Arctic Cat Sno Pro 120 2011, Service Manual

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5
5-9
TZ119A
3. Install the screw(s), flat washer(s), and lock
washer(s) securing the sensor to the throttle body. Do
not tighten at this time.
4. Adjust the TPS - see Adjusting TPS in this sub-sec-
tion.
5. Disconnect the adjustment tool harness from the
TPS. Connect the snowmobile TPS harness to the
newly installed or adjusted TPS.

NOTE: Before installing the TPS harness connector,
apply dielectric grease to the connector pins.

NOTE: On the non-turbo models, install the air
silencer. Proceed to Air Silencer (1100 cc Non-Turbo)
sub-section in Section 3 and follow steps 3-12 of
INSTALLING.
Testing Electrical
Resistances (500/600 cc)

NOTE: Resistance tests of the engine electrical
components should be made using the Fluke Multim-
eter only. Analog-style multitesters may not be accu-
rate enough to use in these critical tests. Replace any
component that does not have a test value within
specifications.
CHARGE COIL (1)
1. Disconnect the triple-wire plug from the magneto.
2. Set the selector in the OHMS 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.
4. Charge coil (1) resistance must be 8.8-13.2 ohms.
CHARGE COIL (2)
1. Disconnect the triple-wire plug from the magneto.
2. Set the selector in the OHMS 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.
4. Charge coil (2) resistance must be 8.8-13.2 ohms.
FUEL PUMP COIL
1. Test between the two orange wires in the four-prong
connector from the stator.
2. Meter reading must be 1.52-2.28 ohms.
INJECTION COIL
1. Test between the two blue/white leads in the connec-
tor harness from the stator plate.
2. Meter reading must be 15.2-22.8 ohms.
LIGHTING COIL
1. Disconnect the three wire connector from the mag-
neto.
2. Set the selector in the OHMS position.
3. Connect the two meter leads to each of the yellow
leads in the connector from the lighting coil.
4. Lighting coil resistance must be 0.08-0.12 ohm.
IGNITION TIMING SENSOR
1. Disconnect the sensor connector (green/white and
brown/green) from the magneto.
2. Set the selector in the OHMS position; then connect
the meter leads to the sensor leads.
3. Sensor resistance must be 80.8-121 ohms.
IGNITION COIL (Primary)
1. Disconnect the double wire plug from the ignition
coil.
2. Set the selector in the OHMS position.
3. Connect the red meter lead to the orange/black lead;
then connect the black meter lead to the orange/red
lead.
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 OHMS position.
3. Connect the red meter lead to one high tension wire;
then connect the black meter lead to the other high
tension wire.
4. Ignition coil secondary resistance must be between
6800-10,200 ohms.
SPARK-PLUG CAP
1. Remove the spark-plug caps from the high tension
wires.
2. Set the selector in the OHMS position.
3. In turn on each cap, touch a tester lead to each end of
the spark-plug cap.
4. Spark-plug cap resistance must be between 4000-
6000 ohms.
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