Missing spark on cylinder 1 optimax 200hp Utopia 2004

[Vice]

Hi I needs some help
On vacation with the kids and cylinder 1 won't fire up
Seadoo Utopia 185 2004 Mercury optimax 200hp dfi

-Problem starting the engine
Spark plug one is clean as new from gazoline
It's not speaking.
Spark plug 1 is good and tested

All spark plugs good and tested

Problem seem to come from cable or deeper.

What's recommended for cleaning connector ?
No corrosion apparent.

Added oil directly to gaz to improve lubrication
Running of 5 cylinder so no more tubbing or wake boarding the kids are mad!!!

Any suggestion, or ideas would be very welcome.

 

[Dr Honda]

On an Opti engine... if you lose spark on only one cyl... then either the coil has gone bad, or there's a loose wire somewhere between the ECU and the coil.

I would first swap coils wit another coil on the engine. If the dead spark follows the coil... then it's bad. If it stays on the same sparkplug... then there's a bad wire somewhere.


I know you said the plug was clean... but did you actually check for spark?