So here's my situation. After spending a ridiculous amount of time getting a new set of Termi slip ons mounted to an old bike, I proceeded to the simple task of installing the FbF chip.
Upon removal of the ECU I heard something rattling around in it.
Further investigation revealed an MR2520L doohickey bouncing around in there. According to Google this is an "Overvoltage transient supressor". I also found where it should go on the circuit board. I've built a few guitar amplifiers and feel confident I can solder this thing back in but it brings up a few questions.
Why the hell would this fall out of place? It's held in by two solder joints. They BOTH failed??? Could it have gotten so hot it melted the joints? Here's the back story - the regulator failed last spring and enough voltage was getting pumped into the battery (a brand spanking new EarthX lithium battery with built in overvoltage protection) that said battery literally melted down in spectacular fashion. According to EarthX this takes 50+ volts to do. Regulator has been changed...
Overlooking WHY it fell out, I would think it best to buy a new one to replace it with. It looks like one end is labeled "+". So how would the new part be oriented? I would think the "+" side would go to the left in the picture below but that's based on nothing more than guessing the outside edge is to ground which is how I've set up tube amps.
More fun - it seems the part is labeled "obsolete" from my typical sources... Suggestions? There's got to be something similar out there.
The chances this fell out after the bike was put away for the year is slim. That makes me think the bike will run without it. But it's there for some reason so is there anything that might also be toast due to running without this?

