Have Boat Questions? Ask a Boat Repair Expert.
Thank you for allowing me to assist you, my name is Joe and I will be happy to assist you with your concern today.
I see nothing in terms of load testing the battery, so I would ask that if you have not already done so that you have the battery professionally load tested and if it is good then I would need to know when you try to start if you get 12v on the small wire to the starter solenoid, if so you then need to check for main batt supply in 12v and during cranking 12v out on other large cable to starter, if not then solenoid is the issue, if no 12v signal during cranking at the solenoid then check grounds, battery, wiring/connections, key, start button.
From there we can preform other tests after the above is done so that we have more info on where the problem is.
Please rate my answer when ready. Bonuses are appreciated.
If for any reason you are not satisfied please reply back to me for further assistance to which I will be glad to help you. If you have any problems for any reason please reply back and let me know.
Thanks again for using justanswer and have a great day!
If you need any further assistance you can reply back at any time for my help.
I'd be happy to answer any other questions you have even if not related.