Twin motors not staring start

[MFO]

Thanks for the suggestions. The key is a double key. The kill switch was simply disconnected thus re maining in the “open” position. Has been this way for years. Boat yard now looking into problem. Stated they have ordered a new start switch. We’ll see. Appreciate all the suggestions. Will pass along ultimate solution.

 

[seasick]

Any chance you reversed the connections when installing the batteries? Did you check all the motor fuses?

 

[MFO]

Any chance you reversed the connections when installing the batteries? Did you check all the motor fuses?

I did check the battery connections and all looked in order. I also checked all the fuses I could find and all checked out ok. Thanks for the suggestion.