1974 Johnson 50 horsepower - no full throttle

MISSY2U

Recruit
Joined
Sep 21, 2003
Messages
2
Model #50ESL74M Serial #E4040917<br />Boat given to me with faulty motor - will not operate at full throttle. Coils have been replaced. Brother suggests replacing power pack next. Have not had chance to run motor yet; have to empty gas and refuel first. Please advise.
 

roscoe

Supreme Mariner
Joined
Oct 30, 2002
Messages
21,754
Re: 1974 Johnson 50 horsepower - no full throttle

Test for spark on all cylinders.<br />Examine sparkplugs for irregularities.<br />Get it running, then test drive it.<br />Report back with symptoms.<br />Have to determine if problem is fuel or ignition related, before and solutions can be pursued.
 
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