Polaris Sportsman XP 1000 S 2021 - Cylinder Head Installation; Valve Sealing Test

3
9931493 R03 - 2020-2021 Sportsman XP 1000 S Service Manual
© Copyright Polaris Inc.
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VALVE SEALING TEST
1. Clean and dry the combustion chamber area
q
.
2. Pour a small amount of clean solvent into each
intake port
w
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
e
.
CYLINDER HEAD INSTALLATION
1. Prepare cylinder head gasket sealing surfaces by
cleaning thoroughly to remove all residue. The head
gasket must be installed clean and dry, free from oil
or grease.
IMPORTANT
Do not touch sealing surfaces of gasket.
2. Reinstall two head alignment pins in upper
crankcase.
3. Install cam chain tensioner blade in upper crankcase.
Install a new O-ring on pivot bolt and lubricate with
engine oil. Torque bolt
q
to specification.
4. Lift cam chain and install chain guide.
ENGINE / COOLING SYSTEM