Working device
This assembly includes a 45 cm long quick release guide bar made of wear resistant low friction metal. The longitudinal one and a half millimeter groove serves for laying and holding the cutting chain in idle and working modes. Chain wear in 3/8 ” increments is compensated for by adjusting the tensioner.
To prevent overheating and accelerated wear, the chain and bar are lubricated with oil, which is supplied in a metered volume from a built-in reservoir with a volume of 0.325 l.
Specifications
The Stihl saw model MS 361 is equipped with a compact and economical carburetor engine with a displacement of 59 cm3 and an output of 4.6 hp..
The power unit is equipped with modern air purification and vibration protection systems, as well as an effective exhaust silencer of 115 dB. The autonomy of the saw is increased by increasing the volume of the fuel tank to 0.69 l.
| Manufacturer | STIHL |
| Manufacturing (assembly) | Germany |
| The birthplace of the brand | Germany |
| Class | Professional |
| Engine volume, cm3 | 59 |
| Power, h.p. (kw) | 4.6 (3.38) |
| engine’s type | 2-stroke, gasoline |
| Chain pitch, inches | 3/8 |
| Chain thickness, mm | 1.6 |
| Fuel tank volume, l | 0.69 |
| Oil tank volume, l | 0.33 |
| Tire length, cm (inches) | 45 (18) |
| Number of links | 66 |
| Warranty, years | one |
| Weight, kg | 5.6 |
| Instructions | Download |
Carburetor adjustment
The factory settings of the carburetor should not be changed without good reason. The consequence of unskilled intervention in the operation of the fuel system can be a drop in engine power, increased fuel consumption, problem starting and other undesirable phenomena..
The basis for adjusting the carburetor is the transfer of the tool from summer to winter operation and vice versa. Alternatively, the use of gasoline with a different octane rating.
Work is performed on a warm engine. After setting the minimum idle speed, by rotating the quality screw, you should reach a stable mode, in which the engine does not stall with a sharp gas supply.
Chainsaw customization features
The design of the carburetor engine provides for the stability of traction and other operating parameters throughout the entire long working life..
The new tool of the Shtilev brand in all respects meets the requirements of modern engineering, operational and sanitary and hygienic standards. Precise adjustment of working systems and assemblies allows you to use the capabilities of the tool with maximum efficiency, master the entire scope of work in compliance with all safety measures.
High standard of operational reliability
The improved saw model MC 361 is distinguished by a more perfect and ergonomic design, stability of idle speed and operating modes, a quick set of maximum speed, economical consumption of gasoline-oil combustible mixture.
With qualified service, the number of failures and malfunctions of this model for the amount of work performed is minimal. The situation when the engine does not start is most often a consequence of poor care, savings on fuel quality, or gross mistakes made during operation.
Advantages and disadvantages
The creators of the Stihl MS 361 chainsaw position it as a universal professional-level tool designed for effective use in forestry technologies and the construction of wooden structures of any complexity..
The advantages of this model are successfully combined:
- rich experience in operating the previous branded assortment;
- price level available to a wide range of potential buyers;
- high performance;
- power and torque reserve of the power unit.
Confirmation of these properties is the high level of consumer confidence in Stihl chainsaw products and the consistently high demand for the entire list of proposals..
Over the entire period of operation, no significant flaws in the saw design have been identified.
Despite professional status, .
Analogs
In this price range on the domestic market there are branded imported saws Husqvarna 365, Makita EA6100P45E, Stihl MS 362, EFCO 162-51, ECHO CS-620SX-18, Oleo-Mac GS 650, Dolmar PS-6400.
Chainsaw Stihl MS 361 – the reliable assistant of an experienced craftsman
The professional chainsaw tool of the Stihl brand, known for the reference quality of its products, does not need special advertising. The popular Stihl MS 361 chainsaw demonstrates high performance, efficiency and reliability in difficult and extreme operating conditions..
