Compression

[sharie]

Can anyone tell me what the compression should be on a 1996 Seadoo XP?

 

[nswillin]

Sharie, welcome to the forum. This is a cool place and you'll find a lot of help here. Ideal compression should be 150psi. Anything under 100 you need to rebuild. Also the cylinders should be with in 10% of each other.

 

[sharie]

Hmm, I'm looking to buy a used one, and had an auto mechanic check the compression, since it was handy, and he told me 175 on both cylinders. Wrong reading?

 

[nswillin]

Yeah thats way high. What kind of Seadoo is it?

 

[kustomkarl]

There shouldn't be 175 psi. He needs to do it again. Unless it was just rebuilt, it should be no higher than 150 psi ideally.

Karl

 

[kustomkarl]

Can anyone tell me what the compression should be on a 1996 Seadoo XP?

This is the seadoo from the first post.

 

[sharie]

1996 XP. About all I know is that is has a new starter, and it was owned by a younger kid who hasn't had it in the water this year. It starts right up, but I haven't tried in the water. Is there anything I should look for before buying?

 

[nswillin]

Sharie, check out this thread; http://www.seadooforum.com/showthread.php?t=134
There are some good ideas on Buying a Used Ski. It should help. Good luck.

 

[Ktmguy23]

I just bought a 96 XP about a month ago and am really happy with it. So far I have had to repair the VTS system and just got done rebuilding the carbs. This is my first ski and it is pretty fast and handles quite well. I did a compression test on mine and both cylinders were at 150 on my guage. Good luck.

 

[timmyboy76]

1996 XP. About all I know is that is has a new starter, and it was owned by a younger kid who hasn't had it in the water this year. It starts right up, but I haven't tried in the water. Is there anything I should look for before buying?

with compression that high, check to see if an aftermarket head been installed, and what kind of intake it has???(flame arrestor/s..)

 

[sharie]

I don't think there was anything aftermarket put in, or the guy would have mentioned it. Is an older XP more high maintenance than other models? We currently have a '96GTI and a GTS that we just purchased, and have already had a few problems.