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9850043 R01 - 2017-2021 RANGER 500 / 570 Service Manual
© Copyright Polaris Inc.
2.15
5. Use drive clutch to rotate the crankshaft until the cam
chain sprocket timing marks are aligned with the
gasket surface as shown.
IMPORTANT
Intake cam sprocket should have “I” marks aligned with
the gasket surface and the exhaust cam sprocket
should have “E” marks aligned with the gasket surface.
6. Measure the valve clearance of each valve using a
feeler gauge. Record the measurement if clearance
is out of specification.
MEASUREMENT
Intake Valve Clearance:
0.006 ± 0.002" (0.15 ± 0.05 mm)
Exhaust Valve Clearance:
0.008 ± 0.002" (0.20 ± 0.05 mm)
MAINTENANCE
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