full throttle / half the power- Johnson

showme219

Cadet
Joined
Aug 25, 2002
Messages
8
I'm new here, new to this POS motor too !!!! Johnson Elect-Seahorse Early 70's model.....75 HP (Will verify that!)<br /><br />To explain....<br />Motor seemed to run great in a barrel. Smooth idle, and smooth response during accel up to WOT.<br />BUT when I put it in the water I realize that the thing only provides about 10-20 % of the expected power.<br />Would surge slightly and "try" to wind-up. but that's all.<br />The thing isn't reaching full throttle, I can't check rpm's yet, but compared to other motors I have had, it simply doesn't "Wind-up" and GO !!!<br /><br /> :confused:
 

JB

Honorary Moderator Emeritus
Joined
Mar 25, 2001
Messages
45,907
Re: full throttle / half the power- Johnson

Howdy, Bilge pump.<br /><br />Do a search for no power under load. You will have a bunch of threads with plenty of advice.<br /><br />Good luck. :)
 

showme219

Cadet
Joined
Aug 25, 2002
Messages
8
Re: full throttle / half the power- Johnson

Thanks JB... was trying several keywords, hadn't thought of the obvious !!!<br />Will check 'em out !<br /><br />Steve
 

Chum Slick

Petty Officer 2nd Class
Joined
Aug 7, 2001
Messages
116
Re: full throttle / half the power- Johnson

Check carbs, sounds like a good cleaning and new needle and seats may be in order.
 
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