I ordered this the same day as an OEM from another vender. They both arrived in time for a trip, I installed the OEM and carried this as a spare. On my ride another XR650L was having CDI problems and I offered the Arrowhead unit I was carrying as a spare. When plugged in it immediately caused the main fuse to blow on his bike. We installed the good OEM unit from my bike and it ran fine. Tried the Arrowhead unit one more time with another blown fuse.