here is a link to a new needle threader for your machine...but in the future make sure that the screw holding your foot on is tight..when it's loose, and the foot wobbles, that's when your needle hits it and you have problems.
https://www.sewingpartsonline.com/needle-threader-juki-singer-77421.aspx
Last edited by donna13350; 02-17-2019 at 05:10 PM.