such a hassle, as well as ways to eliminate them.

To begin with, I’ll immediately write for novice users that many chainsaws before work asks to warm up the engine at idle speed for about one minute. Why the chainsaw starts and stalls. the reasons and. Here the chainsaw stalled and does not start, or the Stihl chainsaw stalls. While the engine is cold, the saw may stall when gas is added.

So, if a heated chainsaw can idle, but stalls under load, then this means that:

  • the carburetor is incorrectly configured or clogged. the most common case;
  • it does not have enough air, the consumption of which increases sharply with increasing revolutions. this means that the air filter is dirty (a rare case, because the filter is contaminated evenly, so the user first notices a loss of power);
  • it does not have enough fuel, the consumption of which also increases with increasing speed. this means that the fuel filter is dirty (also an infrequent case);
  • Well, and the worst case, if there is excessive friction between the piston and the cylinder wall, associated with a lack of oil in the fuel consistency. after this operation of the chainsaw, you will most likely fly into the repair of the piston group, because scuffs form on the piston and cylinder walls that prevent saw operation.

Let’s analyze these cases separately.

  • Chainsaw Partner 350 repair manual. Chainsaw Partner 350: malfunctions and their elimination
  • Adjusting the carburetor of the Partner 340s chainsaw. DIY Partner 350 chainsaw carburetor
  • How to change the throttle cable on a Partner Chainsaw. Repair of the Partner P351XT chainsaw. 1 series. Disassembly
  • Video Repair of the PARTNER 350 chainsaw “Part 1”
  • Chainsaw Partner 350 Starts and stalls. Similar posts
  • Partner 350 Chainsaw Will Not Start. How the mechanism works
  • Read the same
  • Assembling the chainsaw Partner 350. Characteristics of the chainsaw Partner 350

How to change the throttle cable on a Partner Chainsaw. Repair of the Partner P351XT chainsaw. 1 series. Disassembly

If the saw does not start, then:

  • there is no spark on the candle;
  • there is no fuel;
  • no air comes.

First, check for a spark: unscrew the spark plug, attach it to the high voltage wire and put it on the cylinder, pull the starter. If spark is present, clean and adjust spark plug gap (0.5-0.65mm). If this is not the case, you need to change: either the flywheel or the coil (magneto). In addition, the spark plug itself or the high-voltage wire may break.

The next step is to check the fuel supply. To do this, disconnect the supply hose from the carburetor and check if it is present. Absence may mean that the fuel filter or supply system is clogged. And the carburetor can also be clogged.

If you have no experience in repair and cleaning, entrust this work to specialists.

If the air supply deteriorates, the saw should start, but it will not work properly. Remove and wash the air filter. Put it back in place only after it is completely dry.

If the saw works well, it works at idle and stalls when gas is applied. The muffler is probably blocked. Takeoff, dismantling, washing, installation and operation.

Easily with your hands, you can also change the saw bar and chain, carburetor, starter, oil pump, ignition and clutch.

Chainsaw Partner 350 repair manual. Chainsaw Partner 350: malfunctions and their elimination

If the saw does not start, then:

  • there is no spark on the candle;
  • no fuel is supplied;
  • no air coming in.

First, check for the presence of a spark: by unscrewing the spark plug, connecting it to the high-voltage wire and placing it on the cylinder, pull the starter. If there is a spark, then clean and adjust the spark plug gap (0.5. 0.65 mm). If it is not there, then you need to change: either the flywheel or the coil (magneto). In addition, the candle itself may fail or the high-voltage wire may break.

The next step is to check the fuel supply. To do this, disconnect the feed hose from the carburetor and check for its presence. Absence may mean that the fuel filter or supply system is clogged. And the carburetor itself may become clogged.

If you have no experience in repairing and cleaning it, entrust this work to specialists.

If the air supply deteriorates, the saw should start, but it will not work well. Remove and wash the air filter. Put it back in place only after it is completely dry.

If the saw starts well, runs at idle speed and stalls when gas is applied, the muffler is most likely clogged. Take off, disassemble, wash, put back and work on.

Easily do it yourself, you can also change the bar and chain, carburetor, starter, oil pump, ignition and clutch.

