Replying to Px forward pressure

Ok, from what i understand its supposed to be half black, half yellow, or half white, half black, depending on year. mine is all yellow, and i find that when i click in, sometimes i have to stomp on em to get em to click all the way.
2 questions
a) does that mean the forward pressure is too tight or too loose
b) how do i fix it. and dont tell me to go to a shop, i know what they are supposed to look like (half and half) i just cant figure out how to set it.