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9924871 R03 - 2014 Polaris Sportsman® 570 EFI Service Manual
© Copyright 2013 Polaris Sales Inc.
Valve Sealing Test
1.
Clean and dry the combustion chamber area (A).
2.
Pour a small amount of clean solvent into each
intake port (B) 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 (C).
ENGINE
