Knock-back shifting

Hello to everyone. My vehicle is 2004 xr manual. Although I have pressed the clutch all the way down, the gear shifts as if the clutch was not fully depressed while engaging reverse gear. There is no such problem in other gears, just the second gear is a little difficult. In this case, can we call the problem print pad? If I say that the clutch does not separate fully, I know that the adjustment is not possible, hydraulic automatic. The person I bought the tool said that he changed the pad last year and did not use the tool much, he did not look like someone to lie, but I don't know, however, nobody can be trusted in this era.

Hello, my teacher has changed, but what brand of pressure did he use? I changed the prizdrek ball. It comes to the mind of people like questions.