Hi everyone, new to the forum here but not so new to boats or engines. My family has an older boat that we use at our family camp in the Adirondacks during the summer months and I recently ran into an issue that has be stumped. I was using the boat this past weekend and it died on the water and hasn't turned over since. I had started it up and let it warm up at the dock, ran fine. Took it out on the water, idled up the lake a ways and then opened it up and cruised around a few minutes, full throttle then somewhere around half throttle another few minutes. As I was coming back down off plane I got down to a high idle speed, then pulled back to just idle, but in gear, to drop the nose down and come to trolling speed. Just as I pulled from high idle to low the engine stalled out, more like just died. Something with the way it cut out left me with a feeling it wasn't going to start back up, which turned out to be the case. After a tow back in I did some troubleshooting and am a bit of a loss still. The engine will turn but doesn't even try to kick over. Drained fuel filter, some gunk but not bad and seems to be getting fuel. I also poured a little gas down the carb barrels at one point and still got nothing. Spark arrestor pulled, dirty but even off still the same. So fuel and air seem to be out. Messing around with the dash I noted that for some reason the kill switch/lanyard appears to be working backwards. With lanyard pulled, dash comes alive. In place, dash dead. I tried to bypass the switch altogether but still same result. This year the ignition key/switch was replaced as well as the trigger wire from ignition to coil as it shorted out first time boat went it, rendering a similar issue but it would at least try to turn over, unlike now. I'm not sure to test the coil to see if it's providing spark, aside from pulling a plug and grounding to metal while cranking, but haven't had 2 sets of hards to try that method as of yet, although I gather that isn't likely the best way to do so on this engine either. Any ideas on what avenue I might want to go from here would be appreciated. I can generally figure out most anything given some direction, but not sure what way to go in. Thanks in advance, looking forward to doing some reading here and hopefully being of some help myself as well!