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Snowmobile Arctic Cat (2004 year). Instruction - part 65

5-27

3. The meter must read less than 1 ohm resistance

between the ignition switch terminals.

4. Rotate the key to the RUN position.

5. The meter must read OL (infinite resistance).

Testing Electrical

Resistances

(500 w/o APV/570 cc Models)

NOTE: Resistance tests of the engine electrical

components should be made using the Fluke Mul-
timeter only. Analog-style multitesters may not be
accurate enough to use in these critical tests.
Replace any component that does not have a test
value within specifications.

IGNITION COIL (Primary)

1. Disconnect the double wire plug from the CDI

unit to the ignition coil.

2. Set the selector in the X1 position.

3. Connect the red meter lead to the orange wire in

the plug; then connect the black meter lead to the
black wire in the plug.

AK051D

4. Ignition coil primary resistance must be between

0.25-0.34 ohm.

IGNITION COIL (Secondary)

1. Remove the spark-plug caps from the high tension

wires.

2. Set the selector in the X1K position.

3. Connect the red meter lead to one high tension

wire; then connect the black meter lead to the
other high tension wire.

AK050D

4. Ignition coil secondary resistance must be between

6800-10,200 ohms.

CHARGE COIL (1)

1. Disconnect the three-wire plug from the CDI unit

to the magneto.

2. Set the selector in the X1 position.

3. Connect the red meter lead to the black/red wire in

the plug; then connect the black meter lead to the
green/red wire in the plug.

AK014

4. Charge coil (1) resistance must be between 12-18

ohms.

CHARGE COIL (2)

1. Disconnect the three-wire plug from the CDI unit

to the magneto.

2. Set the selector in the X1 position.

3. Connect the red meter lead to the brown/white

wire in the plug; then connect the black meter lead
to the green/red wire in the plug.

5-28

AK013

4. Charge coil (2) resistance must be between 12-18

ohms.

IGNITION TIMING SENSOR

1. Disconnect the green/white and brown wires from

the timing sensor to the main harness.

AO102D

2. Set the selector in the X10 position.

3. Connect the red tester lead to the green/white wire;

then connect the black tester lead to the brown
wire.

4. Ignition timing sensor resistance must be between

148-222 ohms.

LIGHTING COIL

1. Disconnect the main wiring harness from the

engine.

2. Set the selector in the X1 position.

3. Connect the two meter leads to each of the yellow

leads in the connector from the engine.

AK015

4. Lighting coil resistance must be between 0.12-

0.18 ohm.

SPARK-PLUG CAP

1. Remove the spark-plug caps from the high tension

wires.

2. Set the selector in the X1K position.

3. In turn on each cap, touch a tester lead to each end

of the spark-plug cap.

B170

4. Spark-plug cap resistance must be between 4000-

6000 ohms.

IGNITION SWITCH

1. Remove the main wiring harness connectors from

the ignition switch.

2. Rotate the key to the OFF position.

3. The meter must read less than 1 ohm resistance

between the ignition switch terminals.

4. Rotate the key to the RUN position.

5. The meter must read OL (infinite resistance).

5-29

Testing Electrical

Resistances

(600/700 “Laydown” Carb Models)

NOTE: Resistance tests of the engine electrical

IGNITION COIL (Primary)

1. Disconnect the double wire plug from the CDI unit

to the ignition coil.

2. Set the selector in the X1 position.

3. Connect the red meter lead to the orange lead; then

connect the black meter lead to the black lead.

AK051D

4. Ignition coil primary resistance must be between

0.27-0.41 ohm.

IGNITION COIL (Secondary)

1. Remove the spark-plug caps from the high tension

wires.

2. Set the selector in the X1K position.

3. Connect the red meter lead to one high tension

wire; then connect the black meter lead to the
other high tension wire.

AK050D

4. Ignition coil secondary resistance must be between

6800-10,200 ohms.

