I have bought Unqiue 100 2014 in used about 5-6 months ago it was working fine initially but now giving me some problems, like it front disk break started problem that it lever becomes hard and does not work properly manytimes it does not give any stop sign even on hard push but sometime it stops with jerk was dengerios so I went to mechanic so he replaced the brake shoes, break fluid (I provide him new oil bottle which we use in cars as he was pouring the same oil which he bring out from the bike that also has water in it after mixing it with his old oil of same, so I refuse him to do so) and the seal of the handle side. it was seems to be working better but not as it was initially . After two to three weeks it again become hard and was not that responsive in the slow push , stop with jerk on hard push so today I again went to him, so he tell me break shew are not good , so he ask me to bring brake shew of black lather, so I bring that and he replace it , break is not that responsive even after that I tell him, he keep saying "sir jee aik aad din chalayen break shew disk ke hisab se adjust hojain ge".
Can anyone tell me what could be the problem.
thanks