Based on the popular MS 360 model, the universal tool is designed for large-scale logging and sawing operations, longitudinal and transverse cutting of construction timber, creation of wooden elements of landscape design.
How much is a carburetor for a Stihl MS 361 chainsaw
Today there are at least four types of carburetors for the Stihl MS 361 chainsaw on sale..
They cost from 1,600 to 6,400 rubles. On foreign sites – about $ 41.
The huge price range suggests that some of them are fake, counterfeit and substandard carburetors..
Step-by-step adjustment algorithm
Make sure the air filter is clean before adjusting. If it is clogged, there may not be enough air for complete combustion of the fuel mixture. Therefore, the engine does not work correctly. Perhaps adjustment is not required, but you need to clean or change the filter.
They remove the filter and try how the engine works without it. If ok, the problem is in the filter.
The engine cannot run for a long time without an air filter, only a test run. Debris trapped inside the engine can damage it..
The presence of carbon deposits in the spark arrestor grill and muffler is also checked. If the exhaust gas outlet is difficult, the engine also does not work correctly and the problem is not in the carburetor setting..
Stihl MS 361 Carburetor removal
Which carburetor is installed on the Stihl MS 361 chainsaw
The Stihl MS 361 chainsaw is equipped with a modern C3R – S 236 diaphragm carburetor with a built-in fuel pump. Manufacturer – Stihl company. When assembling its chainsaws, Stihl does not use parts from other manufacturers, for example, Walbro, as many other brands do. Stihl MS 361 carburetor is well thought out structurally, economical, provides stable engine operation at any speed.
DIY Stihl MS 361 chainsaw carburetor adjustment
The three adjusting screws are mainly for factory adjustments. After assembling the carburetor and saw, each of them is adjusted one by one, on special stands, taking into account the characteristics of each Stihl MS 361 chainsaw. The screws are securely fixed and during operation and do not spontaneously unwind. Adjustment is rarely required. Namely:
- In case of critical wear of the piston system, when the compression ratio (compression) has changed greatly.
- When replacing the piston system when the chainsaw does not work as it did during the factory setting.
- When working in the mountains, where, due to low atmospheric pressure, the engine does not have enough oxygen, and it is necessary to increase the air supply (lean the mixture).
In other cases, idle speed adjustment is most often required if the engine stalls in this mode.
Standard adjustment
The manufacturer of the Stihl MS 361 chainsaw in the Operation Manual (page 37) recommends the following carburetor adjustment algorithm:
- Turn the high speed adjusting bolt H clockwise until it stops, but no more than 3/4 of a turn..
- Turn the idle speed adjusting bolt L clockwise until it stops. Then turn counterclockwise 1/4 turn.
- Start the engine and warm up for 7-10 minutes.
- Then the idle speed is corrected by adjusting the stop screw LA with the engine running. It is screwed in clockwise, increasing idle, until the chain begins to move. Then the screw LA is unscrewed back 1/2 turn..
- If, when adjusting with the LA screw, it is not possible to correctly adjust the idle speed (the engine stalls or the chain turns), they are corrected with the screw L. It is unscrewed by 1/4 of a turn. Then continue the adjustment with screw LA, unscrewing it counterclockwise until the chain stops. Then in the same direction for about 1/2 turn. But so that the engine does not stall at idle.
In addition to the manufacturer’s recommendations, there are practical points for adjusting the carburetor.
Stihl MC 361 chainsaw carburetor adjusting screws
Informative video
Advantages and disadvantages
Original Stihl chainsaw carburetors have no technical drawbacks. This product is from German manufacturers, technically sophisticated and modern. Channel cross-sections and throughput of calibrated holes are precisely calculated.
Walbro carburetor used on Stihl MS 361 chainsaws
An engine with such a carburetor does not consume excess fuel, but is capable of operating at full power. For its manufacture, materials suitable for their properties are used. The metal does not oxidize, it is strong enough. Plastic parts are not corroded by gasoline and last long enough.
Problems arise mainly with counterfeit carburetors from unknown manufacturers..
