Fuel Pressure Regulator - Polaris Sportsman 700 Efi 2005 Service Manual

6. Relieve the fuel pressure at the fuel test valve.
Test Valve
7. Loosen the fuel tank hose and pull the fuel line
from the tank. NOTE: A small amount of fuel may
come out of the fuel line or tank. Plug the fuel line
and tank inlet or use a shop towel during removal.
CAUTION:
Check the fuel test valve for any possible fuel
seepage after performing
procedures. Fuel is extremely flammable and
may cause severe burns, injury, or death. Do not
use any device that produces a flame or electrical
devices that may spark around fuel or fuel vapors.
700 EFI Shown
FUEL SYSTEM / FUEL INJECTION
8. Remove the air box cover and remove the two gas
9. Carefully pull the fuel tank out of the frame. Keep
Fuel Pump/Tank Installation
any tests or
1. Reinstall the pump/tank assembly.
2. Reconnect the sender wiring harness and route
3. Reinstall the two fuel tank mounting bolts at back
4. Reinstall the PVT intake duct, gas tank vent line,
NOTE: Properly route the gas tank vent line, use tape
to secure the vent line in place. (See Pic 1).
5. Reconnect the negative battery cable. Test the
FUEL PRESSURE
REGULATOR
The fuel pressure regulator maintains the required
operating system pressure of 39 psi ±
rubber--fiber diaphragm divides the regulator into two
separate sections--, the fuel chamber and the pressure
regulating chamber. The pressure regulating spring
presses against the valve holder (part of the
diaphragm), pressing the valve against the valve seat.
The combination of atmospheric pressure and
regulating spring tension equals the desired operating
pressure. Any time the fuel pressure against the bottom
of the diaphragm exceeds the desired (top) pressure,
the valve opens, relieving the excess pressure,
returning the excess fuel back to the tank
tank mounting bolts at the rear of the gas tank.
Front of ATV
the fuel tank horizontal during removal, this will
keep the fuel in the tank from spilling out the top
inlet.
the harness properly. Install the fuel line and
tighten the fuel line clamp.
of tank.
front cab assembly, and side panels.
sender for proper operation.
Remove
2 Bolts
3psi. A
.
4.11