Hey all, I noticed last summer that when I start my bike, the exhaust will spit some small particle of what looks to me like oil or similar. It is pretty evident on the cement floor. After a few minutes of warming up, it stops. I have not noticed anything besides that. No noticeable performance loss and no other related noise or whatsoever. It still does that today. Judging by the picture, is t something comon and normal or should I worry???? Thank you for your opinion