I have a 94 Seadoo Speedster that wheni bought it i could not get it up on plane. The rpms would also jump from about 4000 to 7000. Well long story short with new plugs and putting sea foam in the tank as well as greasing the flywheel seal and shaft seal it runs fine. My question is that the seals are bad one has a pinhole in it and the other is chewed up on the end. what is involved in replacing these and how much should it cost me. I think it is the seals that caused the problem i was having? but im not 100% sure. anyone have any thoughts as i dont want to replace these just to have the boat go back to what it was doing before.
