FLOAT BOWL, W/PORT. Adds an overflow stand pipe so that if the carburetor were to overflow, the fuel would end up on the floor instead of inside the airbox & engine, and a main jet access port, which facilitates main jet changes without removing the float bowl/disturbing the float. 13247-32210 PLUG, DRAIN or MIK0111112010 MAIN JET ACCESS PORT PLUG, MACHINED and 13249-41310-V O-RING, FKM must be purchased separately.