milky spark plugs

[stevewelling]

have a question on 1983 Johnson 115 hp fished for 2 weeks on st Lawrence river, motor ran great for whole trip. when I got home I checked plugs as I had installed new ones before I left, noticed a drop of milky substance on both plugs on the bottom cylinders. is this just condensation or should i look for another problem? thank you for any help

 

[Docksidemarineservices]

Make sure it's getting up to running temp.

 

[joereeves]

Do a compression check on all cylinders to help determine if the head gaskets might be failing.

Check that bottom carburetor to see if any water might be present in the float chamber.

Could be that your engine is sitting a little too low in the water, but the two above check points are worth while looking into.

 

[Boobie]

Exhaust cover gaskets or plate may be leaking.

 

[stevewelling]

Do a compression check on all cylinders to help determine if the head gaskets might be failing.

Check that bottom carburetor to see if any water might be present in the float chamber.

Could be that your engine is sitting a little too low in the water, but the two above check points are worth while looking into.

thanks for the suggestions men. I will take compression and go from there. thanks again stevewelling

 

[Docksidemarineservices]

Make sure it's getting up to running temp.

If it is not getting up to running temp, it will condensate water in the combustion chambers and wet the plugs.


This is your starting point.