DC POWER COIL

NOTE: On APV-equipped carbureted models, the

traditional charge coil(s) have been replaced by a
single DC power coil on the stator.

1. Disconnect the two plugs (red/yellow and yellow/

red) from the CDI unit to the DC power coil.

2. Set the selector in the X1 position.

3. Connect the red meter lead to one wire; then

connect the black meter lead to the other wire.

4. DC power coil resistance must be between 0.71-

1.07 ohms.

LIGHTING COIL

1. Disconnect the main wiring harness from the

engine.

2. Set the selector in the X1 position.

3. Connect the two meter leads to each of the yellow

leads in the connector from the engine.

AK015

4. Lighting coil resistance must be between 0.08-

0.12 ohm.

IGNITION TIMING SENSOR

1. Disconnect the two timing sensor leads (green/

white and brown/green) from the CDI.

2. Set the selector in the X100 position; then connect

the meter leads to the sensor leads.

3. Ignition timing sensor resistance must be between

148-222 ohms.

SPARK-PLUG CAP

1. Remove the spark-plug caps from the high tension

wires.

2. Set the selector in the X1K position.

3. In turn on each cap, touch a tester lead to each end

of the spark-plug cap.

5-30

B170

4. Spark-plug cap resistance must be between 4000-

6000 ohms.

IGNITION SWITCH

1. Remove the main wiring harness connectors from

the ignition switch.

2. Rotate the key to the OFF position.

3. The meter must read less than 1 ohm resistance

between the ignition switch terminals.

4. Rotate the key to the RUN position.

5. The meter must read OL (infinite resistance).

Peak Voltage Tests

(Fan Cooled Models)

NOTE: The following tests should be made using

the Fluke Model 73 Multimeter (p/n 0644-191) with
Peak Voltage Reading Adapter (p/n 0644-307).

NOTE: Peak voltage test specifications are on

the Electrical Specifications (Individual) pages in
this section.

The Fluke Multimeter w/Adapter can perform the fol-
lowing tests.

A. Stator/Charge Coil(s) Output

B. Lighting Coil Output

C. Primary Coil Output

D. Voltage Regulator Output

NOTE: Peak Voltage Tests were made with con-

nectors plugged in, spark plugs removed and
grounded, and by pulling the recoil starter rope
briskly.

STATOR (Charge) COIL OUTPUT
(370/440 cc)

1. Connect the red meter lead to the red/white wire

from the stator; then connect the black meter lead
to the black/red wire from the stator.

2. Pull the recoil starter rope briskly. Meter reading

must be within specification.

LIGHTING COIL OUTPUT

1. Connect the red meter lead to one yellow wire;

then connect the black meter lead to the other
yellow wire.

2. Pull the recoil starter rope briskly. Meter reading

must be within specification.

CHARGE COIL (1) OUTPUT
(570 cc)

1. Connect the red meter lead to the black/red wire;

then connect the black meter lead to the green/red
wire.

2. Pull the recoil starter rope briskly. Meter reading

must be within specification.

CHARGE COIL (2) OUTPUT
(570 cc)

1. Connect the red meter lead to the brown/white

wire; then connect the black meter lead to the
green/red wire.

2. Pull the recoil starter rope briskly. Meter reading

must be within specification.

PRIMARY COIL OUTPUT

1. Connect the red meter lead to the orange wire;

then connect the black meter lead to the black
wire.

2. Pull the recoil starter rope briskly. Meter reading

must be within specification.

VOLTAGE REGULATOR OUTPUT

NOTE: To conduct this test, use the multimeter

set on the A.C. Volt scale.

1. Connect the red meter lead to the yellow wire

from the regulator; then connect the black meter
lead to the brown wire from the regulator.

2. Pull the recoil starter rope briskly. Meter reading

must be within specification.

!WARNING

Most voltages generated by the ignition system
are sufficient to interrupt pacemakers! All techni-
cians, especially those using pacemakers, must
avoid contact with all electrical connections
when making these tests.

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