[Dusty2019]

Okay I was riding my motorcycle and was pulling out of his yard soon as I got on black top in 1st gear I punched the fuel to it and let off, well when I let off that back tire jumped three or four times and when it did that it automatically started making a knocking sound would anyone have any ideas on this?

 

[rv6john]

Welcome to the forum.

Did it stop doing it? If not where is the noise coming from?

 

[Tinsnips]

Do you have excessive chain slack?