1987 evinrude 88spl loss of compression on all cylinders

Boater420

Cadet
Joined
Dec 14, 2013
Messages
14
Ok so i about 7 months ago my father passed away and i stoped going out on my boat. I pulled it out last mouth and took it out and it was ok for one trip. On the next trip i lost spark. I replaced the trigger and it started for a minute then just shut off. I now cannot get it to start. I have a nice blue spark and timing is correct. So i just checked the compression and all four cylinders are at 60psi. before i had 118-121. What will cause me to lose compression to all cylinders at once?
 

boobie

Supreme Mariner
Joined
Nov 5, 2009
Messages
20,826
Re: 1987 evinrude 88spl loss of compression on all cylinders

Before you run off in the heat of the day, try a good known compression tester.
 

boobie

Supreme Mariner
Joined
Nov 5, 2009
Messages
20,826
Re: 1987 evinrude 88spl loss of compression on all cylinders

Will the spark jump a 7/16" open air gap on a spark tester ??
 

boobie

Supreme Mariner
Joined
Nov 5, 2009
Messages
20,826
Re: 1987 evinrude 88spl loss of compression on all cylinders

Better look into the fuel system. Fuel lines carbs and ect.
 
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