Welcome to the new Wizard Outboard Forum.
Thanks to Skip Hagerman's antique outboard website: Here's a link to the Mercury KG-7 owner's manual. It is the companion to the Wizard WG-7 and WG-7A.
I just wanted to bring this forward for the new guys on the forum.
I found this today. Lot's of good information: http://johnsoldmercurysite.com/whitepapers/manuals/MARK%206.pdf
1961 Wizard 60 HP Parts Manual made by Scott Atwater Found in the library at http://www.fiberglassics.com/.
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Having a hard time finding an impeller for the water pump in the lower unit
Try Ferguson Poole for a Wizard impeller http://www.fergusonpoolemarine.com/enginecoolingsystem.html