Engine don't start then stop

After fighting the engine over heat and solved , another issue happen immediately ,
after fix the overheat problem,Went out for wakeboard on the sea 4 hour ,all is fine,until back to the hard stand and flushing the engine,it can't run continuely , test the following:
1 ) spark plug,remove a spark plug,no wet,has spark when crank,
2 ) fuel rail and fuel cell ,has gasoline splash,fuel press looks like normal ,
3 ) check all breakers ,in kick board and engine room,no tripped,
4 ) lanyard checked ,no open circuit,
5 )battery checked good enough ,
    any where I should check ?
* the temp gauge long time in zero,
* oil gauge don't drop to zero even turned off the engine,
* recently idling not so steadily and had few times stall these not happen before,
* when press start ,the engine looks firing until release the button.
Appreciate any advise

We need a working link to your video.

I searching "Richard Wong Nautique" and YouTube served up the following, which is entertaining but not necessarily helpful:

http://youtu.be/5WW1zSuV5Yo

Ok, cool, I got it now.

Here is the video embedded:

Is the fuel/gas fresh and good?
When the low pressure fuel pump on my excal was failing the symptoms were very similar.

Richard Wong wrote: * suspected Lanyard and checked, open current of the lanyard is 45ma on DVM,is this right ?

You want to check Ohms and not ma. You should get a near zero Ohm reading.

got a OBDII scanner from China, but can't find the right connector for the GT- 40, seems they are unify to a standard type but different from GT-40 used in Nautique, how you guys connect it to the STO of GT-40? or any one know how to modify it?

2001 Super Air Nautique with GT-40 EFI,

lewy2001 is our resident gt 40 expert. If I recall correctly I think this is the tester,he will know for sure. I also think you need the extension cable too. If he sees this I know he will weigh in.
I don't know if you have seen this either it may help oops I see Brian already posted that

ok,I should get one,this scanner can control engine start and throttle ?

help with 79 tique please jfbowman8@gmail.com

the breaker on the kick board beside the toggle switch always stripped down when start the engine that misleaded me a while when trouble shooting ,that controls the fuel pumps,.

Good you found it Richard

I added this to the GT-40 thread.

update: the issues: fuel pump and starter intermittent cause by a connector found under coolant tank ,its design don't water resist, many salts build up ,clean it every thing become fine.