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9929422 R02 - 2017-2019 ACE 900 Service Manual

2.49

SPARK PLUG SERVICE

Inspect and replace the spark plugs at the intervals

outlined in the Periodic Maintenance Chart.

1. Remove the cargo box access

CAUTION

A hot engine can cause serious burns. Allow engine to

cool or wear protective gloves when removing the spark

plugs.

2. Disengage the two air box cover straps

and

remove the air box cover.

3. Remove the spark plug caps

NOTE

Note MAG and PTO reference decals on spark plug

wires for reassembly.

4. Clean the plug area so no dirt and debris can fall into

engine when plug is removed.

5. Using the spark plug wrench provided in the tool kit,

remove a plug by rotating it counter clockwise.

6. Inspect electrodes for wear and carbon build up. Look

for a sharp outer edge with no rounding or erosion of

the electrodes.

7. Clean with electrical contact cleaner or glass bead

spark plug cleaner on.

CAUTION

A wire brush or coated abrasive should not be used.

MAINTENANCE

Polaris ACE 900 2017 User Manual

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