Page 263 - Manual Oficina Polaris Sportsman 570 2014 a 2016

ENGINE / COOLING SYSTEM

SETTING TDC (TOP-DEAD-CENTER) 570 NOTE
There are three ways to ensure the piston is at TDC. Intake cam sprocket should have “I” marks aligned with
Remove the outer clutch cover to access the drive clutch gasket surface and the exhaust cam sprocket should
to aid in engine rotation (manually turn the drive clutch have “E” marks aligned with gasket surface.
counter clockwise).
1. With the CPS sensor removed, rotate the engine
until the “V” marked on the flywheel is aligned with
the CPS mounting hole. This will set TDC, but not
necessarily TDC of the compression stroke.
NOTE 3

View the timing marks on the camshaft sprockets to
ensure the engine is at TDC of the compression stroke.

3. With the stator cover and flywheel removed, rotate
the engine and position the piston at TDC by aligning
the timing hole in crank case with a timing hole in the
crankshaft.

4. Insert a 1/4” drive socket extension through the
crankcase and into the crankshaft locating hole q.
This will set TDC, but not necessarily TDC of the
compression stroke. View the timing marks on the
2. With the valve cover and thermostat housing cam shaft sprockets to ensure the engine is at TDC
removed, rotate the engine so the cam lobes are of the compression stroke.
facing outward and the Cylinder Holding and
Camshaft Timing Plate can be installed into the slots
of the camshafts as shown below. This will set TDC
of the compression stroke.

Cylinder Holding and Camshaft Timing Plate: PU-
50563

9926803 R06 - 2014-2016 Sportsman 325 / ETX / 450 HO / 570 Service Manual 3.141
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