Polaris 850 PRO-RMK 155 2.6" QD 2021, Manual

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9850060 R02 - 2020-2021 850 AXYS™ Long Track Snowmobile Service Manual
© Copyright Polaris Inc.
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850 ENGINE
GENERAL INFORMATION
ENGINE MODEL NUMBER MATRIX - 2020
MODEL YEAR VEHICLE ENGINE MODEL NUMBER
2020
850 PRO-RMK 155 / 163
S6031-8444-LP8R
850 RMK Khaos 155
850 PRO-RMK 155 / 163 / 174 3”
850 RMK Khaos 155 3”
850 SKS 155
ENGINE MODEL NUMBER MATRIX - 2021
MODEL YEAR VEHICLE ENGINE MODEL NUMBER
2021
850 PRO-RMK / RMK Khaos (155/163/165)
S6185-8444-LO8R
850 PRO-RMK / RMK Khaos (155/163/174) 3.0
Track
850 SKS 155
ENGINE SPECIFICATIONS
ENGINE MODEL
NUMBER
RANGE
HEAD SQUISH
MM (INCHES)
PISTON-TO-
CYLINDER
CLEARANCE
MM (INCHES)
PISTON RING
END GAP
MM (INCHES)
TRIGGER-TO-
FLYWHEEL
GAP
MM (INCHES)
ALL ENGINES
MINIMUM
1.290 (0.051”) 0.145 (0.0057”) 0.40 (0.016”) 0.36 (0.014”)
NOMINAL
0.9 (0.035”)
MAXIMUM
1.630 (0.064”) 0.155 (0.0061”) 0.50 (0.020”) 1.34 (0.052”)
ENGINE / COOLING / EXHAUST