Repair calm 180 do-it-yourself carburetor fills

In detail: do-it-yourself repair of the calm 180 fills the carburetor from a real master for the site my.housecope.com.

Chainsaw Calm 180 - device and adjustment of the carburetor

Chainsaws stihl ms 180 are designed in such a way as to make their operation as easy as possible for inexperienced users. To do this, some of the settings available on more powerful Stihl models were abolished in the saw carburetor. But there is still an opportunity to set it up, and repair, as well as do-it-yourself adjustment of the carburetor of the Stihl 180 chainsaw, is possible.

Image - Do-it-yourself repair of calm 180 fills the carburetor

To begin with, it is worth deciding why it may be necessary to adjust and repair the stihl ms 180 carburetor at all. So, this must be done in the following cases:

  • if the chainsaw does not keep idle;
  • repairs may be required if the saw does not start;
  • there is a loss of power;
  • increased fuel consumption;
  • the chainsaw does not develop maximum speed.
  • stalls when revving.

This list can be continued for a long time, but we have identified the main reasons. Before proceeding with the adjustment, you need to know what main parts it consists of carburetor on a Stihl 180 chainsaw, and who makes it.

So, the stihl ms 180 carburetor is designed and manufactured by a subsidiary of Stihl, called Zama. Original carburetors have a company logo on their body, which guarantees product quality.

A fuel pump is installed directly in the carburetor body, which operates under the action of an air pulse from the chainsaw crankcase, transmitted through special channels. A diaphragm is installed in the pump, it is she who is responsible for pumping fuel under the action of an impulse. A gasket is installed between the diaphragm and the housing, which is responsible for the tightness of the fuel pump.

Video (click to play).

In the distribution chamber, as well as in the fuel pump, there is also a membrane that opens and regulates the fuel supply by pressing a special rocker, while raising its needle valve.

Image - Do-it-yourself repair of calm 180 fills the carburetor

The chamber cover is the compensator body, which is attached to the carburetor with four screws; a gasket is installed between the body and the cover, which increases the height of the chamber and is responsible for sealing.

The fuel supply nozzle is mounted in the carburetor body in such a way that it is a connecting link between the distribution chamber and the cavity in which the throttle valve is installed. Simultaneously with the fuel, air is supplied to the nozzle and an air mixture is formed. The nozzle has a check valve that blocks the flow of air in reverse order, that is, from the throttle chamber to the distribution chamber.

The throttle valve is installed in the carburetor body and is responsible for increasing the supply of the fuel mixture directly to the engine cylinder. At the moment of pressing the gas, the throttle valve opens slightly, thereby increasing the throughput of the channel and the fuel from the carburetor cavity, rushes into the cylinder in a larger volume.

Image - Do-it-yourself repair of calm 180 fills the carburetor

The combustion of a larger volume of fuel increases the amount of energy generated, which affects the power and speed of the processes. The damper is mounted on a shaft passing through the entire body of the carburetor. At the exit of the shaft from the housing, a mount for the gas cable is installed, next to it is a cone-shaped, adjusting screw responsible for setting the idle speed. By tightening the screw, you can slightly adjust the position of the shaft and the damper installed on it, thereby increasing or decreasing the idle speed, slightly opening or vice versa closing the damper.

How to repair carburetor on a chainsaw Calm ms 180.