How to adjust the carburetor on a Partner chainsaw


The range of products for gasoline-powered saws is wide. Lightweight, domestic and semi-professional chainsaws Partner serve for household or garden work, professional. for repair and construction and industrial purposes. Regardless of its purpose, the equipment is equipped with a basic set of systems and functions.


Model 335 is a powerful and rugged chainsaw for home use, weighing 4.5 kg. The engine is a 2-stroke, 1-cylinder gasoline engine. Power output. 1.9 hp. с., 35 cm³ working volume. Cylinder walls made of solid steel.

Advanced dust- and sawdust-proof cooling system to prevent overheating.

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  • Oregon 91PJ056X type saw chain with 3/8″ pitch and 160SDEA041 bar with 400 mm length;
  • Carlton N1C-BL-M56E SK chain, 3/8″ pitch, 0.05″ pitch, and bar 16-10N156-MHC, 400 mm long.

Chainsaw fuel consumption at maximum operation is 513 g/kWh.


The Partner-352 chainsaw is capable of handling high-temperature loads, so it is often used for cutting and felling trees 15 cm in diameter or larger in forest areas, as well as limbing and branching.

Partner P350 carburetor adjustment

Special features

Using the Partner 350 chain saw with a 1.8 liter engine.с. allows you not to worry about the chain jamming, allowing you to perform the necessary amount of work on cutting firewood or doing construction work. This is ensured by an automatic inertia brake and chain lubrication during operation.

CCS system with a powerful air filter enables timely cooling of the machine and prevents it from overheating. The pole saw has low production noise due to its well-designed housing that dampens noise.

Read a helpful article with a review of popular pole saw models here.

3/8-inch chain pitch allows for evenly distributed load distribution. Fuel tank capacity of 0.4 liters provides the right amount of fuel for continuous operation, and does not weigh down the saw’s 4.7 kilogram weight. Engine displacement is 34 cc.see.


If you tune the carburetor chain saw “Partner-350”, you should learn more about the device node, in many models the design features are almost identical, so these recommendations will be relevant.

The elements should be removed with the utmost care, put them in order, it will help you in the reassembly process. Three bolts hold the top cover, they must be removed, after which you will see a layer of foam rubber, which acts as part of the air filter. The foreman will have to get rid of the fuel hose, this will lead to the removal of the traction drive.

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Adjusting the carburetor chainsaw

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“Partner-350” is not possible unless you remove the cable lug, this must be done in the next step. The gasoline hose, which is on the left side of the nozzle, should be dropped. All of the above work will disconnect the carburetor, which can be adjusted. This mechanism is complex, so if you need further disassembly, you need to carefully remove the elements, because their size is very small, which can easily cause them to get lost.

How to adjust the carburetor of a chainsaw; Partner 350

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In the farmyard, in the country cottage, inexpensive and reliable chainsaw Partner 350 has replaced two-handed tools and a hacksaw. The Swedish brand originally transferred the rights to the brand with a production site in Russia. Therefore, with proper quality, the tool is inexpensive. For amateur use, the model is as convenient as possible Depending on the equipment, it is acceptable.

How to adjust

Adjusting the carburetor of a chainsaw Partner with your own hands requires the preparation of the following tools:

  • Tachometer (electronic crankshaft speed meter);
  • slotted screwdriver;
  • set of filters (their replacement is part of the adjustment process).

You can adjust the carburetor on the Partner 352 chain saw or other models only if you first clean the dirt. For this it is best to use a compressor with an air nozzle. The adjustment itself is performed in several stages:

  • To access the adjustment screws remove the cover. There is also access to them through special holes on the left side of the carburetor. It should be remembered that the left screw is the quality screw (marked H), and the right one is the quantity screw (marked L).
  • After that you need to screw in the screws fully and then loosen them by ⅕ turn.
  • Then you need to start the chainsaw, because the carburetor can only be adjusted when the engine is hot.
  • After that the screw of regulation of quantity needs to be turned clockwise up to the maximum engine speed. Once this result is achieved, the screw must be unscrewed counterclockwise by ¼ of a turn. After that, the chainsaw should work at idle. If the revolutions are too low or too high, the throttle is used.
  • Now set the maximum speed using the quality screw. This parameter is determined by the tachometer. The maximum possible value is easy to see in the manual. For example, this setting is 12500 rpm for the Partner 350

If you do not have a tachometer, you can visually determine the quality of the adjustment. If the tool smokes a lot when working, the quantity screw should be screwed a little. Or it may be another way to go. A chainsaw may work well at idle rpm but poorly at maximum rpm. The situation can be improved by turning the quality control knob and holding the throttle fully depressed.

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

Knowing a chainsaw makes life a lot easier, even for amateurs. In some professions, this tool is practically irreplaceable. But like any relatively complicated machine, a chainsaw requires periodic service. Due to untimely or not the best quality maintenance, and as a result of exposure to both routine and excessive loads, various kinds of malfunctions can occur. For professionals, intermittent or unstable operation of the saw reduces the efficiency of the work or can cause a ruined day’s work. A fairly common problem is that your chainsaw’s carburetor is not set properly, and becomes misaligned due to failed adjustment attempts or otherwise misaligned adjustment screws.

Main malfunctions

Like all saws with two-stroke engines, the Partner p340s has malfunctions that can easily be corrected without calling a service center. Such malfunctions include:

  • Lack of idle (one solution to the problem, adjusting the carburetor);
  • Difficulty starting (in some cases, also solved by adjustment);
  • Lack of spark (to fix it, you need to replace the spark plug, check and, if necessary, install a new ignition coil, also called a magneto);
  • Clutch faults (fix them by replacing the unit).

One of the most frequent problems with the Partner 340 is the lack of an oil supply to the bar and chain. Cause of malfunction, it’s a plastic oil drive pinion. This can be fixed by replacing the pinion.

Most chain saw malfunctions are due to improper use. You also need to keep your saw in good condition and have it serviced and cleaned in good time.

Never leave your Partner p340s with a gasoline-powered saw for an extended period of time. Before any down time of more than a week, be sure to drain the fuel and burn it off. For more information on how to do this, please see the instruction manual that comes with every Partner saw and beyond.

In order to solve more complicated problems, such as the loss of power or the inability to start the saw, you need to contact a service center or perform a complete diagnosis and repair your Partner p340s yourself. To familiarize yourself with the repair process, watch a video on how to diagnose, defect and repair your Partner p340s.

Setting up the saw with your own hands

The chain is not greasy. To avoid overheating and straining the chain, lubrication of the work unit should be automatic. When oil flows through the channels, they may be clogged with fine wood dust. Clean off dust and dirt after each cycle.

If there is a leak, check the integrity of the pipe and close the connection to the reservoir. Damaged hose replace or temporarily seal the hole with sealant. Repair the oil pump.

For chain saw faults, the Partner 350 is considered a parts failure for long-term use. If the sprocket, bar, rubber seals against vibration are worn or if the chain is clogged, you must take timely action. in difficult conditions, they must be checked, replaced, sharpened, and tightened in a timely manner.

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Thanks to cheap parts, I rebuilt my Partner 371 from scrap metal. It’s not complicated, and with the right assembly it’s easy to get the right result. I’ve been cutting firewood for the second year without any major problems. Nikolay

Operating a used Partner with a 14-inch bar already at the end of its life. Over the years of use was all bad and good, but the overall impression of this model is positive. The condition of the tool is working so far, if fundamentally fails, I will take the model Chrome with a 16-inch tire and a built-in vibration damper. Arkady Vasilievich