I have a Lesco walk behind with a kawasaki FC420V engine. When I'm cutting on a hill with the mower and the highest part of the hill is on the right it will smoke bad every time, but when the highest part of the hill is on the left it never smokes. This is a fairly new engine (last season I was told). Is this a oil baffle problem? Does anyone have any idea? Any response would be appreciated. Thanks!!