‘96 GTX Issue

[Seadooguy124]

Hi there. I have a 1996 Sea-Doo GTX that when you start to take off, half the time (especially when cold) will get to a certain RPM and not accelerate past that point until running there for a minute or two. It doesn’t quite shake when I try to push the throttle more, but it more starts doing a light bumping and just sticking at the same rpm until, like I said, it starts to take off. Any other time that it doesn’t do that, it won’t grab and go when it hammer down on it. I have to go very light on the throttle and slowly accelerate, and if I don’t, it will cavitate and return to idle, like I am just sitting in neutral revving it up. If you have any suggestions, please share, as we are trying to get this thing fully ready so we can enjoy the last of the summer on it.

Thanks,
Tripp

 

[Seadooguy124]

Took this ski apart because my rear cylinder lost compression. Any idea what would cause this? Don’t know if it is any correlation, but I rolled it a few minutes before, and righted it the wrong way without knowing, and it filled halfway with water due to a bad seal in the hood. So anyways, got that pumped out, and I tried to start it. I thought the carb was full of water, or maybe a cylinder, but that wasn’t the case. It started a few times and ran but only one cyl ran. I stuck my finger in both spark plug holes, and only the front provided compression. I pulled apart the RAVE assy and didn’t find anything horribly wrong, except a small ding in the piston. Could that have been it hitting the piston in the engine block? Just trying to get to the bottom of this. Thanks in advance.

 

[mikidymac]

Did you test with an actual compression gauge?

 

[Seadooguy124]

I haven’t used a compression gauge, but I can tell there is way less compression than in the front cylinder because when I try to turn it over, the front blows harder than the back, but I also heard it going down when it started losing compression