Tri-Spark coils have extra windings using heavier wire and a high grade core for improved spark energy and duration.
Warning - These coils discharge with a very high voltage so extra care must be taken to always have a spark plug connected to the HT output.
Primary resistance 3.5 ohms - may be used with the Classic Twin system as an alternative to using 2 x 6 volt Lucas Style coils.
Mounting hole spacing is 90mm. Click here for a dimension drawing of the dual lead coil
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