loss of power

A

amontie4

Cadet
Joined
Oct 23, 2010
Messages
7
I recently bought a boat with a 1968 40hp evinrude lark x. It runs fine until you get past 3/4 throttle then the motor losses power for a second or two, kind of like it's going to stall then the power returns for a while then it happens again and continues this until I bring the throttle down. I was wondering if you guys think it's the carb or something else?

Thanks
 
lindy46

lindy46

Captain
Joined
Nov 27, 2008
Messages
3,886
Re: loss of power

Check spark first. May be cutting out on one cylinder (bad coil, points condenser). It'll run halfway decent at lower speeds on one cylinder, but not at full speed.
 
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