Try our new info resource - "Aladdin's Cave" (Main menu)Just added a separate link to Ash's Dropbox thread (shortcut)
Just looked at the pics on my pc rather than my phone. Yes, looks like a repair of some sort. Not that unusual really, when I was much younger and crazy I trashed 3 in a coupe of years, hard riding two up, it didn't have a centre stand, so the alternator cover was the first thing on the left hand side to scrape the road in a fast left hander. It didn't take long to grind right through the alloy and start leaking oil. I did a quick bodge with plumber's solder and a blowtorch first time, with it still on the bike. Stopped the leak till next time! Don't panic, they are all the same for all the 750s, only difference is the F2 one is painted black. There are plenty of good used ones about, and several places still have new old stock ones around £100-150.