1987 Johnson GT150 skipping at higher speeds

M

MColbert

Recruit
Joined
Jul 14, 2013
Messages
1
I have recently started having a problem with my 1987 Johnson GT150. It'll start and idle just fine and even for the first 20 or so minutes of riding it does great at all speeds. Once its warmed up good and I try to go to 3/4 throttle or greater it begins to shut off and on. It doesn't bog likes its a carb problem but just suddenly cuts off and on. Does this sound like the power packs or what?
 
Bosunsmate

Bosunsmate

Admiral
Joined
Apr 7, 2012
Messages
6,129
Re: 1987 Johnson GT150 skipping at higher speeds

It could be.
Check your stator resistance and output too if possible. Also look for any cracks on it.
 
B

boobie

Supreme Mariner
Joined
Nov 5, 2009
Messages
20,826
Re: 1987 Johnson GT150 skipping at higher speeds

Sounds like ignition problem. Go to cdielectronics.com for troubling shooting procedures.
 
E

emdsapmgr

Supreme Mariner
Joined
Dec 9, 2005
Messages
11,551
Re: 1987 Johnson GT150 skipping at higher speeds

Pull the flywheel and check so see if the magnets are still firmly in place.
 
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