its not light or dark its like a medium grey colour,i think the prop is blowing it through the holes in the fire wall but where the oil is coming from
i dont know but its not from the carb seal,the engine is fitted upside down,im more concerned that i cant get the engine to throttle up as it just
throttles down to idle itself when the throttle is fully open,is the oil a sign that its escaping from some where it shouldnt,ive checked the needle
assembly and its ok.