Weird "Chick" sound while changing transmission in Yamaha YBR 125G

[kazyali101]

Hi..Recently bought YBRG..

Abhi 2500 km howy hen and I noticed kabhi kabhi gear change karne par silencer se ya wahen kahen se "Tick" ya chick" ki awaz ati hai..kabhi zyada kabhi kam..

Please guide.