And you will be quite capable of replacing the torn starter cable after watching this video:

We recommend that you entrust more complex chainsaw repairs related to replacing the cylinder-piston group or crankshaft with specialists, although if you are familiar with two-stroke engines, then this work will not be difficult for you, and spare parts for Partner chainsaws are not in short supply in Russia.

To enlarge a picture, click on its thumbnail.

We advise you to regularly monitor the health of the safety group: brake and chain catcher. Remember that the saw must be thoroughly cleaned of small chips. It can not only clog the technological holes in the oil pump and other places, but also interfere with the operation of the brake.

Operating instructions for Partnerа 350

In this manual, you will find not only a detailed description of the saw, but also the basic techniques of working with the tool. We would like to draw your attention to the fact that this chainsaw can operate on AI95 or AI92 gasoline with the addition of oil for two-stroke engines in a ratio of 1:50.

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You will need a pressure gauge to check the tightness. The meter inlet is fitted onto the fuel supply hose. Then, with the help of a pear, a certain amount of air is pumped into the carburetor. The readings of the device must correspond to at least 0.4 bar. After a while, the pressure is measured again. If it falls, the carburetor needs repair. This may be due to the following reasons:

adjusting, carburetor, partner, 340s, chainsaw
  • malfunction of the control diaphragm (in the main chamber) or the diaphragm of the fuel pump. The tightness here is broken due to the loss of the shape of the membranes or the appearance of holes on them. This problem occurs due to prolonged operation or overheating of the carburetor;
  • the needle does not completely close the valve because poor quality fuel contributes to its clogging. In addition, the taper geometry of the needle changes over time due to wear. To this we add the insufficient mobility of the needle valve lever on its axis when it is worn out or bent. And its spring has lost its elasticity.
  • the plane of the petal valves in the fuel pump is broken. As a result, they are badly pressed against the reference plane and, as a result, the tightness of the carburetor is broken (the pump loses performance).

A membrane chamber cover is installed on the side of the carburetor of the Partner 340 chainsaw. Through the hole in it, dirt gets into the carburetor. When it accumulates, the diaphragm rises and presses the needle valve lever. As a result, the lever does not completely block the fuel channel, which leads to an over-enrichment of the mixture.

It is necessary to often remove and clean this cover from accumulated dirt. Fortunately, its design allows you to do this easily and quickly (you need to unscrew the four screws on the side of the carburetor).

READ  How To Mix Gasoline With Chainsaw Oil

All of the above malfunctions, as a rule, have 2 main reasons: engine overheating (lean mixture) and carburetor clogging (insufficient fuel cleaning). Both problems are solved by proper tuning and timely cleaning of the carburetor and air filter. Do not forget about a high-quality filter element for gasoline.

When cleaning, special attention should be paid to the mesh, the slightest clogging of it leads to unstable operation of the chainsaw.

Failed parts can be replaced by purchasing the appropriate repair kit.

Partner 340s chainsaw carburetor. from device to adjustment

Chainsaws Partner 340c (Partner 340s) are equipped with fairly reliable carburetors that hardly break and do not require periodic maintenance. But, during operation, sometimes there is a need to adjust it. This is where the knowledge described in this article will be required. from the device, to the step-by-step adjustment of the carburetor with your own hands.

What carburetor is used on the Partner 340 chainsaw

The Partner 340s chainsaw is equipped with a membrane carburetor from the Japanese company Walbro. It is quite reliable and unpretentious in operation. To facilitate winter start-up, a primer is installed in the carburetor (fuel pump).

Adjusting the carburetor of the Partner 340 chainsaw with your own hands

Initially, the carburetor on the Partner 340 chainsaw was adjusted by the manufacturer to operate at maximum power and economy. Additional adjustment may be necessary when traction performance deteriorates, which is possible with sudden changes in air temperature or when filling the tank with another fuel.

Before adjusting, it is necessary to clean the chainsaw carburetor from dust and dirt (it is better to use a compressor with an air nozzle for this purpose).

