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Understanding the L and H Markings on Petrol Saw Carburetors

ramhac 342224 4
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Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
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  • #1 6779637
    ramhac
    Level 16  
    Hello, I have a question about the petrol saws on the carburetor, there are two screws to adjust, one is the letter L and the other H, what is the matter with these markings? I would like to ask for some information.
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    #2 6779722
    Spacewalker
    Level 33  
    L-low speed - i.e. slow spins gerulation
    H-High speed - i.e. high speed regulation.
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    #3 6779733
    karola44-81
    Level 27  
    LOW and HIGH? I'm not sure, but they set the engine speed. L is used to set the idle speed. The point is that the saw has a centrifugal clutch. And it cannot be turned on when the engine is running at idle speed. So these rotations need to be adjusted.

    H is nothing else than the regulation of the mixture, and thus the max speed of the knife and probably the maximal power are set.
    the maximum speed of the saw shaft is cos olo 18000.min. So big.
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    #4 6779794
    Czybyszew
    Level 20  
    L - adjustment of the mixture composition at idle speed
    H -adjusting the composition of the mixture at high speed

    The point is that there are two throttles inside the carburetor: the starting throttle (the so-called choke) and the main throttle to control the engine speed. With these H and L screws you adjust the fuel / air ratio correspondingly for each throttle.

    And to adjust the idle speed, the third screw - T is usually used
  • #5 6779878
    ramhac
    Level 16  
    Many thanks for the information ;)
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