The original carburetors of Stihl chainsaws do not break down also because the carburetors on any chainsaws do not experience large mechanical and thermal stress. Only gaskets and a membrane can fail in the original carburetor of the Stihl MS 361 chainsaw. After many years of use, plastic can change its properties, become hard or brittle. In this case, you can purchase a repair kit and replace old parts..
It is extremely rare to buy a new carburetor assembly, only in exceptional cases..
But no manufacturer can give a 100% guarantee of eternal work for their products..
Sometimes carburetors from the Stihl MS 361 chainsaw are bought in order to install them on chainsaws of other brands of similar power..
Required tools
A feature of the Stihl MS 361 chainsaw is easy access to the carburetor. It is enough to remove the cover and the air cleaner. Therefore, no tools are needed to adjust, except a screwdriver. A tachometer is required for professional adjustment. It will show the number of idle and maximum rpm. Correct adjustment should provide 2500 rpm at idle and 10,000 rpm at maximum speed..
The Stihl MS 361 chainsaw can develop even 12,500 rpm, but it is not recommended to operate it in such an extreme mode.
In the absence of a tachometer, the maximum speed is determined by ear. Idle – in two boundaries: the chainsaw should not stall when idle is low, the chain should not move when the revs are too high.
The tachometer allows you to more accurately adjust the maximum and minimum revolutions of the chainsaw
HOW IT IS CORRECT TO ADJUST THE CARBURETOR ON THE CHAINSAW // Stihl
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He took off the carburetor, disassembled, removed the accelerating pump and hammered into the hole from it only not a sinker, but a piece of rubber (I inserted an elastic band, and did not drive in a sinker, I so that it was possible.if the problem was not that, play everything back. rubber band and insert the accelerating pump back and check for other reasons.Air leakage in the crankshaft oil seals, for example) But it all worked right away. and starts up well, and releases gas, and dumps (but without load, I don’t have tires and chains at hand yet).
Adjusting your Husqvarna chainsaw
During the break-in period of the Husqvarna 142, 240, 236, 137 chainsaw and other similar models, the carburetor settings are set in such a way that the engine speed is 600-700 less than normal working ones. In the event that the operating frequency cannot be adjusted by the tachometer, it is not recommended to knock down the factory settings with the H screw.
The manufacturer expressly prohibits exceeding the working number of revolutions independently. When, after adjusting the carburetor, the chainsaw chain moves at idle, then by turning the screw T counterclockwise, you need to stop it.
In order to adjust the saw accurately, it must be placed on a flat surface with the bar forward. You also need to warm up the engine for at least 12-15 minutes. The highest idle frequency number should be determined first. To do this, screw L must be turned clockwise in the chainsaw, and then in the opposite direction. After determining the desired frequency, the same screw is turned counterclockwise from 12 to 25% of its full turn.
Idle speed in models of this manufacturer is adjusted using a jet with the letter T. Adjustment is made by turning it clockwise until the chain moves. Then turn lightly counterclockwise until the chain stops moving..
The screw H of the chainsaw is adjusted correctly only when the saw does not make a lot of noise when the gas is pressed all the way, and at the same time it does not become heavier with any load.
In the event that the saw is too noisy during operation and smokes, then this jet must be turned from left to right to adjust.
Stihl Ms 250 Chainsaw Carburetor Adjustment
Stihl MS 250 chainsaw carburetor repair
How To Adjust Carburetor On Stihl 250 Chainsaw
Trimmers and Chainsaws
The need for the “Chainsaw adjustment” operation is determined by the color of the spark plug electrodes: if black. means re-enrichment if brick gray. means normal if there is a white coating on the electrodes of the candle. then the mixture will be thin.
The top screw (the one closest to the muffler) plays the main role in tuning the carburetor of the Stihl chainsaw. According to the factory parameters (indicated on the cover of the chainsaw), it should be twisted 1 turn, and then it should be fixed. if it is twisted, the working mixture is rich (more fuel enters the air-fuel mixture), if this screw is screwed on, the working mixture is impoverished (less gasoline falls in the air-fuel mixture).
