5
9850064 R03 - 2021 650 / 850 Matryx Trail Performance / Crossover Snowmobile Service Manual
© Copyright Polaris Inc.
5.33
FUEL PUMP SERVICE
FUEL PUMP SPECIFICATIONS
FUEL PUMP WIRE HARNESS CONNECTOR
PINS
PIN COLOR FUNCTION
1 Red
Fuel Pump +
2 Black
Fuel Pump
Ground (-)
3 Green Level Sender
4 Blue Level Sender
FUEL PRESSURE SPECIFICATION
Fuel Pressure:
650 Models:42 to 49 psi (292 to 336 kPa)
@ 12-14 VDC Fuel Pump Power
850 Models:57 to 62.5 psi (393 to 431 kPa)
@ 12-14 VDC Fuel Pump Power
Preferred method for testing fuel pump pressure is with
engine running.
When using standby 12V battery, verify battery is fully
charged and can supply required voltage to fuel pump.
FUEL LEVEL SENSOR RESISTANCE
VALUES
FLOAT POSITION /
GAUGE READING
RESISTANCE (Ω) @ 68°
F (20° C)
Full 2.0 ± 1.0
1/2 39.9
Empty
102.25 ± 2.0
PICKUP FILTER MEDIA
• Primary Screen = 200 Microns
• Filter = 10 Microns
FUEL PUMP REMOVAL
WARNING
Gasoline is extremely flammable and explosive under
certain conditions. Do not smoke or allow open flames
or sparks in or near the fuel tank / fuel system.
1. Follow the procedure for fuel tank removal.
2. Use the PFA Nut Socket to remove the pump flange
nut
q
.
PFA Nut Socket:
PS-48459
3. Carefully extract the fuel pump out of the fuel tank.
Manipulate the pickup assembly
w
to fit through the
tank opening. Do not kink the fuel pickup hose during
this process.
FUEL SYSTEM
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