Chassis / Engine Electrical Ground; Spark Plug Service - Polaris RANGER XP 900 2018-2019 Service Manual

MAINTENANCE
5. Install and tighten the black (negative) cable
CAUTION
To reduce the chance of sparks, disconnect the black
(negative) cable first. When reinstalling the battery,
connect the black (negative) cable last.
6. Verify the cables are properly routed and reinstall the
storage container and passenger seat.

CHASSIS / ENGINE ELECTRICAL GROUND

Inspect the ground cable connections. Remove ground
terminals and clean if necessary.
1. Remove the passenger seat base and storage bin to
access the chassis ground terminal
below the starter solenoid
2. Inspect the chassis ground terminals. Be sure they
are clean and tight.
3. Inspect the engine ground terminal, attached to the
upper starter mounting bolt. The other end of the
engine ground cable is attached to the chassis
ground terminal).
4. Inspect the engine ground terminals. Be sure they
are clean and tight.
2.40
w
last.
q
, located
w
next to the battery.

SPARK PLUG SERVICE

Inspect and replace the spark plugs at the intervals
outlined in the Periodic Maintenance Chart.
1. Tilt the rear cargo box to access the top of the engine.
A hot engine can cause serious burns. Allow engine to
cool or wear protective gloves when removing the spark
2. Remove the spark plug caps
MAG and PTO reference decals on spark plug wires for
3. Clean out plug wells with compressed air to remove
any loose dirt or debris.
4. Rinse plug wells with water and dry with compressed
air.
Spark plug wells have drain holes built into the cylinder
head to allow water to drain out.
5. Remove spark plugs using a 5/8" spark plug socket
with an extension.
6. Inspect electrodes for wear and carbon buildup. Look
for a sharp outer edge with no rounding or erosion of
the electrodes.
7. Clean with electrical contact cleaner or a glass bead
spark plug cleaner only.
A wire brush or coated abrasive should not be used.
8. Measure gap with a wire gauge. Adjust gap if
necessary by carefully bending the side electrode.
9929399 R01 - 2018-2019 RANGER XP/ CREW 900/1000 Service Manual
CAUTION
plugs.
q
.
NOTICE
reassembly.
NOTICE
CAUTION
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