recommended prop for 1972 80 hp mercury mariner marathon?

kjw1

Recruit
Joined
May 7, 2015
Messages
1
I can't seem to find the correct/optimum prop specs for this engine, even though I have the service and repair manual there seems to be no reference to prop size/pitch/rotation ........ if anyone has any idea I would be grateful :-D
 

steelespike

Supreme Mariner
Joined
Apr 26, 2002
Messages
19,069
Welcome
Is there a prop on the motor now?Number may be near the base of the blades or under the prop nut.
Scroll up to the top of the page parts and accessories tab.just put the curser over it it will drop down click on propellers.
We need the details about your boat and your typical load and activities.
You will need a working tach and a gps for speed.
 
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