Turn the leather jacket inside out again and sew the patch of leather you put over the tear to the inside of the jacket. After this is done, the repair is complete.

If you have leftover glue around the tear, then this would be the time that leather cleaner would be used. Making your own leather cleaner can be done using warm water and "Dawn" original dish soap.

Make sure you use a sturdy needle because leather is a very thick fabric. "Singer" makes needles that will fit this criteria. Also, make sure that the hole on top of the needle is big enough for the thread.