Zama type carburetor for Stihl chainsaws models MS170, MS180, 017, 018

Origin: STIHL: 11301200603, C1Q-S57 This Zama-type replacement carburetor fits Stihl MS 170, MS 180, 017, or 018 chainsaws. The chainsaw carburetor: a key component In your chainsaw, the carburetor's function is to ensure the production of a crucial mixture: fuel (gasoline) and oxidizer (air), which then ignites to help the spark plug ignite and transmit energy to the engine. This part also manages the air-fuel ratio before it enters the combustion chamber. It is therefore absolutely essential for starting the internal combustion engine. Easily replace the carburetor on your Stihl chainsaw When a carburetor is out of adjustment or defective, it can unbalance the fuel/air ratio of the combustion mixture. As a result, the chainsaw becomes abnormally noisy, won't start, emits smoke, or lacks power. The same applies to a dirty carburetor. We recommend cleaning it with a cloth and brush, then greasing it thoroughly. If the part is beyond repair, replace it with this replacement carburetor for Stihl MS170, MS180, 017, or 018 chainsaws. Adjusting the mixture screws Once you have changed your Stihl chainsaw carburetor, check the condition of the gasket that connects it to the cylinder. Next, adjust the part using a flathead screwdriver. There are two mixture screws on this carburetor: - the L screw (for "low" or "low RPM"), and - the H screw (for "high" or "high RPM"). Start by tightening both screws fully, then unscrew them two turns. From this default position, you can fine-tune your adjustment by ear. Simply start your garden machinery, listen to the sounds it makes, and make half-turns of the screw according to what you hear. For example: - if the Stihl chainsaw engine stalls before acceleration, slightly unscrew the "low" screw to enrich the mixture. - if, on the other hand, it stalls after acceleration, this means there is too much fuel and the "low" screw needs to be tightened. Don't hesitate Consult the technical documentation for your chainsaw. You will generally find valuable information there on carburetor settings. Have you lost your manual? The manufacturer may allow you to download it from their official website in PDF format.