Mercury Outboard Compatibility?

Nancy12

Recruit
Joined
Sep 12, 2008
Messages
1
I just bought a mercury outboard, 2 stroke, 1989, 100hp. Can I use parts from a mercury outboard, 2 stroke, 1972, 140hp. Are any parts compatible or should I get rid of the 140hp. Maybe I can get a few hundred dollars for it.
 

achris

More fish than mountain goat
Joined
May 19, 2004
Messages
27,468
Re: Mercury Outboard Compatibility?

No part similarities at all... Not even the spark plugs...
 

Chris1956

Supreme Mariner
Joined
Mar 25, 2004
Messages
27,142
Re: Mercury Outboard Compatibility?

Achris, The '72 Merc's midsection has two studs that hold the gearcase on. These are compatable. Other than that.....

Actually the control cables and steering will work, but the wiring harness is likely not compatable. The key switch will also work, if you change the boat wiring harness.
 
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