1996 gtx won’t go past 3500 rpms until warm

[Waterboy107]

Ok so my 1996 gtx starts and idles fine but when you punch the gas it goes to around 3500 rpms at WOT, after the jet ski has idled for 10-15 minutes you can cut it off and crank it up and it runs fine, what could this be?

 

[JeremyD615]

What is it doing when you hit 3500? Is it stuttering, or does it just bog down?

 

[Mekanix]

Sounds like grey fuel lines and clogged carb filters.

 

[Waterboy107]

All the fuel lines are replaced and carbs were just cleaned and it runs fine after 10 minutes of idling

 

[Mekanix]

What happens with a little choke at that point?
I'm also wondering if maybe there is an air leak somewhere in the fuel line.

 

[Waterboy107]

When I choke it just a little bit at that point it starts to lose rpm and if I choke it all the way it dies

 

[JeremyD615]

We’re the needles and seats replaced? Did you use Mikuni rebuild kits when you did the carbs?

 

[Waterboy107]

I did use Mikuni kits but I did not replace the needles and seats but it runs fine after warmed up so I figured it wouldn’t be the carburetors

 

[JeremyD615]

Well if the needles leak, the engine will load up with fuel while it sits, and it may take a bit to burn all of that excess fuel out. Have you looked at your plugs after it runs that way?

 

[Waterboy107]

Yea the plugs seem to be fine but maybe a little too black

 

[JeremyD615]

is The plug black and wet, or does it look like it’s soot? And is that while it’s having the problem, or after it starts running right?

 

[Waterboy107]

It looks like soot but that’s after it’s running right, haven’t checked them when it’s having the problem

 

[JeremyD615]

That would be a big indicator. If the problem is leaking needles, the plugs will be slightly wet until it burns off the excess...

 

[Waterboy107]

Ok I’ll try and take it out soon and check the plugs, thanks

 

[mikidymac]

Just pressure test the carbs and see if the needles are leaking. They should hold 10 psi with the return line plugged.

 

[ddt3055]

Someone may need to help on this forum on how to post to the correct place but I just need help with this thing. Here we go.


I have my 1993 GTS 587 and I am not getting any spark I have changed out computer, stator, checked wires trimmed them too, checked all buttons, I feel like I have checked all I can I did check ground it is good and just to be sure I added and extra ground. Tried disconnecting the black and red wire to see if I get spark but no. The only thing I wonder is do I have to have to have fuel in the tank for the seadoo to spark. I know to run I will but is there a sensor that prevents spark if it is dry.

 

[ddt3055]

I’m sorry if I should be on another area if so please just point me to it first time user

 

[mikidymac]

I’m sorry if I should be on another area if so please just point me to it first time user

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