5
9850060 R02 - 2020-2021 850 AXYS™ Long Track Snowmobile Service Manual
© Copyright Polaris Inc.
5.1
FUEL SYSTEM
CHAPTER 5
FUEL SYSTEM
GENERAL INFORMATION. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . .. .. . . .. . . .. . . .. . . .. . ... . ... . . .. . . .. . . .. . 5.2
SERVICE WARNINGS. . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . .. .. . . .. . . .. . . .. . . .. . ... . ... . .. .. . . .. . ... . ... . .. 5.2
FUEL PUMP PRIME PROCEDURE . . ... . . .. . ... . ... . .. . . ... . ... . ... . ... . ... . ... . .. . . ... . ... . ... . ... . .. 5.3
FUEL TYPE SELECTION – STANDARD GAUGE .. . . ... . ... . .. . . .. . . .. . . .. . . .. . . ... . .. . . .. . . .. . . .. . . .. . 5.4
FUEL TYPE SELECTION – INTERACTIVE DIGITAL DISPLAY (IDD) GAUGE .. . . .. . . .. . . .. . . .. . . .. . . .. . 5.4
FUEL INJECTORS / FUEL RAIL / THROTTLE BODY . . ... . ... . ... . ... . .. .. . ... . ... . .. . . ... . ... . ... . ... 5.6
FUEL RAIL / THROTTLE BODY ASSEMBLY VIEW . ... . ... . ... . ... . .. . . .. . . .. . . ... . ... . ... . .. . . .. . . .. . . 5.6
FUEL HOSE QUICK DISCONNECT FITTINGS . .. . . ... . ... . ... . ... . .. . . .. . . .. . . ... . ... . ... . .. . . .. . . .. . . 5.7
THROTTLE BODY REMOVAL . .. . . .. . ... . . .. . . .. . . .. . . .. . . .. . ... . ... . .. .. . . .. . . .. . ... . ... . ... . .. .. . ... 5.7
THROTTLE BODY INSTALLATION . . . .. . . ... . ... . .. . . .. . . .. . . .. . . .. . . ... . .. . . .. . . .. . . .. . . .. . . .. . . .. . . 5.11
FUEL INJECTORS . . .. . ... . ... . ... . ... . . .. . . .. . . .. . ... . ... . ... . ... . ... . . .. . ... . ... . .. . . ... . ... . ... . ..5.15
FUEL RAIL / FUEL INJECTOR SERVICE . ... . .. .. . . .. . ... . ... . ... . ... . ... . . .. . . .. . ... . ... . .. . . ... . ...5.15
FUEL INJECTOR SERVICE . . ... . ... . ... . ... . ... . .. . . ... . ... . ... . ... . ... . .. . . .. . . ... . ... . ... . ... . .. . .5.19
FUEL TANK / FUEL PUMP SERVICE . . .. . . .. . .. .. . . .. . . .. . . .. . ... . ... . ... . . .. . . .. . . .. . ... . ... . ... . ... .5.20
FUEL TANK ASSEMBLY VIEW – RMK . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . ... . . .. . . .. . . .. .5.20
FUEL TANK REMOVAL – RMK. . ... . ... . ... . ... . . .. . ... . ... . .. . . ... . ... . ... . ... . ... . .. . . .. . . ... . ... . ..5.21
FUEL TANK INSTALLATION – RMK ... . ... . . .. . . .. . . .. . ... . ... . ... . ... . .. .. . ... . ... . .. . . ... . ... . ... . ..5.23
FUEL PUMP SPECIFICATIONS . . . ... . ... . .. . . .. . . .. . . .. . . .. . . ... . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. .5.25
FUEL PUMP REMOVAL / SERVICE. .. . . .. . . .. . . .. . . .. . .. .. . . .. . . .. . . .. . . .. . ... . ... . . .. . . .. . . .. . . .. . ..5.26
FUEL PUMP INSTALLATION .. . ... . .. . . .. . . ... . ... . ... . ... . .. . . .. . . .. . . ... . ... . ... . .. . . .. . . .. . . .. . . ..5.27
FUEL PUMP HARNESS ROUTING . . .. . . ... . ... . ... . .. . . .. . . .. . . .. . . .. . . ... . ... . .. . . .. . . .. . . .. . . .. . . .5.30
FUEL LINE . . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . .. .. . . .. . . .. . . .. . ... . ... . ... . . .. .5.31
FUEL LINE ROUTING . . ... . ... . ... . ... . ... . . .. . . .. . ... . ... . ... . ... . ... . . .. . ... . ... . .. . . .. . . ... . ... . ..5.31
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