Yamaha T8 Rigging Manual page 137

Outboard Rigging Guide - 2001
Dual Battery Installation
(Recommended Battery Wiring
Without Accessory Battery Switch)
WARNING
Improper battery connections or wire size
selection may result in a fire.
1. When one battery is used, connect the two red
cables to the (+) terminal. If the smaller red
cables is left unconnected, an accidental con-
tact of the red cable with the (-) terminal of
the battery will form a short circuit and may
cause a fire.
2. When using an accessory battery, a negative
connecting cable must be installed between
the accessory battery and the main battery.
This cable must be equivalent to the main
battery cable.
3-26
Battery Installations