Arctic Cat Panther 1974 Manual page 100

LIGHTING SYSTEM TESTING
3. I n the engine connector plug, connect one
lead of the voltmeter to the common green
wire and yellow wire terminal, and the other
lead to the common green wire terminal
having a black tracer and yellow wire having a
green and black tracer, Fig. IV -26.
Fig.IV·26
AC - DC
'odtmeter
,.<.;; ''"'
/" 1~ X.\
o. c V
AC.
"-
"-
"-
~ .
GrnYel
Grn
. ,w/Blk
/ '
,/ Vel w/Grn
and Blk
4. Start the engine and allow it to idle. The
voltmeter is to register some degree of AC
voltage (approximately 10-15 volts), Fig.
IV-26. Grasp the throttle and accelerate
slightly. As the engine RPM increases, the
voltmeter is to register 20-30 AC volts.
5.
CAUTION
Make sure AC voltmeter has the capacity to test
in excess of 30 AC volts. High engine RPM can
cause high voltage and, as a result, damage
on-line components (AC voltmeter, etc.).
If the AC voltage output is 10-15 volts at idle
and, also, raises to 20-30 volts when slight
acce I e ration takes place, the magneto
alternator (lighting coils) is satisfactory and
indicates a wiring circuit problem. If the
output is not satisfactory, the magneto
alternator is malfunctioning and must be
checked further (see Check Magneto
Alternator, page IV-21). Shut engine off and
remove the Quik Jack.
6. An alternate method of testing the magneto
alternator (lighting coils) is with the use of an
ohmmeter (see Check Resistance of Lighting
Coils, page IV-16).
IV-16
Check Resistance of Lighting Coils
Equipment Necessary: Electro-Specialties
Ohmmeter Model No. PC2
1. Disconnect the main wiring harness from the
engine connector block.
2. I n the engine connector plug, connect one
lead of the ohmmeter to the common green
wire and yellow wire terminal, and the other
lead to the common green wire terminal
having a black tracer and yellow wire terminal
having a green and black tracer, Fig. IV -27.
Fig.IV-27
@
@
ddjust off
3. The ohmmeter is to register a resistance value
of 0.25-0.28, which is actually a parallel
reading of the 100 watt and 23 watt lighting
coils.
4. If the ohmmeter registers resistance value of
0.25-0.28, the magneto alternator (lighting
coils) is satisfactory and indicates a wiring
circuit problem (see Check Voltage Regulator,
page IV-17). If the ohmmeter does not
register a resistance value of 0.25-0.28, the
magneto alternator is malfunctioning and
must be checked further (see Check Magneto
Alternator, page IV-21).
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