UMC Posted May 6, 2012 Share Posted May 6, 2012 I have a 2002 Yamaha 60 hp outboard that I've noticed gives off some white smoke upon starting, usually only on the first start of the day. Also, I've had to add a little oil after every trip or two (1-2 ounces) to keep it at the top of the dipstick, and in previous years I don't remember hardly ever having to add oil. In doing some searching online, most seem to point to a bad headgasket as the cause of the smoke. Does that sounds about right and what am I likely looking at for $$$? Thanks Quote Link to comment Share on other sites More sharing options...
boatfixer Posted May 8, 2012 Share Posted May 8, 2012 White smoke is steam. Usually a sign of water in a cylinder. Pull the spark plugs and check for water by taking the plug and "tapping" the electrode end into the palm of your hand. The water will bead up. Quote Link to comment Share on other sites More sharing options...
UMC Posted May 8, 2012 Author Share Posted May 8, 2012 And if there is water in the cylinders, what does that mean? Some sort of seal/gasket is bad? I'm not very motor literate. Quote Link to comment Share on other sites More sharing options...
delcecchi Posted May 8, 2012 Share Posted May 8, 2012 And if there is water in the cylinders, what does that mean? Some sort of seal/gasket is bad? I'm not very motor literate. In a car it would be a head gasket,or a cracked head most likely. I don't know if there is anything else in an outboard that could be leaking. Quote Link to comment Share on other sites More sharing options...
Sonicrunch Posted May 9, 2012 Share Posted May 9, 2012 In a car it would be a head gasket,or a cracked head most likely. I don't know if there is anything else in an outboard that could be leaking. That would be my first guess too. Quote Link to comment Share on other sites More sharing options...
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