Game Fisher 7.5

[Viking]

I was recently given a 7.5hp Game Fisher outboard. I'm told it needs a new coil but the spark plug is also missing. Anyone know where to get parts and maybe an owners manual? Numbers on the Tecumseh motor are 640-18A and 9068. Anyone have any idea how old it is? I imagine any small engine shop would have parts but I'd like to get a manual for it. I used to have a Game Fisher 9.9. It was a great motor. Kept it stored on a two wheel dolley in my garage. %@#@% thieves took cart and all. Thanks for any help. Mike