I have a 1995 suzuki dt115. i'm getting water in my lower cylinder. When I pull my bottom plug it has brown oil slude on it. I have changed the head gasket. the old gasket looked fine when I pulled it off. What should I check next. I have only had the engine about 4 months. it ran fine then one day it didn't have the power to get the boat on plane. Thats when I checked the plugs out. Thanks for the help guys if you need more info let me know and i'll get it for you. I can also get pics of the plug if need it