Chapter 2 Fuel System & Carburetion
II-2
2
Troubleshooting
Engine cranks but won’t start
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No fuel in tank
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No fuel to carburetor
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Engine flooded with fuel
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No spark at plug (faulty ignition system)
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Clogged air cleaner
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Intake air leak
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Improper choke operation
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Improper throttle operation
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Faulty fuel valve
Hard starting or stalling after
starting
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Improper choke operation
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Ignition malfunction
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Faulty carburetor
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Contaminated fuel
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Intake air leak
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Incorrect idle speed
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Faulty fuel valve
Rough idle
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Faulty ignition system
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Incorrect idle speed
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Faulty carburetor
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Contaminated fuel
Misfiring during acceleration
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Faulty ignition system
Backfiring
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Faulty ignition system
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Faulty carburetor
Poor performance and fuel
economy
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Clogged fuel system
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Faulty ignition system
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Faulty fuel valve
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Faulty components in the evaporative
emission control system (US version only)
Lean mixture
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Clogged fuel jet
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Stuck vacuum piston
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Faulty float valve
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Low float level
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Blocked fuel cap vent
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clogged fuel line
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Restricted fuel line
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Clogged air vent tube
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Intake air leak
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Faulty fuel valve
Rich mixture
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Clogged air jets
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Faulty float valve
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Float level too high
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Improper choke operation
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Dirty air cleaner
Summary of Contents for 2002 ATV-320 S
Page 14: ...Chapter 1 Engine Transmission Gear I 5 Cylinder Head Cover 1 5 2 3 7 6 4 8 11 10 9 5 5 5 9...
Page 15: ...Chapter 1 Engine Transmission Gear I 6 Cylinder Head 2 3 4 4 5 6 7 8 9 11 10 12 12 13 14 18...
Page 16: ...Chapter 1 Engine Transmission Gear I 7 Camshaft Valve Cam...
Page 29: ...Chapter 1 Engine Transmission Gear I 20 Cylinder Piston Crankshaft...
Page 36: ...Chapter 1 Engine Transmission Gear I 27 Crankcase...
Page 40: ...Chapter 1 Engine Transmission Gear I 31 Right Crankcase Cover...
Page 42: ...Chapter 1 Engine Transmission Gear I 33 Cooling system...
Page 47: ...Chapter 1 Engine Transmission Gear I 38 Left Crankcase Cover...
Page 54: ...Chapter 1 Engine Transmission Gear I 45 Transmission...
Page 61: ...Chapter 2 Fuel System Carburetion II 3 3 CARBURETOR...
Page 65: ...Chapter 2 Fuel System Carburetion II 7 7 FUEL TANK...
Page 68: ...Chapter 2 Fuel System Carburetion II 10 10 AIR CLEANER ASSEMBLY...
Page 70: ...Chapter 2 Fuel System Carburetion II 12 12 EXHAUST SYSTEM...
Page 78: ...Chapter 3 Ignition and Starting System III 7 Recoil Backup Starting System...
Page 81: ...Chapter 4 Frame Cover IV 2 FRAME BODY 320S...
Page 82: ...Chapter 4 Frame Cover IV 3 FRAME BODY 320U...
Page 83: ...Chapter 4 Frame Cover IV 4 BODY COVER SEAT 320S...
Page 84: ...Chapter 4 Frame Cover IV 5 BODY COVER SEAT 320U...
Page 91: ...Chapter 5 Wheels Tires Brakes V 2 HANDLE BAR...
Page 92: ...Chapter 5 Wheels Tires Brakes V 3 STEERING MPH...
Page 95: ...Chapter 5 Wheels Tires Brakes V 6 FRONT REAR WHEEL...
Page 98: ...Chapter 5 Wheels Tires Brakes V 9 FRONT SUSPENSION...
Page 99: ...Chapter 5 Wheels Tires Brakes V 10 REAR SUSPENSION SWING ARM SUB ASS Y...
Page 103: ...Chapter 5 Wheels Tires Brakes V 14 HYDRAULIC BRAKE SYSTEM...
Page 104: ...Chapter 5 Wheels Tires Brakes V 15 BRAKE CALIPER...
Page 114: ...Chapter 6 Alternator Electrical Equipment VI 2 Alternator Starter Gear...
Page 125: ...Chapter 6 Alternator Electrical Equipment VI 13 Wire Diagram...