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System Spark Test

  1. If starter turns but engine will not start (or if engine fails to develop sufficient power), hold distributor end of coil wire about 3/8" (10 mm) from engine block. Crank engine. See Fig 1 .
    Fig 1: Coil Wire Hookup For Making an Ignition System Spark Test
    G29052
  2. If spark jumps gap, check distributor cap, rotor, cables, and spark plugs. Be sure ignition timing and fuel system are okay. If no sparks occur, perform the following tests.