2
9926816 R07 - 2014-2016 RZR XP 1000 / XP4 1000 Service Manual
© Copyright Polaris Industries Inc.
2.13
ENGINE CYLINDER LEAKDOWN TEST
A cylinder leak-down test is the best indication of engine
condition. Follow tester manufacturer’s instructions to
perform a cylinder leak-down test. Never use high
pressure leakage testers as crankshaft seals may
dislodge and leak.
Cylinder Leakage Service Limit: 15%
If leakage exceeds service limit, inspect the engine for
the cause.
NOTE
A brand new or rebuilt engine will have higher leakdown
than an engine with 5 hours of runtime. Leakdown
should decrease once the rings are broken in.
VALVE CLEARANCE INSPECTION
NOTE
Valve clearance inspection should be performed on a
cold engine, at room temperature.
1. Remove the driver’s seat. Disconnect the negative
(-) battery cable.
2. Remove the engine access panel.
3. Remove eight screws retaining the outer clutch
cover.
4. Maneuver the outer clutch cover to allow access to
the drive clutch, in order to rotate the engine.
NOTE
Removal of left rear wheel or left rear shock is NOT
necessary to perform this procedure.
5. Remove the spark plug wires to gain access to valve
cover as shown below.
MAINTENANCE
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