Starting System; Troubleshooting; Voltage Drop Test; Starter Motor Removal - Polaris ACE 900 2017 Service Manual

STARTING SYSTEM

TROUBLESHOOTING

Starter Motor Does Not Run
• Brake pedal not applied
• Battery discharged
• Loose or faulty battery cables or corroded connections
(see Voltage Drop Tests)
• Related wiring loose, disconnected, or corroded
• Poor ground connections at battery cable, starter
motor or starter solenoid (see Voltage Drop Tests)
• Faulty key switch
• Faulty starter solenoid or starter motor
• Engine problem - seized or binding (can engine be
rotated easily)
Starter Motor Turns Over Slowly
• Battery discharged
• Excessive circuit resistance - poor connections (see

Voltage Drop Test)

• Engine problem - seized or binding (can engine be
rotated easily)
• Faulty or worn brushes in starter motor
Starter Motor Turns - Engine Does Not Rotate
• Faulty starter drive
• Faulty starter drive gears or starter motor gear
• Faulty flywheel gear or loose flywheel
VOLTAGE DROP TEST
The Voltage Drop Test is used to test for bad
connections. When performing the test, you are testing
the amount of voltage drop through the connection. A
poor or corroded connection will appear as a high
voltage reading. Voltage shown on the meter when
testing connections should not exceed 0.1 VDC per
connection or component.
To perform the test, place the meter on DC volts and
place the meter leads across the connection to be tested.
Refer to the voltage drop tests.
Voltage should not exceed
0.1 DC volts per connection
9929422 R02 - 2017-2019 ACE 900 Service Manual
© Copyright Polaris Industries Inc.

STARTER MOTOR REMOVAL

1. Disconnect the battery.
2. Raise and support rear of vehicle.
3. Remove the LH rear wheel.
4. Disassemble the PVT system as the starter motor
can be accessed when the inner PVT cover is
removed.
5. Remove (+) positive wire
terminal.
6. From the RH side wheel well using an 8 mm flex
socket, remove the negative battery cable nut and
w
the fasteners securing the starter motor to the
engine.
NOTICE
The (-) negative battery cable is mounted to the engine
using the upper starter mounting bolt / stud.
7. Remove the starter from the engine.
ELECTRICAL
q
from starter motor
11
11.49