I ve searched for answers to this but have yet to been able to find an answer. I have 2x 496ho (2008) and manual controls to a bravo 3x drives. Was going fine. Then I tried to restart after anchoring for lunch and the port engine doesn’t sound the test alarm and no crank. I thought maybe ignition switch so I swapped them. Still nothing. Check all the fuses and swapped over all the relays from the other engine. Made no difference. The 50amp breaker I pulled off and tried to connect directly together still no power. Is there any other fuse I might of missed? It was working and now there is just no power at all in position 1 on the key. So I don’t think it is the starter fuse as I would assume I would still get power. I ve got a rinder tool but can’t connect as the power isn’t turning any thing on to get a code.

any ideas?

It's not in gear is it? kill switch get flipped? bad connection on gear selector safety?

I would still get power on position one and beep test if it was in gear? I did try move the selector but to no benefit. I don’t think I have a kill switch. But will have another look for one

The starter fuse carries all power to the top of the engine and on to the dash

the starter fuse is on the starter motor? It is very difficult for me to get to it, and will likely need to remove the risers if it is on the starter motor. The is a circuit breaker on the front of the engine 50amp. But that seems to be fine. I have voltage there.

If you have power at the 50 amp breaker its not the starter fuse, you didnt mention that before.

The "kill switch" is located on the dash usually next to the ignition switches. There should be a lanyard attached to them. I accidentally pulled one years ago and didn't get it reconnected perfectly and so no power.

Kill switch should look something like this. Being that it was working fine and then nothing after being anchored out it seems like it must be something easy like a kill switch or neutral safety. I have done both of these things!

Most if not all twins engine boats have a single kill switch not one for each engine

you are correct, just looked back at a pic of my boat and yes only 1 kill switch. Just trying to think of the easy tings first!