Seadoo 3d clog

[Gxglenn]

#1
Hello out there, great site! Have been viewing for quite a while and 'finally' ran into an issue today with overheating. I know it's a 3d but please help me out, it's my loner I let my friends use. I have an ultra 150.

Seems to cool fine when I have the freshwater washout hooked up, but as soon as I set her in the water it starts to overheat and doesn't ''pee'' out the side anymore. But the pisser runs fine when on hose, and when I switch opposite water inlet to hose inlet side as well. While looking at the motor head, there are 3 ports...1 on the left and 2 on the right. I took all the tubes that come off the head off and blew air through them to ensure they weren't clogged. Seems the 1 on the left goes to the exhaust jacket, the top right goes to the freshwater cleanout and the bottom left goes to the 'normal' intake that is located inside the rear unit.

I'm confused as to what the cooling issue could be here and any help would be appreciated. All I'm doing now is replacing plastic exhaust parts that are burning holes.

Thanks for the help folks.

 

[mikidymac]

If the wear ring in the pump goes bad it can cause almost no pressure in the cooling system to move water. If the lines appear to be clear I would check there.

 

[Gxglenn]

So I took it out yesterday and the pisser on the side was pissing but not at idle, also the warning light blinks under WOT but when I back of to about 3/4th it stops blinking. I dont think it's the wear ring because the ski only has 30 hours on it, but I did run it up on sand bar but clean intake and outtake hoses off and blown them out.