I used por15s engine paint kit, comes with everything you need including industrial degreaser that work better than my farm implement degreaser. Ive used por15 for some quad frames before and the stuff is still going strong and looking great. Grigg is right tho, I would completely strip it down with thinner so you would have the best adhesion. Pic of my painted engine back in the frame. Painted Engine..

I never let the truth get in the way of a good yarn..