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1999 GTX not starting

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backyarder

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Refer to 1999 GTX post.

Well, it seems that I checked/replaced items that I thought would help to start the jet ski.
New gas, new plugs, new gas filter, compression.
After reading other posts about not starting, someone mentioned the voltage rectifier.
Could this be my culprit.
How would I check the rectifier.
 
If it ran it would be problem solved. Tried to put a little gas in cylinder to try to start, but, nothing but engine cranking over. No farts, no sputter.
I checked the coil. I removed it and checked for shorts at the 3 prong plug in and everything is good, no shorts. But then I was getting spark at the plugs, (used an inline spark tester)
Don't understand this. It started right up at the lake on the trailer, put in water and hard to start. It did start but ran bad until I was able to open it up. It ran good for a good hour, with the exception of not idling. It died and would not start up again.

NEED HELP!
 
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If your getting spark them your not getting fuel the 99s have all kinds of fuel issues rebuild carbs and check fuel selector switch and change all gray fuel lines also check pulse line which runs fuel pump for leaks
 
Jumping between your two posts for the same thing to try to keep track of steps is tasking. The seadoo not idling should have been your first clue something was wrong.
At this point, I wonder the possibility of you running with something clogged which would create a lean condition. This could have destroyed your compression. If you have a compression checker, I would do that first.

1) You say you have fuel (you said its wet with fuel inside. if it wasn't wet I would agree with looking at the injectors)
2) You say you have spark (I wonder about strength, but would think you would get something).
3) You will have oxygen (at least enough to do something)
4) I wonder about compression.

I would have expected something with the above (at least a sputter, cough, etc).

Did you properly gap the spark plug?
Do they still have the proper gap?
I saw someone else post where the gap was closing because the piston was hitting it.

The voltage regulator is to regulate the voltage. I would think fuses would be popping if this went to far out of spec. I wouldn't put much weight on it if you are getting a good spark and not even a single bang from the engine. Use the spark plugs for the test (have both electrically plugged in but out of socket and don't forget to ground them). Watch the spark from them, do they look strong (white-blue colour) or weak (yellowish-red colour).

Are you using the proper spark plugs?
 
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Spark is good. (spark plug tester between plug and wire) compression is 148 and 149. new plugs. I just bought another set but went 1 number hotter (#7 instead of #8) Like I mentioned before, I also put a little mixed gas in cylinders. No change (not starting, no cough, no sputter) I also blew air into the breather to give more air if that was necessary. Still nothing.
to bring you up to speed with post:
Fresh gas. On trailer at lake, started right up. put in water, moved trailer, went to start it and it didn't start right away, but did finally. Took it out on lake, ran sluggish until I got past 5 mph zone and was able to open it up. Ran great for about an hour. slowed down in a cove and it would not idle and then died. Tried to start, with no help. had it towed to where I started from. took it out of lake to house, and tried again. Nothing. Replaced fuel filter and plugs. still nothing.
 
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You have stumped me.
Fuel + oxygen + compression + spark = bang

maybe work on the assumption not enough fuel like you originally were as you have confirmed everything else is within expectations.
 
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fuel injectors on 1999 GTX
Well, another day to PLAY with '99 gtx.
Decided to check injectors. Pulled rail, (all spark grounded) cranked engine. Spay is good. Put finger over each injector while cranking engine, and finger got wet. First shot was more than later as I cranked engine. I am going to try to blow air into injector hole, just in case something is there (can't imagine how, but will try anything at this time)
Next I will take off cover to the air breather (in case there is a restriction, bee nest, bird nest, beaver dam, etc. ha ha)
I also called and talked to a jet ski mechanic in Lake County about 2 1/2 hours away. (appears to be the only one left as the Dealer will only work on four stroke machines) and will take it to him this Friday. He is booked up but will run diagnosis on ski. Hope for the best.
Will inform forum about the outcome.
 
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new update:.
after putting injectors back in and hooking up all lines and wires, tried to start ski, AND IT STARTED FOR 2 SECONDS AND DIED.
After all of this I believe that my injectors are dirty, because as I mentioned while testing, first shot was good, than the other shots, more like a mist. I assume that I need more than mists.
REPLACE INJECTORS.
Where do I buy them at reasonable cost
 
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