1999 Seadoo GTX Limited - Good PSI?

[Rob451988]

bought this GTX 3-4 years ago. 951 motor. I believe I'm the 2nd owner. pervious owners were older and said they didn't beat up on it. As far as I know the engine has not been rebuilt or replaced. 293.8 hours on the info. are these good for compression? I saw 130-150 is new, also saw this motor is lower compression so 120 might be fine?

 

[tobytd]

120 is fine
130 brand new

 

[Rob451988]

these are warm readings, the originals were cold readings

 

[tobytd]

How does it run?

 

[offgrididaho]

300hrs means it needs a complete rebuild. Mine at 225hrs was needing a rebuild and is being rebuilt. The cyl had a ridge at the top, the end crankshaft seals were shot, the raves were leaking, the carbs needed rebuilding, and the pump need a bearing. So to keep running that you risk blowing the motor. Also 150-155 is new, 120 is low and needs rebuilt.

 

[Rob451988]

It idles just fine. It bogs down just a little bit when trying to plane but once it actually planes it runs great. 5000-5500 RPM about 30-35 mph. I try to keep it under that 5500 RPM mark because anything over 6K seems to blow the short exhaust hose/ connector between the exhaust manifold and the water box.

 

[Rob451988]

Just today