1976 75 hp crysler boat motor

head gasket?

Im assuming that this is one of the old CHryslewr Outboards and not a V-8> If it is then you should be getting some oil dumping out of the exhaust and into the water.This is a 2 cycle engine yes?

If not then it is a problem.

I'm guessing outboard as well, and my only real experience with them is driving them.

(I got a lawn mower guy)

I dont know , but since the only Chrysler Outboards Ive seen were before they got together with OBM engines in the 80's. The ones I saw were all 2 cycle so , as youd know, youd expect oil in the exhaust (Now as far as amount of oil , maybe this guys running it at too rich a mixture so as not to burn up his plugs).

I used to do that with little OBs that I used on a tender ZODIAC. I used little 25 hp motors and Id always run em rich. Id have a veritable oil slick followin me. Every so often the plugs 'd foul and Id have to pull the engine up and degunk the plugs

ED, you running the mix too rich?