twin yamaha outboards w triple battery hookup

[rosa vargas]

Hola Amigos:
Is there a diagram or internet website I could acccess to find out how
to hookup twin engines with 3 batteries.It is for 2- 250hp 4 strokes yamaha outboards.I was told this hookup is the recommended way Thanks ao all

[boats.net]

Here is one option,
BatInstall twinEng_3Bat.pdf