Arctic Cat 2010 ATV 150 Service Manual Download

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5-9

KM458A

3. Turn the ignition switch to the ON position. The

meter must read battery voltage.



NOTE: If battery voltage is not shown on the

meter, troubleshoot the battery connections,
ground connections, and starter cable connec-
tions.

4. With the transmission in neutral, depress the

starter button. There should be an audible “click”

from the starter relay and the meter should show 0

DC volts. If the meter indicates as specified,

replace the starter. If there is no audible click and

meter reads battery voltage, proceed to step 5.

5. Disconnect the two-wire connector on the starter

relay pigtail from the main harness; then on the

harness side, connect the red tester lead to the yel-

low/red wire and the black tester lead to the yel-

low/green wire.

6. With the transmission in neutral, depress the

starter button. The meter must read battery volt-

age. If battery voltage is indicated, replace the

starter solenoid. If no voltage is indicated, trouble-

shoot the gear position switch, starter button, igni-

tion switch, or harness connectors.

CDI Unit

The CDI is located beneath the seat at the rear of the

gas tank.



NOTE: The CDI unit is not a serviceable compo-

nent. If the unit is defective, it must be replaced.

The CDI is rarely the cause for electrical problems;

however, if the CDI is suspected, substitute another

CDI unit to verify the suspected one is defective.



NOTE: Prior to replacing the CDI unit to assure

the CDI unit is defective, it is advisable to perform
a CDI peak voltage test (see Ignition Coil in this
section) and/or perform a continuity test of the wir-
ing harness from the CDI connector to the CDI
unit.

Regulator/Rectifier

The regulator/rectifier is located on the right side of

the frame above the rear wheel. Verify all other charg-

ing system components before the regulator/rectifier is

replaced.

TESTING

1. Start the engine and warm up to normal operating

temperature; then connect a multimeter to the bat-

tery as follows.

2. Select the DC Voltage position; then connect the

red tester lead to the positive battery post and the

black tester lead to the negative battery post.

3. Start the engine and slowly increase RPM. The

voltage should increase with the engine RPM to a

maximum of 15.5 DC volts.



NOTE: If voltage rises above 15.5 DC volts, the

regulator is faulty or a battery connection is loose
or corroded. Clean and tighten battery connec-
tions or replace the regulator/rectifier. If voltage
does not rise, check Voltage (Stator Coil - No Load)
sub-section. If charging coil voltage is normal,
replace the regulator/rectifier.

Start-in-Gear Relay



NOTE: The relay schematic is embossed on the

relay housing for testing continuity.



NOTE: The module and wiring harness are not a

serviceable component and must be replaced as
an assembly.

TESTING

The start-in-gear relay is located under the seat below

the fuse block. To test the relay, use the following pro-

cedure.

1. Turn the ignition switch to the ON position; then