zing 125 qe Workshop-manual : Page 140

          15. IGNITION SYSTEM                                                    ZING125

 IGNITION COIL
 CONTINUITY TEST
 Remove the left decorative cover under the
 fuel tank.
 Disconnect the ignition coil black/yellow
 wire coupler and measure the resistance
 between the ignition coil primary wire
 terminals.
 Resistance: 0.20.3




 Remove the spark plug cap and measure the
 secondary coil resistance between the spark
 plug wire and the primary coil terminal.
 Resistance: 3.24.8 (without plug cap)

 This test is for reference only. Accurate
   test should be performed with a CDI
   tester.




 Measure the spark plug cap resistance.
 Remove the spark plug cap and measure the
 spark plug resistance.
 Resistance: 4.25.8K
 Measure the resistance in the XK
   range.




                                                Ignition Coil         CDI Tester
 PERFORMANCE TEST
 Test performance with a CDI tester.
 · Operate    the CDI tester by following
      the manufacturer`s instructions.
    · Use the special connector to connect
      the CDI unit.
 If the spark is weak, inspect the spark plug
 and CDI unit. If both of them are normal,
 replace the ignition coil with a new one.

                                                Spark Plug      CDI Unit
15-3