spark Issue on seahorse 40hp

[bpm004]

I have this Motor Seahourse 40HP from my friend that didn't used it more then 6 years.
I got issue with switch to find keys , but found way to get it started and work.
It worked maybe 10 times when I plaied with the switch ( keys approx 15 minutes ) but then it stoped. I checked and found that not getting spark anymore.

I found manuals and checked the switching looks good, any ideas what next it can be ?

Thanks