Compression Test Specification; Engine Mounts; Valve Clearance Inspection - Polaris 2014 Sportsman 570 EF Service Manual

MAINTENANCE

Compression Test Specification

NOTE: This engine does have decompression
components.
A smooth idle generally indicates good compression.
Low engine compression is rarely a factor in running
condition problems above idle speed.
Cylinder Compression:
80 - 120 psi (decompression)

Engine Mounts

Inspect rubber engine mounts for cracks or damage.
Check engine fasteners and ensure they are tight.
2.18

Valve Clearance Inspection

NOTE:
performed on a cold engine, at room temperature.
1. Remove the seats and disconnect the negative (-)
2. Remove the air box cover and PVT ducting tubes.
3. Remove the spark plug wire from the engine and
4. Remove the (3) T40 bolts retaining the valve cover.
5. Remove the valve cover from the engine.
6. Remove the outer PVT cover and drive belt as shown
9924871 R03 - 2014 Polaris Sportsman® 570 EFI Service Manual
© Copyright 2013 Polaris Sales Inc.
Valve clearance inspection should be
battery cable.
(Non-Touring models require fuel tank removal.
remove the spark plug. Place a clean shop towel into
the spark plug tube to prevent debris from entering
the combustion chamber.
NOTE: Discard valve cover Isolators upon
removal. New Isolators are required once
removed.
Inspect the valve cover gasket and replace if
damaged or signs of leaking are present.
in chapter 6.