I’ve got a 1997 sea doo GTS that will start while pulling the choke but dies after 30 seconds or so and it won’t run without a choke. I did a full engine rebuild on this ski and rebuilt its single carb but it still won’t run right and I don’t know what’s wrong or how to figure it out. It sat for about 15 years after it would bog down while running and when I got to it it was seized so I did a full rebuild and it still won’t run.
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97 GTS won’t run
- Thread starter Gwstaudy
- Start date
I used only genuine mikuni parts. I don’t know what the rebuilt sticky is or what you mean by connecting the carb fuel hose directly to the tank.
Carb Rebuild Thread. The Seadoo Carb Rebuild Thread
Did you use the new springs in the kit? If you did they are wrong.
You can bypass the fuel strainer and fuel valve to see if they are the problem by running a temporary hose from the fuel thank to the carb inlet.
Did you use the new springs in the kit? If you did they are wrong.
You can bypass the fuel strainer and fuel valve to see if they are the problem by running a temporary hose from the fuel thank to the carb inlet.
I didn’t use the thread but I watched a few videos on it and no I used the old spring in the carb.
I also replaced the fuel strainer and valve and they are brand new. I can see the fuel in the line goes into the carb. Still haven’t figured out the issue though. Some videos I’ve looked at make me believe it might be an air leak somewhere. I ordered a pop off tester to check the carb as well.
If pulling the choke masked it run better then you either have an air leak somewhere or the fuel is being restricted. Did you ever end up running a fuel line directly from the fuel tank to the carb to eliminate the fuel selector valve and filter from the equation? Also I know you said genuine mikuni but I’m interested to know where you bought the kit from? I find ebay and amazon can be deceptive In their advertising to lead you to believe its genuine Mikuni when it’s not.
I haven’t ran a line straight from the tank to the carb yet. I believe the rebuild kit was from Bay Area power sports and all the parts fit perfectly.
This is what I found at Bay Area powersports for your machine, the kit is Winderosa, this very well could be your problem. Although they appear to fit correctly the tolerances are off
It may have been from Amazon then because I’m certain they were genuine mikuni parts that came in a mikuni package.
It may have been from either place but this is what it looked like.
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Sea Doo PWC Carburetor Reference
This is a handy site,
This is a handy site,
So pop off is within spec. I am also replacing my check valves because I wasn’t sure if I did it right.
23 to 43 is what Seadoo source says so I would say that’s perfect, at what pressure does it close and hold? Have you tested with 10 pounds to see if the needle is leaking once it’s back together
When doing those check valves I pull the grommets through with dental floss and then have a little pick to pop it the rest of the way through. It would be handy to have 2 people for this,
I bought the tool for it too to help.
Post how it goes with the tool, I might grab one. Where did you get it?
I bought it on Amazon from Jet ski plus LLC. Here is a pic. It was only $11.
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It closes again and holds at 38 psi and it can easily hold 10 psi without leaking.
That’s when the carb is together?
I’m sure that would cause an issue
Yes the only things not together were the high and low speed needles.
