Shaft length

Platypus

Cadet
Joined
Jan 7, 2005
Messages
7
I am buying a 7-10 hp motor for my 12' jon boat. The transom is about 17". Should I go with a short or long shaft?
 

EZLoader

Chief Petty Officer
Joined
Sep 28, 2005
Messages
456
Re: Shaft length

The flat cavitation plate above the prop should be fairly in line with the bottom of the boat. A 15" short shaft will be 2" too short, a 20" long shaft 3" too long. With the long shaft you could shorten it at the transom if necessary.
 
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