If the smoke is blue, sweet and burns your eyes, most likely your timing is way off. Also, for your edification and the general knowledge of others, you cannot "fill" a pump to make it work any faster. The fuel that is in the body of the pump is "post injection" which means it is all on its way out, not in. If you try to pour fuel in through the top cover, all your doing is wasting time and voiding your warranty.