5-2
Specifications
Testing Electrical
Components
All of the electrical tests should be made using the
Fluke Model 73 Multimeter (p/n 0644-191). If any
other type of meter is used, readings may vary due to
internal circuitry. When troubleshooting a specific
component, always verify first that the fuse is good,
that the bulb is good, that the connections are clean
and tight, that the battery is fully charged, and that all
appropriate switches are activated.
NOTE: For absolute accuracy, all tests should
be made at room temperature (approximately 68°
F).
Timing Sensor
Disconnect the single connector adjacent to the AC
generator plug.
PEAK VOLTAGE
NOTE: All of the peak voltage tests should be
made using the Fluke Model 73 Multimeter (p/n
0644-191) with Peak Voltage Reading Adapter (p/n
0644-307). If any other type of tester is used, read-
ings may vary due to internal circuitry.
NOTE: The battery must be at full charge for this
test.
1. Set the meter selector to the DC Voltage position.
2. Connect the red tester lead to the blue wire; then
connect the black tester lead to a suitable ground.
3. Crank the engine over using the electric starter.
The meter must read 1.2-2.0 volts.
RESISTANCE
1. Set the meter selector to the OHMS position.
2. Connect the red tester lead to the blue wire; then
connect the black tester lead to a suitable ground.
3. The meter must read 80-160 ohms.
CDI/Ignition Coil
Disconnect the wires at the coil.
PEAK VOLTAGE
NOTE: All of the peak voltage tests should be
made using the Fluke Model 73 Multimeter (p/n
0644-191) with Peak Voltage Reading Adapter (p/n
0644-307). If any other type of tester is used, read-
ings may vary due to internal circuitry.
NOTE: The battery must be at full charge for this
test.
1. Set the meter selector to the DC Voltage position.
2. Connect the red tester lead to the black/yellow
wire; then connect the black tester lead to the
green wire.
3. Crank the engine over using the electric starter.
The meter must read 190-282 volts.
IGNITION
Ignition Type
CDI
Spark Plug Type
CR7HSA
Spark Plug Gap
0.6-0.7 mm
(0.024-0.028 in.)
Spark Plug Cap
4725-5775 ohms
Ignition Coil (primary)
Resistance
(secondary)
Less than 1 ohm
(terminal to terminal)
2830-3170 ohms
(high tension - plug cap
removed - to ground)
MAGNETO
Timing Sensor(peak voltage)
(resistance)
1.2-2.0 DC volts
(blue to ground)
80-160 ohms
(blue to ground)
Regulator/Rectifier
12.1-15.2 DC volts@ 3000 RPM
(white to black)
CDI/Ignition (peak voltage)
Coil
190-282 DC volts
(black/yellow to green)
Stator Coil(no load)
16.0-19.5 AC volts @3000 RPM
(yellow to white)
Magneto Coil Resistance
Less than 1 ohm
(yellow to white)
Choke Circuit(voltage)
4.0-5.5 AC volts
(yellow to green/black)
FOR ARCTIC CAT ATV DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983
www.mymowerparts.com
