A friend of mine gifted me a John Deere RX75 mower, Kawasaki FC290V engine, which hadn't run in 2 years. After fixing the starter, charging the battery, cleaning some gunk from the carburetor, and draining the 2 year old gas, I got it running yesterday. When it first started it made some noticeable plumes of smoke, but after a minute or so it cleared up. Runs great, but when I started it today, there was still some noticeable smoke. It's maybe an 1/8" over the full mark on the dipstick (I plan to change the oil anyway), but could that be all it is? Maybe when it's on the full side the oil seeps past the rings?