The carburetor adjustment algorithm itself is performed as follows:

  • For access to the screws of quality (marking H) and quantity (L) on the chainsaw there are special holes on the left side. For convenience, you need to remove the protective cover.
  • We tighten both screws to the end, and then we unscrew each one 1/5 of a turn.
  • We start the chainsaw and warm up the engine for 5-10 minutes.
  • We adjust the idle speed. To do this, turn the screw T counterclockwise until the engine starts to work as steadily as possible. At the same time, we make sure that the chain does not rotate (if it does, we smoothly tighten the screw until it stops). If the engine stalls at idle, the T screw must be slightly unscrewed again.
  • We adjust the power of the motor and the quality of the mixture. Smoothly pressing the gas, we wait for the engine speed to rise to the maximum. According to the manufacturer’s data, the maximum speed falls at 11.5 thousand rpm (for an accurate determination, use a portable electronic tachometer). If the revolutions do not increase, it is necessary to turn the screw L counterclockwise by 1/8 of a turn. The maximum speed must not be exceeded above the recommended ones, because this can lead to ignition problems. In this case, turn the screw H counterclockwise, thereby reducing the maximum speed

If you don’t have a tachometer at hand, you can determine if the carburetor is visually adjusted correctly. When the engine emits a lot during operation (the mixture is enriched), screw L must be slightly tightened. In the case when the engine heats up and picks up speed by itself, the screw H must be unscrewed counterclockwise by about ¼ turn.

Sometimes it happens that the adjustment does not help. The motor does not develop revs or stalls. A clogged filter or air intake may be the cause. It is enough to clean and re-adjust the carburetor if necessary.

Carburetor device

The carburetor body of the Partner 340 chainsaw is made of aluminum alloy. It has technological channels through which a mixture of fuel and oil moves and a diffuser. The task of the latter is to mix air with gasoline, thereby forming a combustible mixture.

The main elements of the carburetor are:

  • fuel pump;
  • main chamber with membrane;
  • throttle and air dampers;
  • screws (adjusting quality, quantity, idling);
  • needle valve;
  • fuel jets.

Summing up

The carburetor of the Partner 340s chainsaw has no significant drawbacks. It is simple and reliable in design. All breakdowns in it occur due to careless use of the chainsaw and prolonged use (material fatigue). Correct adjustment and maintenance of the carburetor will significantly extend its life. Someone may not be satisfied with the average cost of the carburetor. 23-30 However, in this case, the price is quite consistent with the quality.

Finding reasons why the chainsaw won’t start

Amateur and professional chainsaws are complex devices. The service life of their two-stroke engines, components and assemblies has its own limitations. For this reason, quite reliable and expensive tools, along with cheap Chinese units, periodically fail and refuse to start. The situation when the chainsaw does not start or stalls is not very pleasant and sometimes confuses the user. How to identify and correct a malfunction by returning the instrument to work.

Correct Way To Adjust Or Tune The Carburetor On A Chainsaw. Video

Checking the condition of the fuel and air filters.

If everything is in order with the fuel quality, the chainsaw engine may not start due to clogged fuel and air filters. To diagnose these elements, it will be necessary to perform a number of manipulations associated with their dismantling.

For the fuel filter:

  • Disconnect the gasoline supply channel from the carburetor;
  • Pump up fuel.

If there is little or no pressure in the pipe, disconnect the filter. Before that, free the tank from the mixture and remove the filter element itself. Dismantling is done with a wire hook. A clogged replacement cartridge that causes a poor starting of the chainsaw engine can be cleaned, but it is best to replace it with a new one. When using the tool in dusty conditions, it should be cleaned on a regular basis.

A clogged air filter can cause the chainsaw engine to run erratically, making it stalling or difficult to start. Dust and dirt deposited on the adsorbent material make it difficult for air to enter the system, make the fuel mixture so rich that it will sometimes be difficult to start the tool.

Checking the air filter is one of the first steps in finding the cause of a poor start.

Care should be taken when removing the air filter, as dust accumulated on the surface of the saw during operation can enter the carburetor. And this is fraught with more expensive repairs. After detaching the cartridge, thoroughly clean it from the accumulated dirt and rinse it with the addition of detergent. Dry the element and put it back in place just as carefully.

Chainsaw Partner 350 Starts and stalls. Similar posts

Why does the chainsaw stall when you press the gas?

Hello! If you find yourself on this page, then, most likely, your chainsaw stalls when you press the gas, and you want to find out why this is happening and what to do about it. That all the same, I will try to help you in this dilemma by examining the more widespread prerequisites for such a hassle, as well as ways to eliminate them.

