Changing the fuel hose on a chainsaw

Chainsaw fuel hose replacement

Professional services from specialists

The specified repair of a chainsaw requires a scrupulous attitude and careful detection of malfunctions. It is necessary in cases where the chainsaw starts to malfunction:

  • fuel is consumed at a tremendous speed;
  • there is a strong smell of gasoline;
  • smoke comes out of the hull;
  • leaks appeared;
  • saw does not start / stalls.

Fixing A Chainsaw That Leaks Gas. Stihl MS290 | MS390 Fuel Line Replacement

The cost of services for the repair of chainsaws

Type of work Cost, rub
Chainsaw diagnostics
Sharpening the chain one hundred
Replacing the flywheel 500
Replacing the muffler 250
Cleaning the muffler 400-600
Replacing shock absorbers on a chainsaw 400
Replacing the crown on the clutch cup 450
Chainsaw carburetor replacement 300
Replacing the ignition coil 300
Replacing the oil pump on a chainsaw 550
Chainsaw crankshaft bearings replacement 1500
Replacing the piston group on a chainsaw 1500
Replacing the oil pump drive 400
Chainsaw starter replacement 300
Chainsaw clutch replacement 400
Chainsaw clutch basket replacement 500
Replacing the starter ratchet 300
Starter repair 2-stroke engine 300-1000
Cleaning the adjustment of the chainsaw carburetor (replacing the repair kit) 700

Get a free consultation by phone

How is a chainsaw repair

The wizard acts according to the following scheme:

  • drains gasoline and oil;
  • dismantles equipment;
  • removes the body;
  • gains access to the hose;
  • disconnects it from the carburetor;
  • the fuel supply pipe is installed on the stand and searches for weak points. holes, cracks, distortions and expansions;
  • the fuel hose on the chainsaw is replaced when it is completely worn out.

The reasons why the chainsaw fails the owner

Statistics show that replacing the fuel hose on a chainsaw occurs due to the following circumstances:

  • a poor-quality fuel mixture is used;
  • the hose material ages, dries up and becomes too brittle;
  • the tightness of the fit in the area of ​​the choke decreases;
  • the carburetor setting gets off;
  • the hose becomes clogged and experiences increased internal pressure.

Repair and replacement of the oil pump

Consider how to change the oil pump. If the element leaks, then the gasket between the two parts should be renewed. If this part of the oil pump is not damaged, then it must be wiped and put back. Now they check the hose. There should be no cracks on it. If the hose is damaged, replace it. Then the outlet channels are cleaned with a compressor.

Fills the candle

If you notice that you are pouring a candle on a Stihl chainsaw, then a malfunction may have occurred in the fuel system. The engine must run on a mixture of gasoline and oil. If the mixture is lean, the power is reduced, the cylinder overheats and the saw systems wear out. A wet plug on a Stihl chainsaw is due to a disproportion in the fuel mixture. Lack of air in the mixture prevents proper combustion of the emulsion.

See also  How to replace a chainsaw starter cord. Trying to repair a chainsaw starter with your own hands

The use of low-quality gasoline can lead to engine wear.

Oil plugging of the spark plug also causes the use of oil for 4-stroke engines and piston wear. If such a malfunction occurs, you need to remove the gas tank cap and adjust the fuel supply. The air intake should be repaired. The clogged filter must be blown out with air, or it is better to replace it. How you can clean the filters is described in the instruction manual for the chainsaw.

It will be possible to determine the quality of the mixture using a spark plug insulator. If a brown color appears on it, this means that the quality of the mixture is normal. White color or soot indicates a poor or over-enriched composition of the mixture.

The candle is the cause of oiling. Interruptions in spark formation are observed when the gap is incorrectly set. In the instructions for the repair and operation of the device, the distance between the contacts of the spark plug is given. If you do not have such data, then you can set 0.7-1 mm.

If the gap is smaller, then the efficiency of ignition of the mixture decreases, if it is larger, then interruptions in the formation of a spark occur. To eliminate the over-enrichment of the mixture, the motor is purged. In this case, you need to remove the candle and turn the crankshaft several times with a manual starter.

Major malfunctions

The chainsaw must be used according to the operating instructions, then it will last a long time and will not fail. All possible malfunctions of the Stihl chainsaw can be identified and eliminated by yourself. Consider the main problems that may arise in the components and design of the device, and how to repair the Stihl 180 chainsaw with your own hands.

Removing and disassembling the engine

The engine is held in place by 4 screws installed on the bottom of the Stihl 180 chainsaw. To remove them, unscrew them, then carefully remove the engine from the seat and the rubber pipe of the carburetor.

To disassemble the engine, 4 crankcase screws are unscrewed, and it is removed, then you can remove the crankshaft assembly with oil seals, bearings and piston rings.

Removing bearings and seals usually does not require additional tools, but if the bearings were pressed onto the shaft with force, then a special puller will be needed for dismantling.

