115 EFI water in oil

SBret1

Recruit
Joined
May 31, 2010
Messages
5
Happy fathersday all,
I have an 2004 115 EFI that I changed the oil on about 10 outings ago I checked the oil today and it seemed the level was higher than before so I decided to drain it well when I cracked open the plug about a 1/4 cup of pure crystal clear water came out I dont know if it was salt or not, then about a 1/4 cup of milky oil then clean oil came out, when I changed the oil I did not change the copper gasket on the plug and I have read something about a hot sun beating on the engine on the way to the ramp could have a vac effect when it hits the cold water, I dont know,,any opinions on what this could be, I thought if it was a head gasket the motor would run lousy but it runs very smooth I also pulled the plugs and they look fine.
 

Faztbullet

Supreme Mariner
Joined
Mar 2, 2008
Messages
15,931
Re: 115 EFI water in oil

Common problem on these engines as they run to cool, Yamahas fix for their motors was a ECU reprogam and hotter t-stat. Change the oil and filter and let engine idle longer(2-4 mins) before shutting down as this will reduce condensation in crankcase.
 
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