Boyer Coil Testing?

Greetings from a very cold garage in Wiltshire.

Getting close to finishing the rewire of my 750. Decided to double check my new Boyer twin output coil was ok and although i've got 4 ohms across the terminals I get nothing as a secondary resistance when I measure between +ve and one of the coil lead connections. Datasheet says I should be getting 17.5K, am I missing something?

Any advice gratefully received as always.

Darren.

Testing the Coil

1. Using the lowest scale on the meter, measure the resistance between the primary terminals with the wires removed. Should read from 2.5 to 4.5 Ohms.
2. Using the highest scale on the meter, measure between one of the primary terminals and the center core of the coil. Should be infinite resistance. (open)
3. Measure between one of the primary terminals and one of the plug wire terminals. Should be infinite resistance. (open circuit)
4. Measure between one of the plug wire terminals and the core of the coil. Should be infinite resistance (open circuit)
5. Measure from one plug terminal to the other. Should be 15,000 to 20,000 Ohms

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L.A.B. said:

Ignition Coil Testing - Instructions

Testing the Coil

1. Using the lowest scale on the meter, measure the resistance between the primary terminals with the wires removed. Should read from 2.5 to 4.5 Ohms.
2. Using the highest scale on the meter, measure between one of the primary terminals and the center core of the coil. Should be infinite resistance. (open)
3. Measure between one of the primary terminals and one of the plug wire terminals. Should be infinite resistance. (open circuit)
4. Measure between one of the plug wire terminals and the core of the coil. Should be infinite resistance (open circuit)
5. Measure from one plug terminal to the other. Should be 15,000 to 20,000 Ohms

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Click to expand...

Thanks L.A.B - got it in my head that the measurement was between primary and plug terminal,