My boat that I bought a few months ago has an hours gauge that's stopped at ~76h, but from tach needle position and lights at startup I think it's actually around 180h. So:
1) The hours meter only rolls when the motor is running (right?) so is there any way to debug this problem with the boat on a trailer, preferably without the motor running? I suppose I can just take the gauge out and give it 12V power for a while and see if it rolls forward, but I'd like to see if there's actually power from the motor...
2) To correct the hours, should I just let it run on a 12V power supply for a while until it's correct? I don't want to accidentally go over...
3) I have the service manual pdf but it doesn't explain any way to get an accurate reading from the motor. I suppose it's done with some specialized motor code checker.
Thanks!
1) The hours meter only rolls when the motor is running (right?) so is there any way to debug this problem with the boat on a trailer, preferably without the motor running? I suppose I can just take the gauge out and give it 12V power for a while and see if it rolls forward, but I'd like to see if there's actually power from the motor...
2) To correct the hours, should I just let it run on a 12V power supply for a while until it's correct? I don't want to accidentally go over...
3) I have the service manual pdf but it doesn't explain any way to get an accurate reading from the motor. I suppose it's done with some specialized motor code checker.
Thanks!