Spark Plug Service; Engine To Frame Ground - Polaris MS4000 Service And Owner's Manual

MAINTENANCE

Spark Plug Service

1. Remove both spark plug high tension leads (A). Clean
plug area so no dirt and debris can fall into engine when
plug is removed.
B
2. Remove spark plugs (B).
3. Inspect electrodes for wear and carbon buildup. Look for
a sharp outer edge with no rounding or erosion of the
electrodes.
4. Clean with electrical contact cleaner or a glass bead spark
plug cleaner only. CAUTION: A wire brush or coated
abrasive should not be used.
5. Measure gap with a wire gauge. Refer to specifications in
picture below for proper spark plug type and gap. Adjust
gap if necessary by bending the side electrode carefully.
Spark Plug Gap
Gap - .035" (0.90 mm)
6. If necessary, replace spark plug with proper type.
CAUTION: Severe engine damage may occur if the
incorrect spark plug is used.
7. Apply a small amount of anti-seize compound to the spark
plug threads.
2.28
A
Inspect electrode for
wear and buildup
8. Install spark plug and torque to specification.
Recommended Spark Plug:
Champion RC7YC3
Spark Plug Torque:
18 ft. lbs. (24 Nm)

Engine To Frame Ground

Inspect engine ground cable connection. Be sure it is clean and
tight. The ground cable runs from the engine to the terminal
block located under the front hood next to the battery.
Black Ground
= T
Terminal Block
(under hood)