Recently purchased 2001 1860 jon boat with a 70 hp 1981 Johnson

aps71285

Seaman Apprentice
Joined
Jun 17, 2015
Messages
34
Just wondering what probs i should expect and mainly what is my top rpm at WOT
 

jbcurt00

Moderator
Staff member
Joined
Oct 25, 2011
Messages
25,225
Do you have an induction tach?

What prop is on the motor now?
 

flyingscott

Fleet Admiral
Joined
Apr 8, 2014
Messages
8,284
The max RPM for that motor is 5500. Change the water pump regularly and other maintenance and you should be good to go. They are a really good motor just take care of it.
 

steelespike

Supreme Mariner
Joined
Apr 26, 2002
Messages
19,069
If you get us the prop size(under the prop nut)The lightly loaded wot rpm and gps speed We can tell you if the setup works.
 

tommarvin

Ensign
Joined
Nov 22, 2015
Messages
999
I would get the boat planning, and throttle back all you can to stay planning. If you want the motor to last a long time.

Never run anything WOT if you want it to last,and you save fuel too.
 
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