Page 116 - Manual_Polaris_RZR_ProXP-20-21

MAINTENANCE

14.Unlock the dipstick lever q. Remove the dipstick and ENGINE CRANKCASE BREATHER HOSE
wipe it dry with a clean rag. The engine crankcase is equipped with a breather hose
that vents to the engine air intake. Inspect the breather
hose for possible kinks or wear. The hose is form fitted
for proper fit.

15.Reinstall the dipstick to fully seat it. Do not lock the
dipstick.

IMPORTANT
IMPORTANT
Make certain the dipstick is inserted all the way down to
ensure an accurate reading. Make sure the vent hose is not kinked, restricted or cut.

16.Remove the dipstick and check the oil level.
ENGINE CYLINDER LEAKDOWN TEST
17.Add the recommended oil as necessary to bring the
oil level within the SAFE range (between the holes) A cylinder leak-down test is the best indication of engine
on the dipstick. Do NOToverfill. 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.

NOTICE
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.

NOTICE
A rising oil level between checks during cold weather
operation can indicate contaminants such as gas or
moisture collecting in the crankcase. If the oil level is
over the upper mark, change the oil immediately.

18.When finished, reinstall dipstick and lock the lever.
19.Reinstall the cargo box, engine service panel and
seats.
20.Dispose of used oil, filter and rags properly.

2.30 9930583 R01 - 2020-2021 RZR PRO XP / XP 4 Service Manual
© Copyright Polaris Industries Inc.