I bought an old Evinrude 7.5 Fleetwin this summer and am just now getting around to working on it. The motor looks unbelieveable... almost like new and super clean. When I got it started in a garbage can, it is clear to see oil is coming from exhaust. Actually, I think it was unburnt gas because it smells like gas. I started it with each cylinder (unplugged one coil each time) and both are working. I originally thought maybe one cyl. wasn't firing. I am still getting the gas/oil from the exhaust. Also, while it starts, it will not idle and it seems to have very little power. Any thoughts???