No it isnt oil residue it is most certainly a bit melted and burnt. I need to update my profile as I just got the bike. I moved to Sweden so I am not in NJ anymore sorry for the fake out. My original superduke was a standard 990 2008 model, all the essential mods done. It was the only thing I did not sell when I moved here as I planned on shipping it but when i went home for a visa paperwork, I was T boned at an intersection by a texting driver. Wrecked it. I thought I might never ride again or at best offroad/ ADV. That is until the local dealer got a 2010 SDR in with 10,000 on the clock. I put off going to see it for two weeks because I knew I would buy it. Went in, and fook walked out with it. My Fiancee is fookin thrilled as I my last accident was right after we met each other and she now hates bikes lol.