To remove the piston from the connecting rod, you will need to remove the retaining ring from the seat using a thin screwdriver, then the piston pin is squeezed out from the opposite side, after which the piston is retracted to the side.

See also  Chainsaw Sharpening Machine

Replacing the piston

Let’s consider how the diagnostics and replacement of the piston group is carried out. It is necessary to check the condition of the cylinder and the degree of wear of the piston. After dismantling the motor, unscrew the pallet, remove the crankshaft with the piston from the cylinder. Unscrew the piston pin stoppers. If the piston is defective, it must be replaced. Retaining rings are fixed with a cut down. Before installing the piston group in the cylinder, the piston is lubricated with oil. Before installing the crankcase, degrease its surface and apply a sealant.

Assembling the Stihl 180 chainsaw

Assembling the stihl ms 180 saw back is quite simple, the main thing is to adhere to the following algorithm:

How To: Replace Fuel Filter, Primer Bulb, Fuel Line & Return Line’s On Poulan Chainsaw

  • Install the piston on the connecting rod, the arrow on the piston should point in the direction of the Stihl 180 chainsaw, and the side of the crankshaft, which is intended for installing the flywheel, is located to the left of the piston;
  • Carefully insert the piston back into the cylinder, the place for mounting the coil should be on the side where the flywheel is installed on the crankshaft;
  • Install the bearings, oil seals, circlip on the shaft and lower the entire assembly into the seat in the cylinder;
  • Next, degrease the crankcase installation site and the crankcase itself, then grease with a sealant and, setting in place, tighten the 4 fastening screws;

To reassemble the Stihl 180 saw after the engine is assembled, the reverse sequence of disassembly must be followed. It is important to treat the process carefully and do not forget to install the rods on the carburetor, and connect the ignition wire.

Below you can see the disassembly of the Stihl 180 in the video, it was made for inexperienced users, it shows the whole process in detail.

fuel, hose, chainsaw

Dismantling the Stihl 180 chainsaw and assembling it, with some experience, is quite simple, the main thing is to thoroughly clean the saw before work and not to rush. In order that small parts are not lost, you need to use containers in which, in the process, you should lay out the parts.

Carburetor repair and adjustment

The carburetor is adjusted on a warm engine. If the engine fails to tune, the carburetor stuck may cause excess gasoline in the mixture. To remove the part, it is necessary to unscrew the fastening nuts, disconnect the ignition and the rod from the engine control lever. Then the lever is removed. Then you can remove the filter and carburetor.

The muffler is secured with two nuts. You need to untwist them and pull the muffler towards you. Then the screws of the coil are unscrewed and dismantled. On the Stihl saw, the carburetor has 1 idle adjustment screw. If the idle speed is violated, then the carburetor needs repair. This is a complex process and difficult to do on your own. Contact a repair shop.

See also  How to Adjust the Performance of a Chainsaw. Adjusting a STIHL and Partner chain saw carburetor

Repair yourself or send to a service center

It should be understood that not every problem can be solved on your own. Not every owner of a chainsaw has a compressor at home or a special device that allows you to create a vacuum and the right pressure, for example, to check the crankcase for leaks. In this case, you simply cannot do without contacting specialized specialists.


In most cases, the following problems are encountered in engine operation:

  • the engine stopped starting;
  • the engine starts, but after a while it stalls;
  • the engine is not able to develop the required power;
  • the engine runs extremely unstable.

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.

Chainsaw chain lubrication system

One of the fundamental chainsaw systems, without which work is impossible, is the forced lubrication system of the chainsaw chain. It’s not a secret for anyone that at the time the saw is operating, the chain friction against the tire of the chainsaw, which causes it to heat up and premature wear. To soften friction, the chain mechanism must be constantly lubricated.

IMPORTANT. An experienced electrician has leaked into the network the secret of how to pay for electricity in half, a legal way. Read more

Identify startup problems for your device

There may be a problem when the 180 rest does not start. This usually happens due to a starter failure. In fact, the device does not start after pulling the cord.

Reasons for starter failure can be:

  • Spring vacation.
  • Broken or broken pulley.
  • Ribbon rope runs.

Before you find out the cause of the breakdown and start repairing the chainsaw starter, the chainsaw body is removed. To do this, unscrew the screws securing the starter cover.

In this case, use a screwdriver or special tool. Visual inspection of the starter reveals the reasons why the tool did not start.

Pulley damage from cracks and tears affects tool performance. Detection of mechanical faults or defects at the attachment point of the soft spring.

The attachment point, as well as the spring tip inserted into it, are vulnerable. If any parts of the starter are defective or damaged, replace them with new ones.

Dismantling and maintenance of the Stihl 180 chainsaw. Video

The device can be repaired with high quality in full compliance with the original parts of the chainsaw. The same scheme for replacing parts applies to self-saws.