कार्बोरेटर कनेक्शन

Hello, I am new and it is my first car and I have a small problem my car is a Mazda 323 1.6 16 carbure valves year 1992, and in the carburetor it has an electric heater and I do not know where it is connected I would like to know if someone from the forum could help me I send them a reference image, they are appreciated from before hand before hand