Malfunctioning no wake sensor on both engines

[Funtacular]

So both of my engines flash a 68 Malfunctioning No Wake sensor/switch on startup. Anyone able to clue me into where this sensor/switch is so that I can try to troubleshoot what is wrong with it? I would really like for those error lights to reflect that everything is running nice nice!

 

[Scottintexas]

Many times no wake issues are battery voltage related
There's a couple of threads in the FAQ about it

 

[Gym]

Having the same sensor go on both engines is unlikely. I agree with @Scottintexas.

 

[Funtacular]

I did have a peek at the FAQ's as well as search around a bit but was not able to find relevant information. I can try tinkering with the throttle stop screw referenced in one post but he did not seem to be dealing with the 68 error codes. This looks to show some promise: https://jetboaters.net/threads/error-code-68.2242/

 

[Funtacular]

I thought so too @Gym . I know the guy I bought the boat from did some interesting wiring for sound system and LED lighting so maybe voltage makes sense. I am not the sharpest tool in the shed when it comes to wiring but am willing to try. Can you give me an idea of what to test to verify voltage is ok?

 

[Gym]

I thought so too @Gym . I know the guy I bought the boat from did some interesting wiring for sound system and LED lighting so maybe voltage makes sense. I am not the sharpest tool in the shed when it comes to wiring but am willing to try. Can you give me an idea of what to test to verify voltage is ok?

I would start with the battery. Is your boat a single battery install? If it is the previous owner used it for starting and blasting music so it took a lot of abuse. How old/healthy is it? Possibly you could pull one of your healthy car batteries and put it in the boat to see if that resolves the issue. You could also take your battery to a local Auto Zone to have it tested free. If you do have to replace it make sure you get a marine rated battery.

 

[Funtacular]

@Gym It has two batteries in it. I put both on charger and they charged and reported healthy. I think it was likely a start and blast scenario but with the batteries showing healthy I am not sure. They are both Interstate Marine 24M-XHD. Just eyeballing the way everything is wired I am not 100% confident in it but I have very little experience with the "right" way. There was a decent amount of rust/corrosion on the fittings but I cleaned that up pretty good.

 

[Gym]

@Gym It has two batteries in it. I put both on charger and they charged and reported healthy. I think it was likely a start and blast scenario but with the batteries showing healthy I am not sure. They are both Interstate Marine 24M-XHD. Just eyeballing the way everything is wired I am not 100% confident in it but I have very little experience with the "right" way. There was a decent amount of rust/corrosion on the fittings but I cleaned that up pretty good.

Rust & corrosion will cause problems. You also want to check your ground cables where they connect to the motor.

 

[Funtacular]

Thanks Gym. Will pull them off and do a better cleaning on them as well as the grounds. I only recently learned how important grounding was when I fixed the lighting on my trailer! The split tongue was not carrying the ground through the frame to the back and thus lights were failing. I tapped a ground on the boat side of the tongue split and huzzah everything lights up beautifully!

 

[Gym]

Trailer lighting is a great example of the need for good grounding as various electrical components on a trailer get wet regularly. Electricity, like water, needs a path to flow.