I am not familiar with the BME ignition system............... BUT,

On some ignitions, if you flip it over without grounding the plug to the cylinder or engine in some fashion, it can blow the hall sensor out. The plug MUST be grounded or you will blow the hall sensor if you rotate the engine with the ignition unit turned ON.

Like I said, I'm not sure if the BME works that way. I've gotten into the habit of NOT turning my engine over unless I KNOW my spark plug and plug lead are POSITIVELY grounded when that hub magnet passes the hall sensor.

Ask me how I know that............. Thanks Ralph Cunningham, for sending me a new hall sensor after I blew it up by being an idiot. [sm=thumbs_up.gif]