What is the H and L on a carburetor?
They are typically labeled L (low speed jet), H (high speed jet), and I (idler jet).
Is it illegal to own a carburetor adjustment tool?
it is illegal by EPA regulations to sell carburetor adjusting tools and illegal to buy them unless you are a servicing dealer.
How do you adjust a small engine carburetor?
Turn the high speed or main jet screw clockwise until the engine begins to slow. Then, turn the screw the other way until the engine begins to slow. Turn the screw back to the midpoint. Once adjusted, check engine acceleration by moving the throttle from idle to fast.
How do you reset a carburetor?
If the carburetor is new or has been rebuilt, you should set it to “factory” adjustment. You can do so by adjusting the idle mixture screws to 1.5-2 turns out, and the idle speed screw to 1-1.5 turns in. Warm the Engine Up. The engine’s running temperature directly correlates with proper air and fuel mixtures.
What does H and L mean on Stihl chainsaw?
Adjusting the L screw clockwise can cause the chain to engage while the saw is idling. Adjusting the H screw clockwise increases the maximum speed of the engine and can cause damage to your saw’s engine if its operating capacity is exceeded.