2
2.21
9924864 - 2012-2014 SPORTSMAN 800 / 6X6
© Copyright 2013 Polaris Sales Inc.
Compression Test
IMPORTANT: This engine does NOT have
decompression components. Compression readings
will vary in proportion to cranking speed during the
test. Average compression (measured) is about 150-
200 psi during a compression test.
A smooth idle generally indicates good compression.
Low engine compression is rarely a factor in running
condition problems above idle speed. Abnormally high
compression can be caused by carbon deposits in the
combustion chamber or worn, damaged exhaust cam
lobes. Inspect camshaft and combustion chamber if
compression is abnormally high.
A cylinder leakdown test is the best indication of engine
condition. Follow manufacturer's instructions to perform
a cylinder leakage test. (Never use high pressure
leakage testers, as crankshaft seals may dislodge and
leak).
Cylinder Compression
Standard: 150-200 PSI
Cylinder Leakdown
Service Limit 15%
(Inspect for cause if test exceeds 15%)
Engine Mounts
Inspect rubber engine mounts (A) for cracks or damage.
Check engine fasteners and mounts, ensure they are
tight.
MAINTENANCE
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