Carburetor Kit For Husqvarna 50 51 55 rancher Chainsaw # Replace 503 28 15 04 WT-170-1 WT-170

Adjusters on carburetors

● Drain screw: used to drain the fuel out of the carburetor.
● Idle mixture screw: controls the intake of fuel to adjust the engine for optimum running.
● Idle speed screw: controls the intake of air to adjust the engine’s idle speed.
● High-speed screw: adjustment for high speed.
● Low-speed screw: adjustment for low speed.
● Turn clockwise to decrease the RPM (revolutions per minute) while turning counterclockwise is for increasing the RPM. The amplitude for each adjustment is 1/4 turn.