hi i just put a really nice 840 kawi bigbore in my sx 750 hull... it will start and everything is good but i cant seem to get the thing to cool. like no water is coming through the pissers.. and the pump line is not clogged,and it will piss water when i hook it up to the hose and run it out of water.. but nothing when i put it in the water can anyone help me out?