Help, Core 95 brake problem

very simple

check if u press the pedal and it goes much down to get its brake applied?

if yes then go for bleeding of its oil.

check oil level first.

after bleeding if u feel you have good brake now its done if not then you have to check its master brake cylinder which is just before the brake oil botle. infact this bottle is fit on brake booster.

if u want to go for a D.I.Y then open it and take all oil out of it. take bottle off from it.
now taken out the rubber washels from it check if these are working fine, if these are old enough then change them
check the piping of master cylinder by inserting and checking the inner surface of this pipe, do u feel smooth or scrached.

get new washals for it. after fixing the washals put lock over it which is also like washals but dont let washesl come out of it.

now pull and push the inner cylinder to check the working of it.

after fixing everything, put the bottle on it tight it properly and then fit it back there.

now insert oil upto required level and apply brake obviously you will find it not working now open the brake oil pipe which is coming to tyre. open it bleed it.
some air will be inside it after bleeding some oil will waste but try to get a full pressurized brakes upto ur demand.

bleeding

open the oil pipe which is coming from brake booster to your tyre and prss brake sevel time then press it hard once it will graduallly go down.
repeat this process to gain maximum brake working

then go for test drive.

check oil level again and make it practice for a week atleast make sure it remains at its level.

tighten the oil pipes with hubs where they are fit.

require more assistance let me know.

always remember jo mechanic dekh ker na samajh sakay ke prob kia hai ya to wo nalaiq hai ya phir us ne paisay bananay hain.
in pakistan we encounter both properties in same mechanic :p