wsm wg972-e4, Workshop Manual

Page: 85 / 153

ENGINE
WG972-E4, WSM
1-M24
Key Switch
The key switch has 4 positions. The terminal "30" is
connected to the battery.
It is released at the "START" position and returns to
the "ON" position.
[START]
When the key is turned to the "START" position,
through the "ON" position the current supplied to the
starter to regulator, oil lamp and accessory.
50 to starter
30 from battery
AC to regulator, oil lamp and accessory
[ON]
Only the terminal "AC" is connected to the battery.
At any position of the key except the "OFF" position, the
terminal "AC" is connected to the "30" terminal.
30 from battery
AC to regulator, oil lamp and accessory
9Y1211108ENM0042US0
[2] CHARGING SYSTEM
(1) General
The function of the charging device is to charge batteries.
9Y1211108ENM0043US0
(2) IC Regulator Built-in Type Alternator
The alternator is the incorporated with an IC
regulator, this has been made small size and light weight
by the semiconductor technique of the IC regulator.
The cooling property and safety is improved by
incorporating the cooling fan and roller that is an integral
structure.
Further, the serviceability is also improved by
facilitating mounting and removal of the rectifier and IC
regulator.
9Y1211108ENM0044US0
(1) Pulley
(2) Rotor
(3) Brush (4) Cover
(5) Drive and Frame
KiSC issued 07, 2015 A