I would to know do l make all flip flops clear when the counter reaches five or immediately after it reaches 6 ?

 

How about some way to issue a reset signal when the count = 5 and there is a clock?

 

You could try decoding the binary 5 or 6 and then send a low or high signal to the clear inputs, depending whether they are active high or low. I just finished a school project of building a basketball scoreboard with clock and everything else associated and there were some JK's involved. The decoding worked great as a PS signal.