Well, after every run i end up with a lot of oil or fuel. Is this leaking from the engine? exhaust ? I've checked my fuel lines and they dont seem to be leaking. By the way I'm using a Vulcan SE 1/16th ~ stock

Thanks in advance

Some oil and unburnt fuel leaking out of the stinger is normal afterwards, especially if it's tuned somewhat on the rich side. A small amount passing through the front bearing is also ok - it keeps it lubricated.

Post a pic of where the oil is, shouldn't be difficult to determine where it's coming from.