10.25
ELECTRICAL
10
DC / CDI IGNITION SYSTEM (NON-EFI MODELS)
DC / CDI Ignition System Overview
This engine uses a DC / CDI ignition system.
Some of the advantages of DC ignition are:
• Stronger, more consistent spark at low rpm for better
performance
• Easier starts
• Simpler component design for ease of trouble shooting
and maintenance
Operation Overview:
The DC / CDI system relies on battery power for ignition.
Instead of generating DC voltage via magnetic induction, a 12
volt DC current is supplied directly to the CDI unit from the
battery.
At the CDI, 12 volt DC current charges an internal capacitor to
build up the initial ignition charge. A small A/C signal from the
Trigger (Pulse) coil closes a thyristor (located in the CDI) at a
point pre-determined in the crankshaft rotation by magnets on
the flywheel’s outer diameter. This signal releases the electrical
charge which saturates the coil for ignition. DC/CDI systems
have the ability to ignite with as little as 6 volts of power.
NOTICE:
Do not remove the wiring harness from the CDI box
while the key switch is on or while the engine is running.
Damage to the CDI box may occur!
Ignition System Troubleshooting
No Spark, Weak or Intermittent Spark
• Spark plug gap incorrect
• Fouled spark plug
• Faulty spark plug cap or poor connection to high
tension lead
• Related wiring loose, disconnected, shorted, or
corroded
• Engine Stop switch or ignition switch faulty
• ETC switch misadjusted or faulty
• Wire harness or connections wet, corroded.
• Poor ignition coil ground (e.g. coil mount loose or
corroded)
• Faulty stator (measure resistance of all ignition related
windings)
• Incorrect wiring (inspect color coding in connectors
etc)
• Faulty ignition coil winding (measure resistance of
primary and secondary)
• Worn magneto (RH) end Crankshaft bearings
• Sheared flywheel key
• Flywheel loose or damaged
• Trigger coil air gap too wide (where applicable) -
should be .016 - .030" (.4 - .75 mm)
• Excessive crankshaft runout on magneto (RH) end -
should not exceed .0024”
• Faulty CDI module
Maximum Timing
NOTE:
DC/CDI systems and
components are not
interchangeable with
any other system.
Содержание Ranger 500 2x4 2007
Страница 1: ......
Страница 7: ...1 5 GENERAL INFORMATION 1 VEHICLE DIMENSIONS 113 in 287 cm 58 in 147 cm 76 in 193 cm RANGER 2X4 4X4 ...
Страница 20: ...1 18 GENERAL INFORMATION SAE Tap Drill Sizes Metric Tap Drill Sizes Decimal Equivalents ...
Страница 82: ...3 23 ENGINE 3 Cylinder Head Exploded View EH50PL EFI Shown A A ...
Страница 153: ...4 45 ELECTRONIC FUEL INJECTION 4 Fuel Pump Circuit Ignition Coil Circuit ...
Страница 154: ...4 46 ELECTRONIC FUEL INJECTION Idle Air Control IAC Circuit Throttle Position Sensor TPS Circuit ...
Страница 155: ...4 47 ELECTRONIC FUEL INJECTION 4 Manifold Air Pressure Sensor MAP Circuit Engine Coolant Temperature Sensor Circuit ...
Страница 156: ...4 48 ELECTRONIC FUEL INJECTION Intake Air Temperature Sensor IAT Circuit Malfunction Indicator Light MIL Circuit ...
Страница 157: ...4 49 ELECTRONIC FUEL INJECTION 4 Diagnostic Connector Circuit ...
Страница 296: ...10 10 ELECTRICAL POWER DISTRIBUTION MODULE NON EFI MODELS PDM Operation ...
Страница 309: ...10 23 ELECTRICAL 10 EFI Cooling System Break Out Diagram PDM RD WH Key On 12 V Power ...
Страница 331: ...10 45 ELECTRICAL 10 ELECTRICAL BREAKOUT DIAGRAMS EFI MODELS Starting Circuit Key On Power Circuit ...
Страница 332: ...10 46 ELECTRICAL Transmission Switch Circuit Differential Solenoid Circuit ...
Страница 333: ...10 47 ELECTRICAL 10 Charging System Circuit Cooling Fan Circuit ...
Страница 334: ...10 48 ELECTRICAL AWD Circuit ...
Страница 339: ...WD 1 WIRE DIAGRAM RANGER 500 2X4 4X4 CHASSIS ...
Страница 340: ...WD 2 WIRE DIAGRAM RANGER 500 2X4 4X4 DASH ...
Страница 341: ...WD 3 WIRE DIAGRAM RANGER 500 EFI 4X4 CHASSIS PAGE 1 OF 2 ...
Страница 342: ...WD 4 WIRE DIAGRAM RANGER 500 EFI 4X4 CHASSIS PAGE 2 OF 2 ...
Страница 343: ...WD 5 WIRE DIAGRAM RANGER 500 EFI 4X4 DASH ...
Страница 344: ...WD 6 WIRE DIAGRAM RANGER 500 EFI 4X4 BREAKOUTS ...
Страница 345: ...WD 7 WIRE DIAGRAM RANGER 500 2X4 4X4 BREAKOUTS ...