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Combustion Chamber Cleaning; Valve Sealing Test - Polaris RZR XP 1000 Service Manual

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ENGINE / COOLING SYSTEM
7. Be sure to measure each guide and valve
combination individually.
NOTE: The valve guides cannot be replaced.

Combustion Chamber Cleaning

WARNING
Wear eye protection during combustion chamber
cleaning.
1. Clean
all accumulated
combustion chambers and valve seat area
NOTE: Carbon Clean Fuel Treatment (2871326)
can be used to help remove carbon deposits.
Do not use a metal scraper, a coarse wire brush
or abrasive cleaners to clean the cylinder head.
Damage may result.
2. Visually inspect cylinder head gasket surface and
combustion chamber for cracks or damage. Pay
close attention to areas around spark plug and valve
seats.
3.40
carbon
deposits from
.
1
9925724 R01 - 2014-2015 RZR XP 1000 / RZR XP4 1000 Service Manual
© Copyright 2014 Polaris Industries Inc.

Valve Sealing Test

1. Clean and dry the combustion chamber area
2. Pour a small amount of clean solvent into each
intake port
and check for leakage around the
valves. The valve seats should hold fluid with no
seepage.
3. Repeat for exhaust valves by pouring fluid into each
exhaust port
.
.
1

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Rzr xp4 1000