Welcome to the new Wizard Outboard Forum.
to who can answer my ? i have what i was told a wizard motor model wg4 s/s number 45z790 is this a wizard motor if not can you please tell me what it is i thank you for your time
If the serial numbers are between 450696-458195, which it appears to be, it is a 1951
Yours is a 1951 6hp. motor built by Mercury. It should be light green in color.
I have a parts diagram uploaded in the forum. just search for "Wizard Literature" and it should come up.