Need help. I noticed a stain in my drive way after taking a break from riding. There is a fluid leaking from one of the two drain tubes. It has the smell of gas, but has the tint and texture of oil. the bike is a 2008 cbr600rr, w/5000 miles. Oil is changed every 2000 miles and i use 3 quarts of amsoil 10w-40. I don't know if it is relevant but I just installed a 2 bros. slip-on a week ago. Any help is greatly appreciated.