Help with an Avenger Boat!! It has a Mercury 85hp outboard Motor that needs help!?

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little-co-co

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It's a 1971 It has a 85hp Mercury Marine Marathon 850 Motor. It doesn't start and looks like it has a lot of issues. There were some exposed wires and the Thunderbolt ignition looked crazily corroded with rock or sand, Anyways, should I buy a new ignition box and try to fix the thing or try to find a new motor.

Oh and the motor isn't attached to the wireing harness very well, it isn't conected to the "go" lever or control. It's a major project, but I want to know if it seems like a possible project.
Any imput would be cool, Thanks!!
My boyfriend is a mechanic with cars so he's going to give it a try on a boat. But we're a bit lost on this one.
 
Sorry to say this but I think you have a hopeless case on your hands

After all it is a 37 year old engine even if you could fine the parts you'd pay a premium for them. there are manuals available on the internet

http://www.clymer.com/Book.aspx?bid=627&title=Mercury+3.9+-+135+HP+Outboards%2C+1964-1971
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