Hello everyone. I'm doing some maintenance on a 00 zx6r and when I pulled the spark plugs last night the far left plug had oil on it. Is this something I should be worried about? My sister-in-law just bought the bike a couple weeks ago so we don't know a lot about the history of the bike. The bike does have a shorter kick stand on it so it leans more than normal when on the kick stand. Could this be the reason for the oil on the spark plug? Thanks for you help