Engine Breather Hose Inspection; Engine And Transmission Mounts; Compression Test Specification; Valve Clearance Inspection - Polaris 2012 RANGER RZR 570 INTL Service Manual

MAINTENANCE

Engine Breather Hose Inspection

The engine is equipped with a breather hose. Inspect the
breather hose fo r po ssible kinks or we ar. The hose is
form fitted for a proper fit. Follow the breather hose from
the engine crankcase to the a ir intake baffle box on the
left-hand rear fender panel.
Breather
Hose
NOTE: Make sure line is not kinked or pinched.

Engine and Transmission Mounts

Periodically inspect engine and transmission mounts for
cracks or damage.
Refer to Chapter 3 "Engine Assembly and Installation" for
mounting fastener torque values.

Compression Test Specification

NOTE: This en gine does ha ve 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)
2.18

Valve Clearance Inspection

IMPORTANT: Valve cl earance i nspection should be
performed on a cold engine, at room temperature.
1. Remove the seats and disconn ect th e ne gative ( -)
battery cable. 
2. Remove the cargo box access panel.
3. Remove the spar k plug wire from the en gine an d
remove the spark plug. Place a clean shop towel into
the spark plug tube to prevent debris from entering the
combustion chamber.
4. Remove the (3) T40 bolts retaining the valve cover.
5. Remove the valve cover from the engine out of the
right-hand rear wheel well area.
6. Remove the outer PVT cover and drive belt as shown
in chapter 6.
9923523 - RANGER RZR 570 Service Manual
© Copyright 2011 Polaris Sales Inc.