05 WR450F how to wire up an hour meter

I have an hour meter that I want to install on my WR450. I followed the instructions but meter won't run is there a special way with this bike that I need to do .Like wiring up to the spark plug a different way. Help?:cool:

Did you wrap the sensor wire about three times around the top of the coil? Will not work if you wrap it aroung the power cables.

Correct, be sure to wrap it around the coil as it needs to sense the high voltage spike from the coil by induction to record properly.

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