Install the jets into the carburetor with a Phillips screwdriver.
Replace the high speed needle near the top of the carburetor with the screwdriver.
Set the carburetor on the engine where it is mounted and slip the two hex bolts through the holes at the ends of the carburetor body. Tighten these hex bolts down with the Allen wrench.
Slip the fuel lines onto the carburetor ports with a pair of needle-nose pliers.
Set the throttle links through the small hole on the carburetor's control arm.
Place the air filter holder and the filter in place over the carburetor and insert the mounting screw. Tighten the screw with a screwdriver.