Ignition Timing; Tilt Sensor - Arctic Cat 2015 XR Service Manual

1. Set the meter selector to the DC Voltage position.
2. Connect the red tester lead to the red/blue wire; then
connect the black tester lead to the black wire.
3. With either brake applied, the meter must show bat-
tery voltage.
 NOTE: If the meter shows no voltage, inspect fuses,
wiring harness, connectors, and switches.

Ignition Timing

The ignition timing cannot be adjusted; however, verifying
ignition timing can aid in troubleshooting other components.
To verify ignition timing, use the following procedure.
1. Attach the Timing Light to the spark plug high ten-
sion lead; then remove the timing inspection plug
from the left-side crankcase cover.
2. Using the Tachometer, start the engine and run at
1500 RPM; ignition timing should be 10° BTDC.
3. Install the timing inspection plug.
If ignition timing cannot be verified, the rotor may be
damaged, the key may be sheared, the trigger coil/CKP
sensor bracket may be bent or damaged, or the ECM may
be faulty.

Tilt Sensor

! WARNING
Incorrect installation of the tilt sensor could cause sud-
den loss of engine power which could result in loss of
vehicle control resulting in injury or death.
CAUTION
Do not drop the tilt sensor as shock can damage the
internal mechanism.
SUPPLY VOLTAGE
1. Disconnect the three-wire connector from the sensor;
then select DC Voltage on the multimeter and con-
nect the red tester lead to the orange wire (C) and the
black tester lead to the pink/black wire (A).
134
2. Turn the ignition switch to the ON position. The
multimeter should read battery voltage. If battery
voltage is not indicated, check the 30-amp main and
10-amp ignition fuses, wiring harness, or the ignition
switch.
3. Remove the red tester lead and connect to the
blue/brown wire (B). The multimeter should read
approximately 2.5 DC volts. If the specified voltage
is not indicated, check wire connections at the ECM
or substitute another ECM to verify the test.
OUTPUT VOLTAGE
 NOTE: Needle adapters or a "break-out" harness
will be required on the multimeter leads as the follow-
ing tests are made with the sensor connected.
1. Connect the three-wire plug to the sensor; then
remove the right-side mounting screw securing the
sensor to the rear frame.
CD706A
CD706B
CD707