67 Johnson Seahorse stopped running

miklor73

Cadet
Joined
May 11, 2009
Messages
17
Ihave a 67 seahorse, model # CD-24D. I was out on the lake yesterday, motoring along, when the motor just kind of wound down to nothing, at wot, and died. Any help would be appreciated. Had a full tank of fuel, getting fuel, just won't run. I can get it started for a minute, but it sounds like its running on one cylinder. I put a spark tester on it, has spark on both cylinders while running.:mad:
 

lindy46

Captain
Joined
Nov 27, 2008
Messages
3,886
Re: 67 Johnson Seahorse stopped running

Could be a bad coil - shorting out when it gets hot. You would have spark at idle but not at WOT. Have you tried pumping the bulb when it starts dieing? If pumping keeps it running, look at the fuel pump. More likely the coil, though.
 
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