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Wire Color

Check to Wire Color

Resistance

DVA Reading

Red wire

Yellow wire

320-550

Not Available

Blue wire

Yellow wire

3600-5500

Not Available

Green wire

Engine Ground

--

180V or more Connected

Mercury

Alternator Driven Ignitions Two Cylinder Engines 1971-1975 (With Phase-Maker Ignition) NO SPARK ON ONE OR BOTH CYLINDERS:

  • 1.

    Disconnect the orange stop and retest. If the engine now has spark, the stop circuit has a fault.

  • 2.

    Check the Stator resistance and DVA output as given below:

  • 2.

    Disconnect the points wires (Brown and White) one at a time and retest. If the spark comes back on the one still connected when you disconnect one of them, the points or points wire is defective for the disconnected cylinder.

  • 3.

    Disconnect the Green wires one at a time and retest If the spark comes back on one cylinder, the ignition coil not connected is defective. Remember that the coils must not be the Black or Blue coils (these coils are not isolated ground).

  • 4.

    Test the 336-4516 module as follows:

46

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