To begin with, I’ll immediately write for novice users that many chainsaws before work asks to warm up the engine at idle speed for about one minute. Why the chainsaw starts and stalls. the reasons and. Here the chainsaw stalled and does not start, or the Stihl chainsaw stalls. While the engine is cold, the saw may stall when gas is added.

So, if a heated chainsaw can idle, but stalls under load, then this means that:

  • the carburetor is incorrectly configured or clogged. the most common case;
  • it does not have enough air, the consumption of which increases sharply with increasing revolutions. this means that the air filter is dirty (a rare case, because the filter is contaminated evenly, so the user first notices a loss of power);
  • it does not have enough fuel, the consumption of which also increases with increasing speed. this means that the fuel filter is dirty (also an infrequent case);
  • Well, and the worst case, if there is excessive friction between the piston and the cylinder wall, associated with a lack of oil in the fuel consistency. after this operation of the chainsaw, you will most likely fly into the repair of the piston group, because scuffs form on the piston and cylinder walls that prevent saw operation.

Let’s analyze these cases separately.

Determine the availability of fuel and its supply.

First you need to make sure that there is a fuel mixture in the tank of a chainsaw that does not want to start, and it regularly enters the carburetor. With a full tank, we check how the mixture is fed through the gas line. Disconnect the fuel system pipe from the carburetor and try to pump it up. In the case of a complete order, when pumping up, gasoline will be supplied in jerks in accordance with the norms set by the manufacturer. Poor or no fuel supply may result from:

  • The fuel supply channel is clogged;
  • Debris-clogged fuel filter.

Often the reason for a poor start of the chainsaw can be a tank that is too full. In this case, you should pay attention to the presence of smudges under the saw case cover. If present, see the connection of the gasoline feed pipe to the carburetor. Most often, it is squeezed out by pressure when the tank cap is screwed on, which is filled under the very neck, which prevents the engine from starting.

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The quality of the fuel mixture can also be one of the reasons why the chainsaw does not start. If, after completing the work, the remaining gasoline is not drained, and the tool is left for long-term storage (more than 2 weeks), then the processes of resin formation and polymerization of the components will begin to occur inside the tank. What can cause carbon deposits on the piston, rings and cylinder liner. Therefore, always prepare the mixture only in the required amount before work.

Stalls when you press the gas

If the chainsaw stalls when you press the gas, then you need to inspect the gasoline and air filter, as well as the fuel pump.

  • During operation, the air filter is heavily clogged, and when the gas is pressed, the tool stops working. The filter is dismantled, cleaned or washed with warm water, dried thoroughly and only then installed back. Then disconnect the fuel hose screwed to the carburetor. Gasoline should flow through it. The hose is cleaned or replaced with a new one if no fluid has leaked out. The filter is in good working order and you can skip checking it if the gasoline is flowing well.
  • The chainsaw stalls. the gasoline pump may have worn out. If gasoline flows through the walls of the pump, it means that the device has stalled because of it. This part is changed to another.

In order for the saw to start, you need to accurately determine the cause of its malfunction, and then try to fix it yourself. If the problem is not found or it is not possible to fix it on your own, then it is better to seek help from specialists.

Checking the spark on the spark plug and eliminating the causes.

The first step in finding the reasons why the gasoline saw won’t start is to check the spark on the spark plug. There are many factors that affect the performance of this element. However, the main ones at the initial stage of instrument troubleshooting are:

  • Incorrect carburetor adjustment;
  • The presence of more than it should be, the amount of oil in gasoline;
  • Clogged air filter.

All of them contribute to the formation of carbon deposits on the spark plug electrodes. In 50 cases out of 100, the saws do not start on a cold one due to the absence of a spark due to carbon deposits on the electrodes and their corrosion. As a result, the gap either decreases or increases.

Checking the spark plug with an idle chainsaw

It is quite easy to check for a spark. This will require:

  • Remove the tip of the high-voltage wire;
  • Unscrew the candle;
  • Put the tip back on;
  • Lean the candle with a skirt against the cylinder;
  • Start with a starter.

