kymco mo p250 Instruction De Maintenance

GENERAL INSTRUCTIONS
• Check the ignition system according to the sequence specified in the Troubleshooting. (!1-28)
• The ignition system adopts CDI unit and the ignition timing cannot be adjusted.
• If the timing is incorrect, inspect the CDI unit and A.C. generator and replace any faulty parts.

Inspect the CDI unit with a CDI tester

• Loose connector and poor wire connection are the main causes of faulty ignition system.  Check

each connector before operation.

• Use of spark plug with improper heat range is the main cause of poor engine performance.

• The inspections in this section are focused on maximum voltage. The inspection of ignition coil

resistance is also described in this section.

• Inspect the ignition switch according to the continuity table specified in page

 19-3.

• Inspect the spark plug referring to Section 3.
• Remove the A.C. generator and pulser coil referring to Section 10.

Item

Standard

 Spark plug

Standard type

NGK DPR7EA9

 Spark plug gap

0.7mm

  Ignition  timing

 “F” mark

 Full advance

repeatedly

  Primary coil

3.6_

4.1W

 Ignition coil resistance

(20℃ )

 Secondary  without plug cap

14KW

 coil

 with plug cap

19KW

 Pulser coil resistance (20℃ )

105_

110W

 Exciter coil resistance (20℃ )

1.8_

2.1W

 Ignition coil primary side max. voltage

14V

 Pulser coil max. voltage

1.6V

 Exciter coil max. voltage

14V

TESTING INSTRUMENT
Electric tester: YF-3501

• Faulty spark plug

• Ignition primary circuit

• Poorly connected, broken or shorted wire

—Faulty ignition coil

• Faulty ignition switch

—Poorly connected wire or connector

• Faulty ignition coil

—Poorly contacted ignition switch

• Faulty CDI unit

• Ignition secondary circuit

• Faulty A.C. generator

—Faulty ignition coil

—Faulty spark plug

—Faulty high-tension wire

—Poorly insulated plug cap

• Improper ignition timing

—Faulty A.C. generator

—Stator not installed properly

—Faulty CDI unit