Stihl Saws & Partner
In the Stihl 250, 361 chainsaws, as well as the Partner 351, 350, the carburetor is adjusted using the H and L screws by setting the proportions of gasoline and air. If you release them, a large part of the fuel will be added and therefore the revolutions will be high, otherwise, on the contrary, they will fall.
Idling speed in Partner chainsaws is regulated with a screw with the letter T, and in Calm, as a rule, you need to look for the aircraft marking. The standard setting of the chainsaw is carried out during the final tests. Basically, after such settings, the percentage of fuel in the working mixture is greater than that of air, which does not correspond to the optimal parameters. But they must be saved during the first hours of operation during the running-in of the device. After that, the saw can be adjusted independently, but it will work well at the factory settings..
But if it is decided to regulate independently, then the actions must be performed in the following sequence:
- screw adjustment L;
- then adjust the H jet;
- after that, go to the idle speed setting using the T screw (if the Stihl chainsaw is LA).
First, screw L must be turned in both directions in order to find the maximum engine speed. If that point is found, then turn the same screw by ¼, thereby slightly slowing down the speed. If at the same time the chain continues to move at idle, it is necessary to immediately turn the screw T (LA) until the chain stops completely.
After setting the maximum speed with screw H, you need to check the frequency with the tachometer. In the event that it does not correspond to those indicated in the service book, the setting must be repeated. When a lot of smoke comes out of the exhaust pipe at maximum speed, then the mixture is too rich in fuel, if noises are heard and the engine is very hot, then on the contrary, it is poor. Then you need to adjust the idle speed. With the correct setting, the engine should sound even at low speeds, while the chain should not move..
Stihl ms 250 chainsaw carburetor adjustment.
Before that, I still twisted all the carb screws. How do I set it back to factory settings? So far I’ve configured it like this:
– screw L (top right). twisted clockwise to the stop and unscrewed counterclockwise by 1 turn;
– screw H (top left). screwed it clockwise all the way and unscrewed it half a turn counterclockwise (and the maximum can be unscrewed by 3/4 turn, but is it worth it?)
– screw L / A (bottom). twisted clockwise as far as it will go. saw plowshares at idle speed. I began to twist it counterclockwise until she stopped yelling and just started rattling. If you continue to unscrew it further. the saw stalls. I found something like this, when the saw does not stall at idle, and does not scream too much, but just rumbles. When I can put the tire-chain. tune it better. before starting the independent movement of the chain.
So far, at such settings, everything works fine and accelerates (without a bus)). I have good settings, or the factory settings of the upper screws should be somehow different?
Evgeny Menzhiliy: on the FS-130 spit
fuel pumping does not move, for the winter did not free the carburetor from gasoline?
Sasha Bobrov: ATP
Seryozha Fel: Artyom thanks for the video. helped,! I have been suffering with this problem for a long time. I cut this ring off the gas hose from the old 180 calm just like in diameter, I did a little bit of money. and it all worked with a bang. then I will buy a repair kit so surely. thanks again.
Mikhail Burashnikov: Thank you. You answered me a question that is mysterious for me by 180. The same problem with increased revs. stalls and does not start. I went to the service and buy a repair kit for the accelerator. Thanks you !
Adjusting the carburetor on the Stihl MS 230, MS 250 chainsaw
In this video we will answer the question of how to set up or adjust the carburetor of a chainsaw with your own hands.
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DIY Stihl MS 361 chainsaw carburetor adjustment
The three adjusting screws are mainly for factory adjustments. After assembling the carburetor and saw, each of them is adjusted one by one, on special stands, taking into account the characteristics of each Stihl MS 361 chainsaw. The screws are securely fixed and during operation and do not spontaneously unwind. Adjustment is rarely required. Namely:
- In case of critical wear of the piston system, when the compression ratio (compression) has changed greatly.
