My 98 gsx ltd is taking on water. I noticed it seems to hold fine not running in water. I have taken my rear nozzle and pump assembly apart and taken the drive shaft out. The shaft as well as the bearings and seal all "look" good w/ no shaftplay. I did read in a post about the siphon tubes coming out of the nozzle and water being pushed back in the hull instead of being pulled out. I am missing one of these tubes. I tried to drive w/ the seat off and hold up the siphon ends and the one w/ the tube missing in the nozzle appeared to be pushing water back in. Is this common? Could this be my only problem. I rode today for about 20 min. to test it out and the water level had reached the driveshaft. Also I noticed since all this began last year I have lost some top end speed. My ski used to reach about 71mph and about 7200rpm but now only runs around 63 and only reaches about 6350. It has aftermarket intake plate, carbs, R&D head pipe, R&D reeds, MSD ignition, etc...