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1986 40 horse yamaha water in top 2 cylinders

springhilltony

New member
when i got this motor i knew i

when i got this motor i knew it needed the carbs rebuilt so i did it.ran very well.got water in my fuel and took carbs off and cleaned them .motor ran slugish and didnt want to idle.changed plugs didnt run any better.took out new plugs the top and middle cylinder had water on the plugs .blew out cylinder and plugs installed cranked again ran for 2 mins.pulled out plugs both had water again.in haste i pulled head before compression check.head gasket looked perfect.any ideas as to where the water is coming from r any test i can perform to determine where its coming from
 
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