5-13
5
NOTE: If battery voltage is not shown in any test,
inspect the LIGHTS fuse, battery, main wiring har-
ness, connectors, or the left handlebar switch.
Taillight - Brakelight
The connector is the 3-prong one located under the rear
fender assembly.
VOLTAGE (Taillight)
NOTE: Perform this test on the main harness side of
the connector. Also, the ignition switch should be in
the LIGHTS position.
1. Set the meter selector to the DC Voltage position.
2. Connect the red tester lead to the white wire; then
connect the black tester lead to the black wire.
3. With the ignition key in the LIGHTS position, the
meter must show battery voltage.
NOTE: If the meter shows no voltage, inspect fuses,
wiring harness, connectors, and switches.
VOLTAGE (Brakelight)
NOTE: Perform this test on the main harness side of
the connector. Also, the ignition switch should be in
the ON position and the brake (either foot pedal or
hand lever) must be applied.
NOTE: Make sure the brake lever (hand) and brake
pedal (auxiliary) are properly adjusted for this proce-
dure.
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
battery voltage.
NOTE: If the meter shows no voltage, inspect bulb,
fuses, wiring harness, connectors, and switches.
Ignition Timing
The ignition timing cannot be adjusted; however, verify-
ing ignition timing can aid in troubleshooting other com-
ponents. 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 may be
bent or damaged, or the CDI unit may be faulty.
Troubleshooting
Problem: Spark absent or weak
Condition
Remedy
1.
Ignition coil
defective
2.
Spark plug
defective
3.
Magneto
defective
4.
CDI unit
defective
5.
Pick-up coil
defective
1. Replace ignition coil
2. Replace plug
3. Replace magneto
4. Replace CDI unit
5. Replace pick-up coil
Problem: Spark plug fouled with carbon
Condition
Remedy
1.
Mixture
too rich
2.
Idling RPM
too high
3.
Gasoline
incorrect
4.
Air cleaner element
dirty
5.
Spark plug
incorrect (too cold)
6.
Valve seals
cracked - missing
7.
Oil rings
worn - broken
1. Adjust carburetor
2. Adjust carburetor
3. Change to correct gasoline
4. Clean element
5. Replace plug
6. Replace seals
7. Replace rings
For Discount Arctic Cat Parts Call 606-678-9623 or 606-561-4983
www.mymowerparts.com