Welcome to the new Wizard Outboard Forum.
Looking for a service manual for my 1958 Oliver J-4 which is the same as the Wizard 5 1/2 H.P. of the same year. I'll be glad to pay for a copy + shipping.
Try Ed Jeter from the Oliver website. He may be able to help you.
By the way, I saw your J4 when Doug dropped off my motors. She's a beauty!