Ok so I let my friend ride my busa last weekend. I get the bike back and clutch slipping so I tried to turn around and head home and the clutch went out then the oil cap pop out. So I pulled over immediately that’s when I notice the oil cap missing. So I get another oil cap and the bike wouldn’t start. I then got a jump and t fired back up. I tried again to make it home riding around 60mph in which this was as fast as it would go. Then it happened again at high rpms the clutch completely burnt up and oil cap gone again. Meanwhile both time the bike stil had sufficient amount oil in it. So I brought it to a shop they replaced the clutches dried the oil pan and only to see clutch pieces in the oil pan clutch basket had groves in it. So we replaced the clutch basket new clutches . Then when we try to start the bike it has an rough start after letting it sit we get even a tougher start. Then after letting it sit a minutes the battery dies and won’t start unless we charge or jump it. We also tried a new battery same issue. I told them to put cheap ok in run it for some time in place then drain and new oil again right. My question is why is the battery dying why is the bike starting rough. I’m kinda scared after horrible stories about motors being messed up motor seal etc. but when the bike is running the motor sounds fine , we have no ride it we are trying to determine the issue at hand. Any help for I for sure don’t want to do motor work n a 2014 hayabusa with only 14,000 miles on it, this bike never had any issues until now