If a good spark is observed between the electrodes at the time of starting the engine of the chainsaw, then everything is in order with the ignition unit. If it is not there, then it is worth cleaning the element itself and checking the gap of the electrodes. If necessary, use a special probe to adjust the distance between the contacts.

For candles from different manufacturers, the distance between the electrodes may fluctuate. For some, it may be equal to 0.5 mm. Others have 0.2 mm. Therefore, carefully study the manufacturer’s recommendations.

There may be no spark on the spark plug for other reasons. Of the main faults affecting the poor start of the chainsaw and the unstable operation of the internal combustion engine at idle, from which the tool can stall, the following can be attributed:

  • Overflow of the spark plug channel with fuel;
  • Lack of contact between the high-voltage cradle and the tip of the candle;
  • Failure of the ignition unit.

How to start a cold chainsaw if the spark plug channel is constantly flooding with gasoline? To eliminate the problem while starting the tool, you can use the following algorithm:

  • Unscrew the candle with a special key;
  • Wipe it with a clean and dry cloth;
  • Dry for 20. 30 minutes;
  • Remove carbon deposits with a file and adjust the gap between the electrodes;
  • Drain the remaining fuel from the spark plug channel and dry it;
  • Collect everything and try to start the mechanism.

As a rule, these measures are enough to start the chainsaw and get the job done. However, this extreme measure does not eliminate the main reason why the engine does not start or stalls. improper operation of the carburetor, which needs fine adjustment.

If there is no spark and poor contact of the high-voltage cradle with the spark plug tip, check the connection. The check can be done using a conventional tester. If a defect is found and it is eliminated, the chainsaw should start without any problems.

If the check showed that the contact is reliable, and the saw does not start further, look for the cause in the ignition unit. As a rule, a faulty unit cannot be repaired and restored. A complete replacement is required here.

If it starts and stalls

When the chainsaw starts and stalls, it is due to the carburetor or other parts. Reasons for the malfunction:

  • Poor fuel flow to engine. This is due to a clogged breather.
  • There is not enough fuel in the tank. By tilting the tool sideways, the remaining fuel flows into one place. This causes the saw to stop working.
  • Poor quality fuel.
  • The plug insulator overheats when poor contact is made between the wire cap and the plugs. Contact between them becomes worse with soot or mechanical shear.
  • Spark plugs defective.
  • Fuel does not flow well to the carburetor through the fuel filter or pump. As soon as the tool starts to increase the speed, it immediately stalls.
  • If the air filter is dirty, the engine cannot handle high loads and stops.
  • Insufficient or no lubrication in the chain.
adjusting, carburetor, partner, 340s, chainsaw

Partner p340s chainsaw repair

Question: I decided to work with a Partner 340 s chainsaw. About 20 days, 7-8 hours a day.

The frosts were hard. There are no complaints about the start-up and the engine, but the chain lubrication has disappeared. What to do?

Answer: It is very likely that if the oil was thick, the oil pump drive was ripped off.

It should be, as it were, a weak point in the drive, just in case. either a worm, or a gear on the plunger, but it’s not good to do weak to such an extent.

It is necessary to remove the clutch, remove the pump and watch. Or service.

Question: On the 3rd day of operation, the transmission mechanism failed, that is, the motor is running, and the chain does not rotate as at idle. What’s the problem? Some kind of gear flew?

Saw Partner p340s, sawed wood. He took off the box, there is a drum, under which an asterisk, dangles. Maybe a marriage? I twist the chain by hand, the sprocket rotates, it is not movable inside, the drum itself is also not movable.

When assembled and wound up and the brake is raised, the chain does not rotate at low or full throttle, there is no clutch.

Answer: This means that the asterisk has been removed from the drum. Surely a factory defect, only the leading sprocket is attributed by manufacturers to the expense, many even clearly indicate this in the saw’s passport.

Question: Such a problem with the Partner p340s chainsaw. I press the gas and it happens that the failure goes as if the mixture is not enough, but the tank is full.

The mixture was made 40: 1, oil 2t, turn active Partner, rosy, gasoline 92y. Saw new.

I saw the board at low revs and it may stall. And also the oil flows from the chain when it just stands idle.

Answer: The carburetor is not adjusted most likely.

