Cleanfire System Overview; Fuel Pump (700); Fuel Level Indicator - Polaris 2007 Two Stroke Service Manual

Cleanfire System Overview

700 CFI
The Cleanfire fuel system uses a fuel pump (A) that is located
inside the fuel tank, a fuel rail (C) with in-line fuel filter (B), and
injectors (D). The fuel pump will create a pressure in the system
and deliver the fuel mixture to the injectors. The injectors get a
signal from the engine controller unit (ECU) and sprays into the
engine.
The only maintenance that is needed with this system is that the
fuel filter (B) needs to be changed every 1,000 miles (1600km).
Fittings should be inspected for cracks or leaks. Do not use pliers
or other tools that may damage fuel lines when installing or
removing fuel rail.
Fuel travels from the fuel pump through the fuel filter and to the
injectors. Any fuel that is not delivered through the injectors will
travel back to the fuel tank through the return line.
B
A
D
C

Fuel Pump (700)

This fuel pump on this system is non-serviceable and can not be
replaced. If fuel pump fails, the whole fuel tank assembly must
be replaced.
FUEL PUMP: Located inside tank. It provides system with fuel
at 58psi (4bar) pressure. If the fuel pressure is suspect to be
defective apply 12 VDC to the fuel pump prime (Red (#1) and
the Brown (#3) wires) and check for audible fuel pump
operation as well as fuel rail pressure. The fuel pump should
sound when pumping and the pressure should show 58psi (4 bar)
pressure.
PIN COLOR
#1
#2 Violet/White
#3 Brown
#4 Brown

Fuel Level Indicator

If the fuel gauge is suspect to failure you can check the
continuity from the fuel sender to the gauge. The given
resistance below is from the Violet/White (#2) wire to the
Brown (#4) wire located at the front of the fuel pump.
TANK LEVEL
FULL
EMPTY
FUEL DELIVERY
ITEM
Red power to the pump
fuel level signal
ground
fuel level ground
RESISTANCE (Ω)
2 - 4 Ω
85 - 95 Ω
4.19
4