i have a question about gear shifting. When the bike is in neutral and i put it in first gear it makes a loud noise, and the bike shakes a little i bought the bike 3 weeks ago and it only did that sometimes, now it keeps on making a loud noise, pleeeeasseeee help am i braking the bike if i still ride it like that?

 

Normal.

 

Uh oh, that sound sounds like the engine broke. Irreparable.
Sell her to me.