How to Disassemble a Gas Handle On a Chainsaw

Without a chainsaw now in the household can no longer do. The most popular model for household use is the Partner 350 saw. It is easy to operate and available for purchase. But it will last longer if you repair Partner chainsaws in time, lubricate parts and use high-quality fuel.

how to disassemble the gas handle on a chainsaw

How to start a chainsaw

The effectiveness of any tool depends on compliance with the rules for its use. First of all, it concerns the launch. You need to do this in the following sequence:

  1. Start the chain brake, for which it must be pressed in the forward direction.
  2. Remove the protective cover from the tire, if equipped.
  3. Turn on the decompression valve, which will facilitate the start-up process.
  4. Press on the fuel inlet. This is necessary to reduce the number of paging.
  5. Set the combined lever to the idle mode all the way down, having previously blocked the gas lever.
  6. Place the tool on a flat surface, take the chainsaw with both hands so that its cutting part is located at a distance from this surface. At the same time, place the left hand on the handle, and the right hand at the starter cable. The tool needs to be fixed with a foot, for which you can simply step on the rear handle.
  7. Now the starter cable must first be pulled, and then pulled several times. In this case, you need to move upward from the body.
  8. As a result of a short start, the motor will stall. Therefore, after this, the combined lever must be moved one click up, and then repeat the start.
  9. If the engine is running, you need to press the throttle lever, and put the combined lever into idle mode.
  10. Now the chain brake needs to be removed and you can start using the tool.

Despite the simplicity of the process, situations may arise when the chainsaw still does not start. The reasons are not always related to the breakdown of the tool. Perhaps just not enough force was applied. If, however, after several attempts, the launch was unsuccessful, it is worth conducting a thorough inspection of the device.

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Diagnostics and troubleshooting

The effectiveness of the repair also depends on the correct diagnosis, because a quick identification of the problem will save time on repair work. If the Partner chainsaw does not work, then the diagnosis is performed in three stages:

  • spark test;
  • checking for fuel in the cylinder;
  • bearing diagnostics.

Most often, chainsaw malfunctions are associated with the fact that there is nothing to burn, or nothing to burn. Therefore, you first need to check the candle, for which it needs to be unscrewed, and the wire attached to the cylinder, and then pull the starter. The spark may be absent due to defective spark plugs, wire breaks in the power supply circuit, malfunction of the ignition button or lack of a gap between the flywheel and the coil (a flywheel key breakage from the crankshaft is also possible). Due to the lack of spark, a chainsaw may start, but will immediately stall when a gas is pressed.

If there is a spark, then the fuel system requires verification, especially if it is found that the candle is dry. Diagnosis is as follows. Through the spark plug hole, pour 5 ml of fuel, and then start the saw. If the launch is unsuccessful, then the wear of the CPG, the ingress of a foreign body into it is possible. If the saw starts up, then the problem may be the malfunction of the carburetor or the fuel line.

Video: How to Disassemble a Gas Handle On a Chainsaw


Partner Chainsaw diagnostics also include a check of the crankshaft bearing clearance. To do this, the flywheel must be moved in different directions. If there is a gap, then the bearings must be changed.

Other malfunctions are possible, which you can solve yourself. For example, the saw is not gaining momentum or the chain is not lubricated. The first problem is due to improper carburetor adjustment, and the second is due to clogged hoses or insufficient oil in the fuel mixture.

How to set up a chainsaw

Adjustment of the carburetor of the chainsaw is carried out in order to set the optimal number of revolutions for the effective operation of the tool. It is performed by adjusting the three main bolts:

  • L. is responsible for setting the lower revs;
  • H. upper revolutions;
  • T. idle setting.
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Some models have only one screw, the last one.

You can adjust the chainsaw only with the first two bolts. If the number of revolutions needs to be reduced, then they are rotated clockwise, if increased, they are opposed. In this case, first turn the first bolt (L), and then the second (H).

Additionally, you need to set the ignition. This work is carried out if the saw does not start or began to work intermittently. To do this, you either need to replace the candle, or fix the wire break.

Also, the reason may lie in the incorrectly set ignition angle.

A similar problem leads to the fact that a spark appears either before the fuel is supplied, or after a large gap after that. The desired parameter can be found in the operating manual of the chainsaw. Setting the ignition angle will help solve the problem.

DIY repair

Not all chainsaw malfunctions are associated with a carburetor breakdown or improper adjustment. In this case, you will have to repair the Partner chainsaw yourself, which is easy if the tool is available. This work is carried out in several stages, which depends on the cause and nature of the breakdown:

  1. Problems with the fuel system. This is most often due to contamination of the fuel filter or breather. In the first case, it is necessary to remove the fuel hose and clean it. It must be washed and thoroughly dried before re-installation. As a preventive measure, it is recommended to change the fuel filter every three months. Additionally, it may be necessary to clean the breather, for which it is convenient to use a needle or thin wire. The air damper is similarly cleaned.
  2. Partner carburetor repair. Not always adjustment leads to the desired result. The cause may be clogged channels. To eliminate blockage, compressed air can be used. It must be remembered that reassembly is allowed only with clean and dry parts.
  3. Silencer cleaning. If you need to repair the chainsaw in the case when the tool begins to stall at high speeds, you will have to disassemble and clean the muffler. To do this, the part must be removed, unscrew all the bolts and disassemble. After that, using simple detergents to remove carbon from all surfaces, and then thoroughly dry, you can blow dryer. In no case should you remove the carbon deposits in a dry way, since it contains substances hazardous to health that cannot be inhaled.
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complex malfunctions are possible, for example, wear of the piston and crank mechanism, which cannot be eliminated on their own. Therefore, sometimes you have to turn to specialists for help.

How to disassemble a chainsaw

Chainsaws can only be repaired after the tool has been disassembled. It must be done as carefully as possible, while it is recommended that each part be cleaned with a detergent and thoroughly dried. Only then can the tool be assembled.

How to remove an asterisk

To access the chainsaw sprocket, you must:

  1. Remove the crankcase cover, chain headset and tire, and then the air filter.
  2. Unscrew spark plug, insert piston stopper instead.
  3. Unscrew the clutch by first installing the puller in the hole for the universal key. This will allow access to the asterisk, after which the latter can be removed.

After the defective part has been removed, do-it-yourself sprockets can be replaced.

How to replace the oil pump

Removing the oil pump occurs in the following sequence:

  1. Remove the chain headset and then unscrew the bolts that secure the chain guide to the housing.
  2. Now you need to remove the pump and divide it into two parts, then remove the gasket and put a new one in its place.

If this does not correct the problem, then the oil pump must be replaced. All assembly steps must be performed in reverse order.

The ratio of gasoline to oil

The Partner chainsaw is intended for domestic use, therefore, the requirements for it are reduced. In particular, for the preparation of a fuel mixture for a tool, the following proportions of gasoline and oil are required: 40 parts of gasoline and 1 part of oil, that is, 25 ml of lubricant must be added per 1 liter of fuel.