3.54
ENGINE
Engine Has Low Power
• Spark plug fouled
• Cylinder, piston, ring, or valve wear or damage
(check compression)
• PVT not operating properly
• Restricted exhaust muffler
• Carburetor vacuum slide sticking/diaphragm
damaged
• Dirty carburetor
Piston Failure - Scoring
• Lack of lubrication
• Dirt entering engine through cracks in air filter or
ducts
• Engine oil dirty or contaminated
Excessive Smoke and Carbon Buildup
• Excessive piston-to-cylinder clearance
• Wet sumping
• Worn rings, piston, or cylinder
• Worn valve guides or seals
• Restricted breather
• Air filter dirty or contaminated
Low Compression
• Decompressor stuck
• Cylinder head gasket leak
• No valve clearance or incorrectly adjusted
• Cylinder or piston worn
• Piston rings worn, leaking, broken, or sticking
• Bent valve or stuck valve
• Valve spring broken or weak
• Valve not seating properly (bent or carbon
accumulated on sealing surface)
• Rocker arm sticking
Backfiring
• ETC or speed limiter system malfunction
• Fouled spark plug or incorrect plug or plug gap
• Carburetion faulty - lean condition
• Exhaust system air leaks
• Ignition system faulty:
Spark plug cap cracked/broken
Ignition coil faulty
Ignition or kill switch circuit faulty
Ignition timing incorrect
Sheared flywheel key
• Poor connections in ignition system
• System wiring wet
• Valve sticking
• Air leaks in intake
• Lean condition
Cooling System
Overheating
• Low coolant level
• Air in cooling system
• Wrong type of coolant
• Faulty pressure cap or system leaks
• Restricted system (mud or debris in radiator fins or
restriction to air flow, passages blocked in radiator,
lines, pump, or water jacket)
• Lean mixture (restricted jets, vents, fuel pump or
fuel valve)
• Fuel pump output weak
• Restricted radiator (internally or cooling fins)
• Water pump failure
• Cooling system restriction
• Cooling fan inoperative or turning too slowly
(perform current draw test)
• Ignition timing misadjusted
• Low oil level
• Spark plug incorrect heat range
• Faulty hot light circuit
• Thermostat stuck closed or not opening
completely
Temperature Too Low
• Thermostat stuck open
Leak at Water Pump Weep Hole
• Faulty water pump mechanical seal (coolant leak)
• Faulty pump shaft oil seal (oil leak)
Содержание 2007 Sportsman 450 EFI
Страница 4: ...NOTES...
Страница 20: ...NOTES GENERAL INFORMATION 1 16...
Страница 27: ...2 7 MAINTENANCE 2 LUBRICATION FLUIDS SPORTSMAN Component Locations Sportsman Only Deluxe...
Страница 58: ...2 38 MAINTENANCE Maintenance Schedule Service Date Hours Miles Service Performed Serviced By...
Страница 71: ...3 13 ENGINE 3 EH50PL Engine Exploded Views Crankshaft Cylinder and Piston Cylinder Head Crankcase Valvetrain...
Страница 78: ...3 20 ENGINE Cylinder Head Exploded View EH50PL EH50PL A...
Страница 113: ...FUEL SYSTEM 4 1 CHAPTER 4 FUEL SYSTEM 4 ELECTRONIC FUEL INJECTION 4 3 4 30 CARBURETOR SPORTSMAN 450 4 31 4 47...
Страница 114: ...4 2 FUEL SYSTEM...
Страница 138: ...4 26 FUEL INJECTION TROUBLESHOOTING DIAGRAMS EFI CIRCUIT Power On EFI CIRCUIT Crank Position Sensor...
Страница 139: ...4 27 FUEL INJECTION 4 EFI CIRCUIT Fuel Pump EFI CIRCUIT Ignition Coil...
Страница 140: ...4 28 FUEL INJECTION EFI CIRCUIT Idle Air Control EFI CIRCUIT Throttle Position Sensor...
Страница 141: ...4 29 FUEL INJECTION 4 EFI CIRCUIT Manifold Absolute Pressure Sensor EFI CIRCUIT Engine Coolant Temperature...
Страница 142: ...4 30 FUEL INJECTION EFI CIRCUIT Air Temperature Sensor EFI CIRCUIT Malfunction Indicator Light...
Страница 156: ...4 44 CARBURETOR SPORTSMAN 450 FUEL TANK FUEL DELIVERY SYSTEM Fuel System Exploded View...
