I have a johnson 225 venom, when i start it up it smokes alot. when i give it the gas and try to take off it stalls and cuts off. If i shoot gas in the carbs (by means of the key switch) it will usually level off and run fine. Once it gets to about 1200 rpm it runs great, strong and hard. it also is using more oil that usual. could the oil injection be causing the problems? any help would be greatly appreciated! 