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Snowmobile Arctic Cat (2002 year). Instruction - part 78

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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 of resistance

between the ignition switch terminals.

4. Rotate the key to the RUN position.
5. The meter must indicate OL (infinite resistance).

Testing Electrical

Resistances

(600 cc Triple Model)

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 spade connectors from the ignition

coil body.

2. Set the selector in the X1 position.
3. Connect the red meter lead to the positive spade

terminal; then connect the black meter lead to the

negative spade terminal.

AK051D

4. Ignition coil primary resistance must be between

0.29-0.39 ohm.

IGNITION COIL (Secondary)

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

wires.

2. Set the selector in the X1K position.
3. On the dual lead coil, connect the red meter lead to

one high tension wire; then connect the black

meter lead to the other high tension wire.

4. On the single lead coil, connect the red meter lead

to one high tension wire; then connect the black

meter lead to the positive spade terminal.

AK050D

5. Ignition coil secondary resistance must be between

6320-9480 ohms on both coils.

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traditional charge coil(s) have been replaced by a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.

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IGNITION TIMING SENSOR

1. Disconnect the two timing sensor leads (green/

white and brown) from the CDI unit.

2. Set the selector in the X10 position; then connect

the meter leads to the sensor leads.

3. Ignition timing sensor resistance must be between

80-120 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 of 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

(800 cc Carbureted 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

0.24-0.36 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.

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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 0.52-

0.78 ohm.

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) from the CDI unit.

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.

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).

Testing Electrical

Resistances

(570/1000 cc 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 (570 cc) or the spade

connectors from the external coil body (1000 cc).

5-34

2. Set the selector in the X1 position.
3. Connect the red meter lead to the orange wire in

the plug (570 cc) or to the positive spade terminal

(1000 cc); then connect the black meter lead to the

black wire in the plug (570 cc) or to the negative

spade terminal (1000 cc).

AK051D

4. Ignition coil primary resistance must be between

0.25-0.34 ohm (570 cc) or between 0.29-0.39 ohm

(1000 cc).

IGNITION COIL (Secondary)

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

wires.

2. Set the selector in the X1K position.
3. On the 570 cc, connect the red meter lead to one

high tension wire; then connect the black meter

lead to the other high tension wire.

4. On the dual lead coil (1000 cc), connect the red

meter lead to one high tension wire; then connect

the black meter lead to the other high tension wire.

AK050D

5. On the single lead coil (1000 cc), connect the red

meter lead to one high tension wire; then connect

the black meter lead to the positive spade terminal.

6. Ignition coil secondary resistance must be between

6800-10,200 ohms (570 cc) or between 6320-9480

ohms on both coils (1000 cc).

CHARGE COIL (1)

1. Disconnect the three-wire plug (570 cc) or the

four-wire plug (1000 cc) 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 (570 cc) or the

four-wire plug (1000 cc) 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.

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.

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