HELP SAN 2008, 5000h, no sparks.... what to test ?

[CorrectCraftAddict]

Dear Nautique community, I'm working on my SAN 2008 with a Excalibur 343. boat was running great for years with normal maintenance. 2 years ago, boat stopped and was left in non working order and I pick it up to repair it.
I have been working on a big maintenance and check, rebuild heads, check of pistons rings gaps, bearings etc ...
Yesterday I did put the engine back, and can't start, rotor and cap are good as well as new plugs and good wires. after testing for a while I figure that only cylinder 7 in firing....
i did try to switch cables and plugs, but no success, only cylinder 7 if firing...

Is there by any chance someone with Electronic knowledge who can assist me?
I think of Crank shaft sensor ?
Bad cap ??
COIL ?
Ignition module in ditributor?

How to make more test??

Thanks a million for your help

[Nautiquehunter]

Do you have spark going into distributor cap from coil?

[CorrectCraftAddict]

yes, I have one spark working, number 7....only 7, really weird

[CorrectCraftAddict]

problem found, the new cap was defect !, re-changing cap and started right away

[shag]

Sometimes even brand new caps have been found to be bad. Glad you got it fixed!

[CorrectCraftAddict]

Indeed, the bad thing about it, the cap wasn't a Chinese repro... it was an OEM...that's bad