Pick-Up Coil Resistance Check

Set an ohmmeter in the x100 scale. Turn ignition switch "OFF". Disconnect connector between ignitor and distributor. See Fig 1.

Fig 1: Ohmmeter Hookup for Pick-Up Coil Resistance Check
Courtesy of MAZDA MOTORS CORP.

Replace pick-up coil and bearing plate assembly if reading is not 600-700 ohms.
Connect ohmmeter leads to leading terminals and then to trailing terminals. Resistance should be 600-700 ohms at 68° F (20° C) for each set of pick-up coils. If not, replace pick-up coil and bearing assembly.