Question: The Partner 340 S chainsaw is in operation. It stopped starting at all. In operation a little over 2 years.

At first it began to start up intermittently, but every time it started up. Now you can’t start it at all. the maximum that you can do is pull the handle, start the engine for a couple of seconds and immediately stall, after which it will not start.

I changed the candle. there was almost no difference (the old spark was noticeably worse), except that she began to grasp at least for the first time.

After pulling the handle of the plant several times, the candle becomes damp, after drying it is possible to start it only for 1-2 seconds, after which it fills in the candle again.

I tried to blow through the carburetor. no change. What else can you see?

Answer: start by removing the muffler. It’s simple enough there. At the outlet, inspect the condition of the piston. If you see longitudinal grooves, that’s all. replacing the piston.

Question: the piston is pulled right on the body itself, when assembling the Partner 340s chainsaw, are there any nuances or not?

Answer: when you put a bearing with an oil seal on the clutch side on the crankshaft, you need to slightly twist it to the left. to the right and look so that the inner part does not wrap on the oil seal, the so-called. lip.

READ  Stihl Chainsaw Does Not Start Ms 180 Reasons

If the spring pops out, the saw will not work. You can use a thin screwdriver to touch up the lip on the edge of the crankshaft, just carefully, and slightly lubricate the crankshaft and lip of the oil seal with gasoline oil.

The question is: what could be? Sawed with a Partner chainsaw for 340 minutes 15, stalled and did not start, only grabbed and stalled, then stopped grabbing, removed the air filter, started up, but also did not work smoothly.

The saw is new, burned only a couple of liters, working not very long. Idling seems to be normal, only floats, this is annoying.

Maybe there was overheating? I saw at maximum speed, I do not hold it at idle speed for a long time. How to check the piston?

Answer: That’s not very good that swims. There should be idle speed on a serviceable saw. watch, especially on a new one.

Remove the muffler. it’s very easy there and look at the piston and cylinder. There should be no longitudinal scratches and scuffs.

If the piston is in order, you can (if you have at least some skills) try to deplete L a little by turning a little clockwise.

Question: I bought myself a Partner p340s chainsaw, cut 3-4 trees with it, which are not at all large, and the saw began to stall at idle. That is, when you give gas, it starts to work with a slight dip.

As soon as you turn off the gas, it works for about 30 seconds and stalls. The mixture was prepared as
put according to the instructions. Tell me who faced this?

Answer: The idle screw T on the carburetor should be slightly clockwise to the right. If there are further dips, screw L must be slightly unscrewed (against the arrow). Do not touch screw H.

It is best for a master to do it. poor winding is associated with the screw L, it becomes poor. Failures are also due to this.

Sometimes start the saw, it warms up, runs at idle. You press the gas sharply, the saw seems to be thrashing, trying to stall (stalls). If you press gently, the engine accelerates. this is a failure.

Turning screw L. you add gasoline at idle. And feel
it is possible. with a sharp press on the gas, the saw sharply gains momentum without failure.

If it works normally on gas, then the screw T has no results. try to turn L counterclockwise, a little bit.

Spin 1/12 1/6 wait 15 seconds, spin wait. until there is a failure during re-gasification.

Question: the Partner 340S chainsaw without an overrunning clutch, when trying to find it, it turned out that on sale couplings with a left thread and a diameter of 8 and 10. and on the crankshaft it looks like 9, since it does not turn on 8 at all, but flies along the thread for 10.

Crankshaft thread not stripped 100%. Who will tell and advise what?

Answer: Apparently, I mean the clutch. The logic here is simple. since the ones on sale do not fit your saw, then they are from other models and you need to look for the clutch specifically from the 340S model.

It is possible that it will be possible to pick up an analogue from another saw, but most likely it will not fit in terms of the outer diameter, or width, or overhang, or the stiffness of the springs.

Question: I bought and tested a Partner 340 s chainsaw. The build quality is not bad, although I did not like the chain tension scheme (I unscrewed the tire nuts, and only then did you screw in the tension screw, its work is also a little slowed down); the plastic is quite dense; everything starts up quickly.

But, there are some doubts about the power when working with this saw, namely: you press the throttle lever, and it, at times, reluctantly picks up speed, hence the stops in the cut itself, which is why you have to take it out of the cut, do a little overrun and continue cutting.

