ok, first thing, clean it. Take ALL the parts off, and run the body and barrel through a dishwasher, or HOT water and degreaser. Friction isn't your friend. Oil it up with air tool oil, and try shooting it with the bolt removed. I'm guessing you have the wrong size bolt o-rings.
Recocking is controlled by the small off-center hole in the valve. It should be inserted so the hole in in the 12'oclock position. I've heard of people having them at the 6'oclock and the valve retaining screw blocking some of the air flow.
You can't really over oil a Raptor, just be sure the barrel is cleaned after you oil it and fire it a few times, as the extra oil exits there.
Any other issues, email me. I check that several times a day.