Set the chain saw on a flat work bench.
Remove the two slotted pan head screws on top of the air filter cover located directly above the carburetor, in front of the throttle trigger. Slide out the air filter to expose the carburetor.
Slide the fuel line off from the right side of the carburetor. Slide the primer fuel line off the same side of the carburetor. Remove the spring clip from the end of the choke rod with the needle nose pliers. The choke rod is located on the same side as the fuel lines. Slide the choke rod out from the side of the carburetor.
Pull the throttle rod out of the throttle trigger on the bottom right of the carburetor, using the needle nose pliers. Remove the two flathead screws holding the carburetor to the engine block. Slide the carburetor off the two studs.