Homelite Chainsaw Idle Adjustment Set the idle speed screw by adjusting the screw marked “T.” If the chainsaw starts and runs without idling, turn the screw clockwise to increase the idle speed. If the chain moves while the chainsaw is idling, turn the screw counterclockwise instead.Click to see full answer. Also asked, how do you adjust the idle on a chainsaw? Carburetor Adjustment Procedure Before you start the saw, locate a small flat-bladed screwdriver. Begin by checking the saw’s air filter. Check the fuel level. Start the engine and warm it up. Begin by setting the idle speed. Set the low speed fuel adjustment. Go back to step (4) and reset the idle speed. Beside above, how do you adjust a carburetor? Carb Quick Guide Verify carburetor is set to stock settings: Start bike, bring to operating temperature. Set idle speed adjusting screw, clockwise to increase rpm, counter-clockwise to decrease rpm. Adjust idle mixture by turning idle mixture screw slowly clockwise until the engine runs poorly. Considering this, what does the L and H mean on a chainsaw? “On every saw the “h” means that’s the “high” side adjustment. It regulates the fuel/air mixture that is being passed into the motor during high rpm’s. The “L” means that’s the “low” side adjustment. It regulates the fuel/air mixture that is being passed in the motor around the low rpm’s”How do you adjust the carburetor on a Homelite trimmer? How to Adjust the Carb on a Homelite Blower Place the blower on a flat workbench. Locate the three adjustment screws found on the side of the carburetor, just below the air filter. Turn the “L” screw clockwise until the screw seats with the screwdriver. Turn the “H” screw clockwise until the screw seats. Rev the engine.