Great video! Okay, long comment alert😂. I’ve had these problems with my ‘21 Fish Pro. I installed the BRP auxiliary battery kit but it’s flawed. The kit comes with a non-replaceable, inline fuse. I would go out with both batteries fresh off the charger at home just to have my ski not start once I launched. I think my main battery is bad and when trying to start the engine, the fuse to my second battery had blown. I couldn’t figure out why my ski wouldn’t start with two batteries. I put a different style marine fuse in and it instantly blew as well when trying to start my ski. I still need to replace my main battery but I ended up installing a marine grade, two-battery switch that lets me run one, two or no batteries. That way I know I have full battery power at start up. I also carry one of those super compact jumper batteries that practically fit in a coat pocket. I would definitely recommend carrying one. Mine literally saved me from being swept out of a jetty as the tide was ripping out. As far as the spark plugs go, I’d recommend getting a spark plug socket that has a rubber grommet in it to hold the plug. Dropping them into the holes can close the gap on the plugs and cause them not to work as well or at all. I watched your windshield video before this one. Really good info!

Usually I don't comment but this is awesome information, wish we knew this 2 years ago. It happened to my wife and I one month into using it. We got towed back, no one we contacted could help. We replace the battery with another skis battery and luckly found someone near that had a diagnostic computer. He deleted the codes for low battery and couldn't find anything else. Finally, he took the sparkplugs out to check for spark, and then it turned on.

Again always great videos, still waiting for you to make one with you spot lock and live well set up lol. Im here because my 23 trophy left me stranded yesterday. All bone stock with the Hijuu for both. I believe I ran my livewell on and off to keep bait alive a little too long. Luckily i carry a battery pack jump starter that was able to get me started and back to the dock. it died right at the dock. What I learn about these two battery system and responding to what you read, They all run as one, there isnt a fail safe if one is drain it wont take from your main. Now im searching for new and more reliable batteries because this one wont come back to life. Unless I jump it, itll start but wont hold charge. I really do wish accessories ran on the second battery and the main battery is strictly use to turn over the engine. Nothing worst than being Solo with nobody in site and your ski wont turn over.

Depressing the throttle completely while cranking will signal the ecu to not inject any fuel. Sometimes this alone will help clear a flooded engine.

Regarding slow towing...You can install a valve that cuts off the water flow to the engine when towing and with that engaged, you can tow as fast as you need. Another option is to have a hose clamp. Just gotta know which hose to clamp.

Dumb question but I've taken my new trophy out 5 times. Should I be charging my battery? I haven't yet but I'm not sure if that's something I need to do. I take it out every 3 days since I've had it

One thing I would not use a Plain ole regular deep well socket for the spark plugs when a Proper Spark plug socket is so inexpensive that has a rubber insert to hold the plug and bring it out of the plug well no plyers needed.