Hi I have a 2000 Yamaha gp 760 and it seems like the water is coming out of all the ports except the exhaust pipe the water box is getting kinda hot and only a few drops of water is coming out when it is idling when I rev the engine it is coming out fine its not the water box as I have 2 skis that are the same and I switched the water box to see if that was the problem and its not. HELP PLEASE