i just bought two jet skis a 95 xp and spx. both have the oil injections pluged going to the injector pump but it has two other hoses going to the motor i already have the oil tank out, can I just plug the other hoses? My other question is on the XP it seems to flood before I even turn it over, I have to start it with the gas off and then turn it (XP) on once its running to keep if from flooding. Both the jetski's ran great for the first hour, then they sounded like they were running on one cylinder. I know I should change the spark plugs, could it be the carbs??? Thank you!