No, I don't own one, but let me ask the forum members this question. How many reversed polarity as mentioned here, and did the black box survive?
So with battery out, look at how rusty the (+) cable is down at that rusty lug. Remove the red cable, clean contact points by scraping years of electrolysis off that and now find the end of the battery ground and scrape to new metal, those touch contact points. That says the cable loop to the battery/frame, most likely will not in a sense perform the; no/poor/click start scenario.
As JBM suggested, since the battery is out, the cables are clean at all 4 ends, hold both the main and ground cables together. Why? You are going to toggle the start button, kill button, key on, and empty the condensers that have a saved RAM. Some say to hold for so many seconds, but you are going to toggle like crazy those buttons. And for good measure, hold down the buttons per book. By emptying the last saved 'good/bad' know signal, the black box starts at ROM... or 0000... no data found, start on the preset you can't erase.
Then with a set of jumper cables, car engine off, clamp the cables up to the bike and with key on, do you see the lights on the black box looking normal? Don't start the bike. This is just a black box test you waiting for an answer that may never come..
