4.15
FUEL INJECTION
4
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.
8.
Remove the air box cover and remove the two gas tank
mounting bolts at the rear of the gas tank.
9.
Carefully pull the fuel tank out of the frame. Keep the fuel
tank horizontal during removal, this will keep the fuel in the
tank from spilling out the top inlet.
Fuel Tank Installation
1.
Reinstall the tank assembly.
2.
Reconnect the sender wiring harness and route the harness
properly. Install the fuel line(s) and verify they are secure.
3.
Reinstall the two fuel tank mounting bolts at back of tank.
4.
Reinstall the PVT intake duct, gas tank vent line, front cab
assembly, and side panels.
NOTE: Properly route the gas tank vent lines, use
tape to secure the vent line in place. (See Pic 1).
5.
Reconnect the negative battery cable. Test the sender for
proper operation.
FUEL PRESSURE REGULATOR
General Information
The fuel pressure regulator maintains the required operating
system pressure of 39 psi + 3psi. A 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.
Fuel Pressure Regulator Test
Refer to the “FUEL PUMP TEST” procedure.
Fuel Pressure Regulator Replacement
The regulator is a sealed, non-serviceable assembly. If it is
faulty, the pump assembly must be replaced. Refer to the Fuel
Pump/Tank Assembly Replacement procedure.
CAUTION
Check the fuel test valve for any possible fuel
seepage after performing any tests or 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.
Fuel Line
Fuel Pump
Summary of Contents for 2007 Sportsman 450 EFI
Page 4: ...NOTES...
Page 20: ...NOTES GENERAL INFORMATION 1 16...
Page 27: ...2 7 MAINTENANCE 2 LUBRICATION FLUIDS SPORTSMAN Component Locations Sportsman Only Deluxe...
Page 58: ...2 38 MAINTENANCE Maintenance Schedule Service Date Hours Miles Service Performed Serviced By...
Page 78: ...3 20 ENGINE Cylinder Head Exploded View EH50PL EH50PL A...
Page 114: ...4 2 FUEL SYSTEM...
Page 139: ...4 27 FUEL INJECTION 4 EFI CIRCUIT Fuel Pump EFI CIRCUIT Ignition Coil...
Page 140: ...4 28 FUEL INJECTION EFI CIRCUIT Idle Air Control EFI CIRCUIT Throttle Position Sensor...
Page 142: ...4 30 FUEL INJECTION EFI CIRCUIT Air Temperature Sensor EFI CIRCUIT Malfunction Indicator Light...
Page 156: ...4 44 CARBURETOR SPORTSMAN 450 FUEL TANK FUEL DELIVERY SYSTEM Fuel System Exploded View...
Page 185: ...5 25 BODY STEERING SUSPENSION 5 X2 CARGO BOX Exploded View...
Page 188: ...5 28 BODY STEERING SUSPENSION X2 SEAT ASSEMBLY Exploded Views...
Page 268: ...NOTES FINAL DRIVE 7 40...
Page 270: ...8 2 GENERAL INFORMATION TRANSMISSION GENERAL Mounting Exploded View x2 x3 x4 x4 x2 x1 x1 x1...
Page 276: ...8 8 GENERAL INFORMATION 242 262 262 262 262 262...
Page 318: ...NOTES BRAKES 9 30...
Page 337: ...10 19 ELECTRICAL 10 ALL WHEEL DRIVE AND SPEEDOMETER TROUBLESHOOTING TEST 1 No All Wheel Drive...
Page 338: ...10 20 ELECTRICAL TEST 2 No Speedometer Display TEST 3 No Reverse Speed Limit...
Page 339: ...10 21 ELECTRICAL 10 TEST 4 No AWD Hub Safety Limit...
Page 341: ...10 23 ELECTRICAL 10 TEST 7 Fuel Gauge Display Not Working TEST 8 Shift Indicator Not Working...
Page 347: ...10 29 ELECTRICAL 10 Components of EFI Alternator and DC CDI Ignition System...
Page 348: ...10 30 ELECTRICAL EFI Ignition System Testing Flow Chart...
Page 353: ...10 35 ELECTRICAL 10 PDM...
Page 363: ...10 45 ELECTRICAL 10 Starter Lockout Diagram EFI Starter Lockout Diagram Sportsman 450...
Page 369: ...10 51 ELECTRICAL 10 BASIC WINCH WIRING Pre wired Models...
Page 370: ...10 52 ELECTRICAL TROUBLESHOOTING DIAGRAMS Power On EFI Start Circuit EFI To ECU Pin 12...
Page 371: ...10 53 ELECTRICAL 10 Ignition Coil EFI Fuel Pump EFI...
Page 372: ...10 54 ELECTRICAL Fan EFI Charging System EFI...
Page 373: ...10 55 ELECTRICAL 10 All Wheel Drive EFI Transmission Switch EFI...
Page 374: ...10 56 ELECTRICAL Reverse Override EFI Differential Solenoid X2...
Page 383: ...11 3 500 EFI INTERNATIONAL QUADRICYCLE 11 Exploded View Foot Brake Supply Hand Brake Supply...
Page 392: ...IX 6...
Page 393: ...WD 1 WIRE DIAGRAM 2007 SPORTSMAN ACTIVE DESCENT CONTROL ADC WIRE DIAGRAM...
Page 394: ...WD 2 WIRE DIAGRAM INTENTIONAL BLANK PAGE...
Page 395: ...WD 3 WIRE DIAGRAM 2007 SPORTSMAN 450 WIRE DIAGRAM...
Page 396: ...WD 4 WIRE DIAGRAM...
Page 397: ...WD 5 WIRE DIAGRAM 2007 SPORTSMAN 500 EFI STANDARD WIRE DIAGRAM...
Page 398: ...WD 6 WIRE DIAGRAM...
Page 399: ...WD 7 WIRE DIAGRAM 2007 SPORTSMAN 500 EFI DELUXE WIRE DIAGRAM...
Page 400: ...WD 8 WIRE DIAGRAM...
Page 401: ...WD 9 WIRE DIAGRAM 2007 SPORTSMAN 500 EFI INTERNATIONAL WIRE DIAGRAM...
Page 402: ...WD 10 WIRE DIAGRAM...
Page 403: ...WD 11 WIRE DIAGRAM 2007 SPORTSMAN 500 EFI X2 WIRE DIAGRAM...
Page 404: ...WD 12 WIRE DIAGRAM...
Page 405: ...WD 13 WIRE DIAGRAM 2007 SPORTSMAN 500 EFI X2 QUADRICYCLE WIRE DIAGRAM...
Page 406: ...WD 14 WIRE DIAGRAM...