New boat with Yamaha 225 4 stroke died.

[sjcordova]

I replied on a thread about a Yamaha 200 with 9 hours not starting. I also had the same issue with mine at 9.7 hours. I will check the grounds. My questions are this. I have one battery but a pos. lead and switch for another battery. Did my playing of the stereo and having the fishfinder on while cruising, draw the battery down to the point that my motor died and would not re start. The switch is in position one, by adding a battery for position two, would this be considered my acc. battery? What kind of battery is best and how can I be sure what it is powering? If it matters, my motor is powering a SD240 Hurricane.

 

[rodbolt]

Re: New boat with Yamaha 225 4 stroke died.

if you manage to drain the battery without the engine running then it wont start.
the charging system on the F225 is more than sufficint to power a stereo when running, or at least most .
the output of the system at idle speed is about 20 amps and the engine needs about 9 amps just to run.
use your dealer locator function. find a dealer near you with at least a master tech employed.
then for your aux battery have them use not only the off, batt 1 ,batt2,both switch but set up the house battery using the auxilery charging lead that is on the engine from the factory.
never again will you kill your starting battery.
all US market V6 engines from about 1995 have a provision on the regulator/rectifier to add isolated charging with only hull wiring.
nice design, built in battery isolator that 99% of all riggers and probably 1/2 the techs dont know about.
but on your F225 it is there.