I have an 04 gsx-r1000 and i was riding yesterday for about an hour and a half then all of a sudden as I was pushing it in second my bike muffler started throwing fire. It would chug and then my red light would come on and the bike would shut off. It tried kicking back into gear but couldn’t. I would pull over and turn it off for about 3-5 mins and then it would start but would shut off if i had to stop or it it chugged again. Before this happened I hit about 110mph just fine. When I got home I had noticed a small oil leak, I just got my oil changed yesterday so I was assuming they just didn’t tighten the bolt. Could it be that or is it something more serious? Also forgot to add I did get it lowered yesterday as well!