1998 Seadoo GSX limited muffler/exhaust removal

[waterrider65]

I have a 1998 Seadoo GSX limited. It has an oil leak somewhere on the bottom end. I am trying to remove the muffler on top to get to a point where I can see more of the engine compartment and maybe find the leak. I have taken out all the bolts holding the muffler in but CANNOT get to the hex nut underneath to remove it. The Seadoo manual drawing looks like it is a 10 metric nut, but not for certain. I simply cannot get a wrench or anything on it. Any suggestions? The jetski runs but great but I need to fix the oil leak. Help!!!

 

[Ryan727]

There's a special tool for that fitting. I also have read if you remove the carbs, you can fit a box wrench on it and do it that way.

You don't need to remove the nut, just loosen it. That corner of the exhaust pipe is not a full circle that slips over the bolt, but rather a "C" shaped joint that fits in and holds it in place.

The bolt is attached to the manifold, and the nut snugs the corner of the exhaust to the manifold.

 

[Ryan727]

A picture of the 951 for reference. You see the bolt sticking up off the exhaust manifold, that's what you're trying to get to.

 

[waterrider65]

There's a special tool for that fitting. I also have read if you remove the carbs, you can fit a box wrench on it and do it that way.

You don't need to remove the nut, just loosen it. That corner of the exhaust pipe is not a full circle that slips over the bolt, but rather a "C" shaped joint that fits in and holds it in place.

The bolt is attached to the manifold, and the nut snugs the corner of the exhaust to the manifold.

 

[waterrider65]

Thanks for all that info!!! Gonna head back out here and see what I can do!!!

 

[mikidymac]

Just remove the carbs. The special tool is a joke and still doesn't work. With the carbs off it couldn't be easier.

When you get it off replace the small 3/32" Tygon oil injection lines and rebuild the carbs if they haven't been done recently.

Also it is typically just the oil tank seam and grommets that leak oil on a 951.

 

[TomShadow]

I had this problem, had to remove the exhaust as the last owner used sealant instead of a gasket. But couldn't get to that nut so I bought one of these

No need to remove the carb