I tried to adjust the low end disk on my 180 and it hasn't run the same since! The problem I am having is the mid rang is not responding at all, it goes from idle to 1/4 throttle well, but past that there is no increase in rpm until you get to 3/4 throttle and then it just comes alive. But no mid range. All I did was turn the disk no more than 4 tic marks in either direction, (really not a lot). What did I do wrong? Thanks in advance.

Charles