hello i'm new to this so bear with me been out of the water for two years due to a diabetic coma back in 2011. trying to get the old chris craft stinger 222 back in the water this year. everything going ok but back to same question i always have had.I have thru hull exhaust everytime i watch people cranking theres up water just comes blowing out the exhaust pipes. i am hooking up water to the bottom of the drive unit like everybody else why does mine not do it are they hooking up somewhere else or what i need to know if anybody can help please do.