Help with fuel problem on Seadoo GTS

[ROC]

After sitting for about 8 months, I can't get my seadoo started.

I didn't see any fuel in the inline fuel filter when I was cranking it over. I cranked it for about 20 seconds at a time several times. Still no fuel.

Tank is full and has been since last September.

I used a little compressed air to backflush the fuel line from the filter towards the fuel tank. It appears the line is clear. Still no fuel flow.

Any tips?

 

[VoodooMedMan]

After sitting for about 8 months, I can't get my seadoo started.

I didn't see any fuel in the inline fuel filter when I was cranking it over. I cranked it for about 20 seconds at a time several times. Still no fuel.

Tank is full and has been since last September.

I used a little compressed air to backflush the fuel line from the filter towards the fuel tank. It appears the line is clear. Still no fuel flow.

Any tips?

Yeah sell it and buy a Yamaha.

Seriously though what about putting a primer kit on there. When I had my Waveblaster II it had all the goodies on it. Couple items were the primer kit and disabled oil injection. Premixed that bad boy. Definitely needed it with the raced out engine but never had to worry about the right ratio of oil and the ski started everytime because I was able to give it a few squirts of gas. Had friend that had the same ski but stock and while it started everytime (Yamaha) they had to screw with choke or fogging it etc.

 

[encinoman]

seadoos have a little filter inside on the carb. Mine had similar problems. Cleaned the filter - solved.

 

[ROC]

seadoos have a little filter inside on the carb. Mine had similar problems. Cleaned the filter - solved.

That would keep fuel from getting to the filter?

I'll pull it apart and check that filter at the carb. Thanks

 

[Crazyhippy]

It could... does fuel free flow thru the line, filter, etc. A little into a cup perhaps?

Sent from my SAMSUNG-SGH-I727 using Tapatalk 2

 

[TPC]

That would keep fuel from getting to the filter?

I'll pull it apart and check that filter at the carb. Thanks

Yes, clean it .

 

[ROC]

Yes, clean it .

Easy for you to say. LOL, I've been trying to get that air filter off for an hour.

 

[Flynryan]

I believe those have a fuel pump on each carb that works off of pulse from the crankcase. If the fuel pumps have any small holes on them then obviously they wont work.

I would try a little raw fuel either into the carbs or pull the plugs and do it there. That might help get the fuel flowing.

Im assuming these are 2 strokes? 720/800/951cc?

 

[Luvnlife]

I believe those have a fuel pump on each carb that works off of pulse from the crankcase. If the fuel pumps have any small holes on them then obviously they wont work.

I would try a little raw fuel either into the carbs or pull the plugs and do it there. That might help get the fuel flowing.

Im assuming these are 2 strokes? 720/800/951cc?

x2:thumbsup

 

[ROC]

I believe those have a fuel pump on each carb that works off of pulse from the crankcase. If the fuel pumps have any small holes on them then obviously they wont work.

I would try a little raw fuel either into the carbs or pull the plugs and do it there. That might help get the fuel flowing.

Im assuming these are 2 strokes? 720/800/951cc?

2 stroke, yes. I was gonna pour a few drops down the spark plugs.

Getting to the carbs are a bitch on these things.

I've got gas flowing now. I have a spark, just not firing up yet.

 

[ace one]

we work on these every day......more than likely you will need to remove and rebuild the carbs.......if you ever had any bad gas in the past your in trouble.......see if it will even bark with some starting fluid........if it does then the carbs have to come apart........the fuel is probably all gummed up in the carbs.......the fuel pumps are in each carb and are basically just a diaphragm and after any water at all gets in to it you will have trouble, same with the needle and seat, they may be stuck.......we get $150.00 per carb to rebuild.....good luck and feel free to ask us any questions along the way......you need to take better care of it in the off season, like start it up once a month would be a big help.......:headscratch: go online to shopsbt.com they have instructions on how to rebuild them

 

[ROC]

we work on these every day......more than likely you will need to remove and rebuild the carbs.......if you ever had any bad gas in the past your in trouble.......see if it will even bark with some starting fluid........if it does then the carbs have to come apart........the fuel is probably all gummed up in the carbs.......the fuel pumps are in each carb and are basically just a diaphragm and after any water at all gets in to it you will have trouble, same with the needle and seat, they may be stuck.......we get $150.00 per carb to rebuild.....good luck and feel free to ask us any questions along the way......you need to take better care of it in the off season, like start it up once a month would be a big help.......:headscratch: go online to shopsbt.com they have instructions on how to rebuild them

That's a huge help.