What is more like having to adjust the carburetor? Or is it something else?

Mixture: last year’s 92 1 year old husquarna oil (I suppose this is not critical), proportion 1:47 (break-in period). While I managed to burn 1.5 tanks of fuel.

Answer: You need 1:35, only semi-synthetic oil. The method has been tested, and in the case of good gasoline it will not be worse either.

Characteristics and features

Partner 340 has the following specifications. With a power of 1.4 kW, which is translated into horsepower of 1.9. This power is enough to carry out all types of work in the garden or on the plot next to the house. The length of the tire is 35 centimeters, which is also enough to fulfill the tasks assigned to the Partner 340s. Also, the saw is lightweight and can even be used by women.

In addition, Partner p340s has a built-in primer (manual fuel priming pump), which significantly reduces the number of cranking of the starter before starting and makes it quick and easy.

It is also important that this chainsaw has a pre-cleaning system for the air entering the filter (CCS). This system allows you to increase the life of the air filter and the time between maintenance.

This saw accepts STIHL 63 PS3 and OREGON 3 / 8-1.3mm saw chains with 52 links.

Carburetor adjustment

The Partner 340 is equipped with a Walbro diaphragm carburetor, which is adjustable.

In order to carry out the adjustment yourself, you need to have a special screwdriver and a tachometer (a device for checking the number of engine revolutions).

The adjustment screws have a standard designation. Screw (T). adjusts the idle speed. (L). is responsible for the quality of the fuel mixture at low and medium speeds. (H). adjusts the power and the number of high rpm.

If you have no idea at all how and why the adjustment is carried out, then you better contact the service center. Otherwise, you risk ruining the engine by setting the wrong settings.

The carburetor of the Partner 340s chainsaw is adjustable in two stages. The first stage of the adjustment is carried out on a muffled saw. To do this, set screws (L) and (H) 1.5. 2 turns from the fully tightened state. Screw (T) half-tighten.

At the second stage, the chainsaw is started and allowed to run for several minutes in order for it to heat up. Further, using a tachometer, find the position of the screw (L) in which the engine gives out maximum idle speed and unscrew the screw ¼ of a turn from it. With the screw (T), the idle speed is returned to normal. 800 rpm is considered normal, you can check it with a tachometer. If there is no tachometer, then it is necessary to set such a number of revolutions at which the saw chain does not spin at idle, but the chainsaw works stably.

The screw (H) sets the maximum speed. For Partner p340s, their value is 13000.

Chainsaw device Partner p340s

The Partner 340 device is not much different from other manufacturers’ chainsaws. This saw has a vertical motor. The carburetor is fixed in the classical way. An air filter is located behind the carburetor. Fuel and oil tank located in the rear handle.

User reviews

Alexander. Pskov.

Partner 340, this is the second chainsaw I have owned. Before that, there was an incomprehensible Chinese saw, which had to be constantly repaired and eventually thrown out. I am very pleased with Partner, for the two years during which I actively exploited it, the saw never let me down. It is felt that the chainsaw is assembled with high quality and for people. I recommend to all friends and relatives to buy exactly Partner 340.

For what purposes is Partner p340s intended

The Partner p340s chainsaw is a saw for domestic use and can only be used for simple household tasks. For example, for clearing the site of small growth or annual harvesting of firewood. For more serious tasks, this saw does not have enough power and resource.

Manual for chainsaw p340s

All Partner p340s chainsaws are supplied with instructions, after reading which the user will receive as much information as possible on how to use the chainsaw correctly, store and carry out maintenance. Since Partner is not a chainsaw for professionals, the instructions contain information on how to cut trees correctly in order to protect yourself as much as possible from injury.

Also in the document you can find out what protective devices and clothing must be used when working with a saw.

Partner p340s household chainsaw review

Partner is engaged in the production of gasoline saws and is a subsidiary of the well-known Husqvarna AB. In today’s review, we will consider one of the popular models of chainsaws. Partner p340s.

  • For what purposes is Partner p340s intended
  • Characteristics and features
  • Chainsaw device Partner p340s
  • Major malfunctions
  • Carburetor adjustment
  • Manual for chainsaw p340s
  • User reviews
  • Output