Ok I am at a loss, bought a 97 seadoo xp 787 last year and it ran great until the last time out at the end of the season. When you would get to 40 mph it would still accelerate but would miss like it was hitting the rev limiter. Well had full bore go through the engine, new wear plate and the impeller looked good, all new fuel lines rebuilt carbs, and new fuel filter and guess what, it still does it. And now to add to it going across the water at about 40 it will just die at times out of knowhere. If you crank on it for 5 to 10 seconds it will start. Sometimes when it restarts it runs fine sometimes it acts like it is running on one cylinder and then when you take off the other one picks up and it runs fine, until it decides it wants to die again. Please help.