Hello. I bought Seadoo RXT 300 and I'm having shitfull of problems with it. It works perfect on the trailer and outside of water but when I put it in the water, it dies. Jet works fine aboout half of a minute then he chokes and dies. It has enough power to crank the engine but it just won't catch and start working. Jet has 50 working hours and he was on service 3 times and they changed the whole motor and the same problem is stil here. Eventualy service gave up on it and here I am asking for advice and help of any kind.