4.48
CARBURETOR - SPORTSMAN 450
POOR IDLE
Idle Too High
• Idle adjusted improperly/idle mixture screw
damaged
• Sticky vacuum slide
• Throttle cable sticking, improperly adjusted, routed
incorrectly
• Choke cable sticking, improperly adjusted, routed
incorrectly
• Plugged or restricted idle jet
Idle Too Low
• Choke cable bending or incorrectly adjusted
• Idle speed set incorrectly
• Idle mixture screw misadjusted or damaged
• Belt dragging
• Ignition timing incorrect
• Worn jet needle/needle jet
• Plugged or restricted idle jet
Erratic Idle
• Choke cable bending or incorrectly adjusted
• Throttle cable incorrectly adjusted
• Air leaks, dirty carburetor passages (pilot circuit)
• Pilot mixture screw damaged or adjusted
incorrectly
• Tight valves
• Ignition timing incorrect
• Belt dragging
• Dirty air cleaner
• Engine worn
• Spark plug fouled
• Idle speed set incorrectly (speed limiter)
• Worn jet needle/needle jet
• Plugged or restricted idle jet
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...