50 hp Evinrude

[Ranfy]

What would cause a 50 hp Evinrude be running good one minute then all of a sudden bogg down them I'll give some throttle to get it back up to speed and then a couple of minutes later it takes off flying

 

[racerone]

A 59 model ?---A 79 ?-----An 85 ?----2006 ?

 

[Ranfy]

A 59 model ?---A 79 ?-----An 85 ?----2006 ?

It's a 79 model

 

[racerone]

Water in the fuel ?----Hook up a timing light to see which cylinder might have intermittent spark.