Страница 185: ...5 25 BODY STEERING SUSPENSION 5 X2 CARGO BOX Exploded View...
Страница 188: ...5 28 BODY STEERING SUSPENSION X2 SEAT ASSEMBLY Exploded Views...
Страница 268: ...NOTES FINAL DRIVE 7 40...
Страница 270: ...8 2 GENERAL INFORMATION TRANSMISSION GENERAL Mounting Exploded View x2 x3 x4 x4 x2 x1 x1 x1...
Страница 276: ...8 8 GENERAL INFORMATION 242 262 262 262 262 262...
Страница 318: ...NOTES BRAKES 9 30...
Страница 337: ...10 19 ELECTRICAL 10 ALL WHEEL DRIVE AND SPEEDOMETER TROUBLESHOOTING TEST 1 No All Wheel Drive...
Страница 338: ...10 20 ELECTRICAL TEST 2 No Speedometer Display TEST 3 No Reverse Speed Limit...
Страница 339: ...10 21 ELECTRICAL 10 TEST 4 No AWD Hub Safety Limit...
Страница 340: ...10 22 ELECTRICAL TEST 5 Reverse Speed Limiter Activated In Forward Gear TEST 6 Wheel Speed Sensor...
Страница 341: ...10 23 ELECTRICAL 10 TEST 7 Fuel Gauge Display Not Working TEST 8 Shift Indicator Not Working...
Страница 347: ...10 29 ELECTRICAL 10 Components of EFI Alternator and DC CDI Ignition System...
Страница 348: ...10 30 ELECTRICAL EFI Ignition System Testing Flow Chart...
Страница 353: ...10 35 ELECTRICAL 10 PDM...
Страница 363: ...10 45 ELECTRICAL 10 Starter Lockout Diagram EFI Starter Lockout Diagram Sportsman 450...
Страница 369: ...10 51 ELECTRICAL 10 BASIC WINCH WIRING Pre wired Models...
Страница 370: ...10 52 ELECTRICAL TROUBLESHOOTING DIAGRAMS Power On EFI Start Circuit EFI To ECU Pin 12...
Страница 371: ...10 53 ELECTRICAL 10 Ignition Coil EFI Fuel Pump EFI...
Страница 372: ...10 54 ELECTRICAL Fan EFI Charging System EFI...
Страница 373: ...10 55 ELECTRICAL 10 All Wheel Drive EFI Transmission Switch EFI...
Страница 374: ...10 56 ELECTRICAL Reverse Override EFI Differential Solenoid X2...
Страница 383: ...11 3 500 EFI INTERNATIONAL QUADRICYCLE 11 Exploded View Foot Brake Supply Hand Brake Supply...
Страница 386: ...11 6 500 EFI INTERNATIONAL QUADRICYCLE 500 INTERNATIONAL QUADRICYCLE ELECTRICAL Turn Hazard Signal Diagram...
Страница 392: ...IX 6...
Страница 393: ...WD 1 WIRE DIAGRAM 2007 SPORTSMAN ACTIVE DESCENT CONTROL ADC WIRE DIAGRAM...
Страница 394: ...WD 2 WIRE DIAGRAM INTENTIONAL BLANK PAGE...
Страница 395: ...WD 3 WIRE DIAGRAM 2007 SPORTSMAN 450 WIRE DIAGRAM...
Страница 396: ...WD 4 WIRE DIAGRAM...
Страница 397: ...WD 5 WIRE DIAGRAM 2007 SPORTSMAN 500 EFI STANDARD WIRE DIAGRAM...
Страница 398: ...WD 6 WIRE DIAGRAM...
Страница 399: ...WD 7 WIRE DIAGRAM 2007 SPORTSMAN 500 EFI DELUXE WIRE DIAGRAM...
Страница 400: ...WD 8 WIRE DIAGRAM...
Страница 401: ...WD 9 WIRE DIAGRAM 2007 SPORTSMAN 500 EFI INTERNATIONAL WIRE DIAGRAM...
Страница 402: ...WD 10 WIRE DIAGRAM...
Страница 403: ...WD 11 WIRE DIAGRAM 2007 SPORTSMAN 500 EFI X2 WIRE DIAGRAM...
Страница 404: ...WD 12 WIRE DIAGRAM...
Страница 405: ...WD 13 WIRE DIAGRAM 2007 SPORTSMAN 500 EFI X2 QUADRICYCLE WIRE DIAGRAM...
Страница 406: ...WD 14 WIRE DIAGRAM...