1999 gti just quit!!!

[crtech3]

I ran this out of gas before this happened, before it ran out of gas it was perfect.there was a bit of water in the lines, so i flushed it out and filled it with new gas. it ran perfect again for 15 minutes then just quit on me. When i got it back to shore keep trying to start and nothing. I have tuns of spart, have compresion, and gas. Sometimes it will barely run then quit again. tried putting gas into the chambers and again nothing. it was backfiring a little bit but not much. Check filters they still ok. The plugs are black. gap is correct.
not sure what next to do

 

[robin savell lloyd]

install new spark plugs

 

[crtech3]

old plugs still with tuns of spark, but why just die and not restart

 

[crtech3]

is there another fuel filter inside the carb maybe?

 

[Vicious]

Also check you compresion... if it sounds like it is trying to start and you can hear what sounds like sputter... you might have a compression problem..

Vic

 

[crtech3]

checked compression and have 110 on both, anybody know about the carb question, 85 hp motor know for losing timing? sheared key? not sure what next
THX

 

[crtech3]

i put new plugs in. it hardly idles, push on the gass and quits.

 

[robin savell lloyd]

110 on compression is on the low side. but I think it should still run. But this is so close to the border of compression that I may be wrong. Good luck Robin :cheers:

 

[kustomkarl]

I would pull the carburetors off and clean the internal filters. Be careful not to damage or tear the diaphragams. Re-assemble the carbs and it should be ok. Keep us posted on your progress. If you want you could join as a "premium member". As a premium member you can down load a authentic seadoo manual from the seadoo manual library. In the library is a variety of manuals for almost all years and models. You can view as many as you like on line as a PDF file, or download it and print it for your personal and privet use. There are operator manuals and repair manuals for you to do your own repairs on your seadoo. The repair manuals have everything from troubleshooting, repair procedures to winterizing. It contains wire diagrams torque specs and pictures for disassemble and assemble instructions. In the spec sheets it tells everything needed to maintain oil changes, spark plug gaps, carburetor rebuilds and impeller wear ring tolerances. Click on the "Seadoo Manuals" link at the top of the page for more details. If you need any help or get in a jam, we are always here to answer your questions too.

Ideal compression on that engine is 150psi...this might be part of your problem also.
Karl

 

[crtech3]

I checked the carb,there is lots of gas. The plugs are dripping, don't think the carb is the prob. Any other sugguestions?

 

[kustomkarl]

How did you check the carburetors? Lots of gas...a little gas can look like a lot Be sure the internal filters allow full gas to enter the carburetors. Check the settings of the screws too. The problem could very well be the low compression of 110psi. It might be a time for a rebuild.

Karl

 

[robin savell lloyd]

install new spark plugs

Sory I posted this without reading all of your post. I must have skiped one
If you lay the plugs on the engine to check for spark you can still have alot spark and have a fouled spark plug. I can only guess the reason that it can show alot of spark this way and still be fouled is because the spark plugs do not have a good ground and that helps them to fire when fouled. but I can allways be wrong I have just seen plugs that seem to have good spark but it was not till I replaced them that engine would start. what would it hurt? you did say that they were black as if they were carbon fouled. :cheers:

 

[robin savell lloyd]

It does seem like you have a fuel problem. I do not know if the compression is low and not alowing the fuel to burn good or if you are running to rich because of carb problem. You say plugs were black so I would thank that you were not burning all of your fuel. Try this pull both plugs spin engine over with full throtal for 10 seconds, reinstall plugs and let us know what hapened. :cheers:

 

[oldmanactingyoung]

Could Timing have Jumped im not real good with Jetski but on autos i have had almost same issues and it turned out to be timing Related

 

[TwinGTis]

Same problem KEEP THE THREAD ALIVE

I am having the same exact problems with one of my 99 GTi's. Running full speed and then just quit, and now won't crank. Fires but does not keep running. Getting plenty of fuel and oil (almost seems like too much oil) and cleaned out the carb. Compression is 150 and 142. Getting spark just won't stay cranked. To me a car specialist I fiugre it would be the timing, does anybody know if you can adjust the timing on these things. Lets keep this thread alive till the problem is solved. And if you did find out what was wrong can you please fill me in. THANKS

 

[kustomkarl]

There is no sense in changing the timing. Once it is set it never changes. I would check the carbs internal filters for cloging...it might get fuel but not enough to keep it from stalling.

Karl

 

[TwinGTis]

Possible fix

I was looking more into the shop manual and found a possible solution. Anybody ever heard of the Woodruff Key? If it is anything like a mower, the slightest crease ( it doesn't even have to shear) will cause the engine not to run. This throws the timing off the engine. I'm diassembling it tomorrow to check it out.

 

[RX951]

sounds like you ran it too low on fuel and sucked up soem trash/dirt/debris and possibly plugged the internal filters in the carbs.

I would pull the carbs and disassemble to clean the filters

 

[seadoosnipe]

Well done RX951!

This is what I was waiting for, then as I get to the bottom of the page, there it is........pix and all.

KustomKarl is right crtech. You can have tons of fuel, but no gas. And that little filter right there is the reason why. It's inside the carb, to protect super fine elements that may have passed through your fuel strainer from entering the internal porting of the carbs.

I'd follow KustomKarl's advice on pulling and cleaning. The keyword here from you is "I ran it out of gas and sucked up some water"..........no other problems before, now it won't run. Fuel system...........:cheers:

 

[RX951]

Part #22 when you disassemble the carb fuel pump block

 

[TwinGTis]

Not Fuel

At least in my case the problem is not the carb filter. I know this because I sprayed fuel directly into the carb when i was trying to crank it. If the issue was fuel related in anyway, this would have bypassed it. about to go check the woodruff key later today.