- When replacing the piston system when the chainsaw does not work as it did during the factory setting.
- When working in the mountains, where, due to low atmospheric pressure, the engine does not have enough oxygen, and it is necessary to increase the air supply (lean the mixture).
Stihl 361 chainsaw poor running investigation: part 1
In other cases, idle speed adjustment is most often required if the engine stalls in this mode.
Fuel
If its volume in the tank is insufficient, then the chainsaw will surely stall. It is not difficult to determine this: the unit stops working in an inclined position, since the fuel pick-up pipe is in empty space. Add a mixture of gasoline and oil to at least one third of the total. The second reason associated with fuel is its low quality, which is most often caused by incorrect proportions. Drain the mixture that was in the tank and refill with a new one, according to the instructions.
Nuances you need to know
Turning any propeller changes the factory setting. Therefore, it is extremely important to memorize or record the number of revolutions by which the position of the screws changed during adjustment. For example, if a screw is tightened all the way, it must be tightened, be sure to count the revolutions. Only this will make it possible to return to the factory adjustment parameters if it is unsuccessful..
The adjustment is carried out only on a warm engine, otherwise it will be incorrect – a cold and a warm engine work differently.
High speed adjustments are easiest to do with the engine running. Screw H is turned in small steps by 1/4 – 1/2 turn in one direction or the other. By pressing the throttle handle, they try how the engine reacts to a change in setting. Changes in speed are determined by ear or using a tachometer.
After correcting high rpm, it is most often required to correct the idle adjustment..
Which carburetor is installed on the Stihl MS 361 chainsaw
The Stihl MS 361 chainsaw is equipped with a modern C3R – S 236 diaphragm carburetor with a built-in fuel pump. Manufacturer – Stihl company. When assembling its chainsaws, Stihl does not use parts from other manufacturers, for example, Walbro, as many other brands do. Stihl MS 361 carburetor is well thought out structurally, economical, provides stable engine operation at any speed.
Required tools
A feature of the Stihl MS 361 chainsaw is easy access to the carburetor. It is enough to remove the cover and the air cleaner. Therefore, no tools are needed to adjust, except a screwdriver. A tachometer is required for professional adjustment. It will show the number of idle and maximum rpm. Correct adjustment should provide 2500 rpm at idle and 10,000 rpm at maximum speed..
The Stihl MS 361 chainsaw can develop even 12,500 rpm, but it is not recommended to operate it in such an extreme mode.
In the absence of a tachometer, the maximum speed is determined by ear. Idle – in two boundaries: the chainsaw should not stall when idle is low, the chain should not move when the revs are too high.
The tachometer allows you to more accurately adjust the maximum and minimum revolutions of the chainsaw
Carburetor
The reason for the sudden stop of the chainsaw may be incorrect adjustment of this device. Your Stihl361 carburetor has 3 special screws. The first of them is designated H (with its help the maximum speed is set), the second – L (regulates the idle speed) and the third S or LA (idle speed). Before starting, unscrew the third screw counterclockwise 1-1.5 turns and start the saw. If the engine does not stall, then look at the chain: it should remain stationary. If not, turn the screw in the opposite direction until the chain stops. If, when pressing the accelerator, the saw picks up speed too slowly, then this can be adjusted with the engine running with the screw L.
Check the adjustments and adjust if necessary
Step-by-step adjustment algorithm
Make sure the air filter is clean before adjusting. If it is clogged, there may not be enough air for complete combustion of the fuel mixture. Therefore, the engine does not work correctly. Perhaps adjustment is not required, but you need to clean or change the filter.
They remove the filter and try how the engine works without it. If ok, the problem is in the filter.
The engine cannot run for a long time without an air filter, only a test run. Debris trapped inside the engine can damage it..
The presence of carbon deposits in the spark arrestor grill and muffler is also checked. If the exhaust gas outlet is difficult, the engine also does not work correctly and the problem is not in the carburetor setting..