3
3.39
9924874 R02 - 2014 RZR XP / XP 4 1000 Service Manual
© Copyright 2013 Polaris Industries Inc.
5. Measure diameter of valve stem with a micrometer in
three places, then rotate 90° and measure again
(take six measurements total). Compare to
specifications.
Valve Stem Diameter:
Intake:0.2155 - 0.2161" (5.475 - 5.490 mm)
Exhaust: 0.2147 - 0.2153" (5.455 - 5.470 mm)
6. Measure valve guide inside diameter at the top,
middle and end of the guide using a small hole
gauge and a micrometer. Measure in two directions.
Valve Guide I.D.:
0.2165 - 0.2171" (5.500 - 5.515 mm)
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 carbon deposits from
combustion chambers and valve seat area (Item 1).
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.
Valve Sealing Test
1. Clean and dry the combustion chamber area (Item
1).
ENGINE
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