How do you adjust the fuel mixture on a Stihl chainsaw?
How do you adjust the fuel mixture on a Stihl chainsaw?
They are the high-speed, low-speed and idle adjustments respectively. Determine the carburetor type before adjusting the high- and low-speed screws. To do this, turn the “L” screw clockwise as far as it will go, using a flat-head screwdriver, then turn it counterclockwise as far as it will go.
How do you adjust the H and L on a Stihl chainsaw?
On many models of Stihl chainsaws, the L and H screws are marked, but the LA screw is not.
- Engage the chain brake on your saw and place it on the ground.
- Rotate the LA screw clockwise while the engine is running.
- Turn the screw until the chain begins to move and then stop.
What does H and L mean on Stihl chainsaw?
One marked “H”, for high speed, one marked “L”, for low speed and one marked “LA”, which is your low speed air adjustment for idle.
How do you Richen carbs?
To richen the idle, loosen all 4 screws equally about ¼ – ½ turn each. Re-check idle quality and repeat as needed. If the idle is too rich initially, you will need to lean the idle by tightening the 4 screws equally about ¼ – ½ turn each. Re-check idle quality and repeat as needed.
How do you adjust the carburetor on a Stihl Chainsaw?
Stihl Chainsaw Carburetor Adjustment. Screws (H) & (L) – Turn the adjustment Screws (H) & (L) down onto their seats (clockwise). Back them off 1 complete turn (counter-clockwise) Screw (LA) – Turn (LA) Idle Speed screw until the chain stops. Then turn counter-clockwise one quarter of a turn.
Does Stihl make any changes to their products?
STIHL’s philosophy is to continually improve all of its products. As a result, engineering changes and improvements are made from time-to-time. If the operating characteristics or the appearance of your saw differs from those described in this Manual, please contact your STIHL dealer for informations and assistance.
How do you adjust the carburetor on a pro saw?
It is best to use a digital tachometer when adjusting the carburetor on a pro saw. These tachs are easy to use and require no wires. When the tach is placed near the spark plug, it picks up an electrical signal when the plug fires.
