96 seadoo spx performance issue

[Haralambou]

Every time I take the ski out. After 20 min when I squeeze the throttle all the way. It acts like I’m loosing power then it will go full power back to less power. Almost bogging down. I have changed gas filter, wear ring, oil filter. Not sure what the issue is? Any thoughts? Need help!

 

[The_Doctor]

Carbs ever been rebuilt? Fuel selector switch ever been changed?

 

[Haralambou]

No guess I’ll try that next. Lol. Appreciate it.

 

[TicTacZac]

No guess I’ll try that next. Lol. Appreciate it.

There’s little filters in your carburetors as well, but new ones will come with a good rebuild kit. Also, save yourself the headache and get a genuine rebuild kit none of these “aftermarket “ cheaper alternatives. Learned this from experience! Keep us updated!

 

[Haralambou]

Changed the fuel selector switch. Still had issues. Bought a carb rebuild kit. Rebuilt the carbs. We will see when I take it to the lake house if this fixed the issue. Might have been the fuel pump. Filters looked clogged

 

[glsmohio]

redo the carbs it will run fine.

 

[mikidymac]

Those don't look like OEM carb kits in your pictures, where did you get them?
If you didn't get OEM you are still going to have issues. Also you should be replacing the needle and seat too.

 

[Haralambou]

Yeah. I have replaced almost everything. Rebuilt carbs. Now it will only run if the choke is pulled out about 2 zip ties. Then it will open up and go about 50 to 55mph. And it runs at 95% bit as soon as you clip those zip ties off it shuts off if you push in gas throttle. If I pull the chicken all the way out really quick like. It will go fast for about 10 seconds. That’s how I figured out the zip tie trick. If that’s what you wanna call it. Any thoughts?

 

[mikidymac]

If you have to pull the choke you are running lean. Fuel system, fuel system and finally fuel system. STOP riding it this way, you are going to damage the engine.

 

[JeremyD615]

Yeah. I have replaced almost everything. Rebuilt carbs. Now it will only run if the choke is pulled out about 2 zip ties. Then it will open up and go about 50 to 55mph. And it runs at 95% bit as soon as you clip those zip ties off it shuts off if you push in gas throttle. If I pull the chicken all the way out really quick like. It will go fast for about 10 seconds. That’s how I figured out the zip tie trick. If that’s what you wanna call it. Any thoughts?

I didn’t see any response to Miki’s question about where you got the carb kits. That’s important. If they are not GENUINE Mikuni kits, you need to buy the proper kits and redo the carbs again.

You also said you replaced the fuel filter. Did you replace the OEM water seperator, or did you replace it with another type? Sometimes the aftermarket filters will not flow well enough to supply fuel at full throttle. This really sounds like an air leak somewhere in your fuel system causing you to go lean, so you need to check the whole system. If you still have grey fuel lines, use this as an opportunity to replace all of them with black automotive lines and check everything over...