There are several Youtube videos which demonstrate the sequence of basic techniques (kihon) required for each grading. I have collected some of them here to assist students preparing for their gradings.
In my opinion, the best demonstration of ALL the sequences can be found in a single video on Youtube if you search “KRT – IFK syllabus” where you can see the sequences demonstrated by two of most technical karatekas you can find. But if you want videos of the different gradings, one by one, try the following.
10th kyu
9th kyu
8th kyu
7th kyu
6th kyu
5th kyu
4th kyu
3rd kyu
2nd kyu
1st kyu