Is it normal that I'm having a hell of a time even getting to the carbs?

I've rebuilt a couple of the carbs before and it was pretty straight forward, but, the carbs were already removed.

Thanks a ton.

 

[Gramps]

Hey ROC, just a quick question. Did you turn on the fuel valve?

 

[ROC]

Hey ROC, just a quick question. Did you turn on the fuel valve?

Yessir


My phone

 

[Flynryan]

Use stabil. The fuel nowadays is terrible. The jets are so small and the bad fuel will kind of "resin" and clog all jets. If it runs with fuel in carbs or down spark plug holes make the ski run for a few seconds only then the carbs jets are more than likely your culprit.

 

[ROC]

Use stabil. The fuel nowadays is terrible. The jets are so small and the bad fuel will kind of "resin" and clog all jets. If it runs with fuel in carbs or down spark plug holes make the ski run for a few seconds only then the carbs jets are more than likely your culprit.

Yeah, I just got done removing the carb on one ski. Son of a bitch, what a hassle. Can't even get my hands in there. It's almost like some little Japanese guys designed this thing.

I figure the carbs need rebuilding anyway. Might as well.

Pisses me off that I need to get rid of all this gas. Guess it'll go in mamas car.

 

[Outnumbered]

Hey ROC, if these are the skis you bought from me a few years ago, sold to your buddy, and bought them back from him, let me help a little.

About a year before I sold them to you I tore both carbs down and cleaned them and replaced the fuel pump diaphragms. I also replaced the fuel lines to the carbs with marine grade line and added the fuel filters. The reason for this is that the old Seadoos (these were bone stock) used a fuel line that ended up breaking down with the modern fuels. What happened was the little chunks of fuel line would make their way into the carb and create havoc. All lines on these skis after the fuel filters are modern marine rated lines that will not/should not have this issue.

After I did this we used them a lot and they ran perfect. So, I don't think the carbs need to be torn down again but letting them sit without stabil is bad for them as mentioned.

It sounds like a priming issue and is most likely due to the diaphragm being dry and possibly gummed up. Blowing the lines out actually made it harder to prime since air is not good when you are trying to prime a pump. You probably could have left the carb on and got it started with some starting fluid. Or, by gravity feeding the carbs direct from a small fuel container (once it starts with gravity feed you should immediately shut it down and connect fuel line back to stock fuel tank).

But, since you already pulled it, google the carbs to get a visual idea of what you need to do to access the fuel pump diaphragm. The fuel pump is easy to access and is integral to the carb. The local Seadoo dealer should stock them. But, its likely not torn but just needs to be cleaned from sitting.

 

[Outnumbered]

http://seadoomanuals.net/download/pdf/parts/manuals/1997/1997-seadoo-gts-gti-parts-catalog.pdfhttp://www.justanswer.com/boat/17lbg-97-seadoo-gsx-seems-starving-fuel-one.html

 

[Outnumbered]

http://seadoomanuals.net/manuals/1997-seadoo.php

 

[ROC]

Good stuff John. I'll be using those manuals. Thanks a ton.

I'm going in to Parker tomorrow to pick up a rebuild kit for the GTS. The smaller one is running great so I won't mess with that one.

 

[Outnumbered]

Good stuff John. I'll be using those manuals. Thanks a ton.

I'm going in to Parker tomorrow to pick up a rebuild kit for the GTS. The smaller one is running great so I won't mess with that one.

Right on, hope it turns out to be an easy fix. Those skis had real low hours and ran very well so I don't think it is anything major unless the other guy really trashed them. Let me know if you have any questions.:thumbsup

 

[ROC]

Right on, hope it turns out to be an easy fix. Those skis had real low hours and ran very well so I don't think it is anything major unless the other guy really trashed them. Let me know if you have any questions.:thumbsup

No way he trashed them. He's as meticulous as I am and he only used them one day.

They'll be god to go for years I think:thumbsup

 

[Outnumbered]

No way he trashed them. He's as meticulous as I am and he only used them one day.

They'll be god to go for years I think:thumbsup

That is good news.