The last two times riding my Domi I’ve been getting popping and backfiring during deceleration. It idles fine, runs so so on acceleration, but the popping and backfiring during deceleration was getting worse. When I would ride it for a few miles, shut the bike off and restart after a fuel fill up for example, it would run great and no popping or backfiring during deceleration. Well, today I was on my way home and when I came in my garage to clean my bike I noticed a small oil trail coming from the cam sensor. The 6Mx1.0 bolt is stripped out! I had a 6Mx1.0x15mm bolt to use instead. Lucky the hole is deep enough and tapped. I cleaned the threads with a tap and all is good. On another note, is this oil bottle level normal for 550 miles? First time I emptied it.