Fuel Injector Test; Fuel Injector Replacement - Polaris 2014 Sportsman 570 EF Service Manual

FUEL SYSTEM - GENERAL

Fuel Injector Test

The fuel injector is non-serviceable. If diagnosis indicates
a problem with the injector, remove the fuel injector
connector (1) and test the resistance of the fuel injector
by measuring between the two pin terminals:
Fuel Injector Resistance Specification:
11.4 - 12.6 Ω

Fuel Injector Replacement

1. Remove the seat, air box, PVT ducting, right and left
side panels.
2. Be sure the engine has cooled enough to work on.
3. Disconnect the negative battery cable.
4. Thoroughly clean the fuel injector area if all dirt and
debris.
5. Disconnect the fuel injector harness lead.
6. Hold a shop towel over the fuel line fittings and
remove the fuel supply line from the fuel rail.
4.26
7. Remove the (2) screws that mount the fuel rail to the
8. Carefully pull up on the fuel rail and injector to
9. Gently pull and twist to free the injector from the fuel
10. Upon installation of the new fuel injector, lightly
9924871 R03 - 2014 Polaris Sportsman® 570 EFI Service Manual
© Copyright 2013 Polaris Sales Inc.
cylinder head.
remove them from the engine as an assembly. If the
injector stays in the cylinder head, grab the injector
with your fingers and gently pull and twist the injector
unit it can be removed from the cylinder head. Take
care not to damage the fuel injector ends during
removal.
rail.
lubricate the injector O-rings to aid installation.