2.40
9850043 R01 - 2017-2021 RANGER 500 / 570 Service Manual
© Copyright Polaris Inc.
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:
0.028 - 0.032″ (0.7 - 0.8 mm)
6. If necessary, replace spark plug with proper type.
CAUTION
Severe engine damage may occur if the incorrect spark
plug is used.
7. Install spark plug and torque to specification.
Recommended Spark Plug:
NGK MR7F
TORQUE
Spark Plug:
9 ft-lbs (12 Nm)w/o anti-seize
MAIN FRAME/ENGINE GROUND
Inspect engine ground cable connections
q
. Be sure
ground wires are tight and not corroded. The main
chassis ground can be found below the fuse box under
the driver’s seat base.
MAINTENANCE
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