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3hp Johnson SeaHorse 1967

dubber002

New member
"I just bought a 67' 3hp J

"I just bought a 67' 3hp Johnson. I do not know much about these engines, and am having a hard time trouble shooting it. For one it had been sitting for about 2 years in a dry basement. I put some mixed gas in it and changed the plugs, and it started right up. It runs good for a bit, dies out, then runs good again. It also doesn't seem to run as fast as it should, certainly doesnt sound as if it is, as the motor is not whining at all... Seems like my 34lb thrust trolling motor would outrun it as is?? Anything I can do to get a bit more out of it? Any help would be really appreciated."
 
you need to clean/rebuild the

you need to clean/rebuild the carbs and pay special attention to the holes and orifices.

and you probably need to change the water pump

and make sure the timer base is moving freely
 
Pull the flywheel and check fo

Pull the flywheel and check for cracked coils--- It may be running on one cylinder.
 
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