hey im very new and im fixing up a go kart that i bought awhile ago and im on stuck on trying the unsrew this screw on this master cylinder but i think i already striped it and i was wondering if anybody can help me unscrew it, sorry if i look dumb im just very new and i really want to race this kart, also i want to unscrew this so i can bleed my brakes
Use a centre punch, hit directly down (where the dot is) once to get a good indent then angle the centre punch so it is going counter clockwise about 45 degrees and hit it a few times until it starts turning.
Alternatively you could get a triple square set and smack one in that is slightly larger.
Another option you could try is with a Dremel tool with a small cut off wheel, cut a slot across the top of the cap and use a flat blade screwdriver to remove it.
or
There are extraction tools that might work in that situation, but usually they need to be drilled into the head deeper, depending on the type you use.