14
Yes
Yes
Yes
Check for
shorted wires.
No
No
No
Engine is not
running.
Attach voltmeter
to negative and
positive posts of
battery.
Does voltmeter
read 12.2 volts
or above?
Test and
recharge battery.
Start engine and
observe battery
voltage at full
throttle.
Is voltage at
battery between
13 and 14.7
volts?
Disconnect
regulator-rectifier
plug. Place AC
voltmeter across
AC terminals in
plug and read
voltage.
Does voltage
read less than
28 volts AC with
engine running?
If AC voltage
measures more
than 28 volts
replace regulator-
rectifier.
For more
detailed testing
consult the
engine repair
manual.
Battery is in
good condition.
Charging system
is functioning
properly.
Service stator.
Notes:
1. Voltage tests are performed
with a DC/AC voltmeter.
2. Tests are performed after
regulator fuse is checked.
3. AC voltage tests are performed
with engine at 3600 rpm.
MODEL 612, 614, 616, and 718
(Briggs & Stratton Vanguard
engines)
MODEL 718K and 720K
(Kohler Magnum & Command
engines)
BATTERY CHARGING SYSTEM
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