I have a 1981 Honda GL 500 it has a single disc front brake and a drum brake in the rear,the rear brake works just fine but the disc brake in the front seems very weak. the lever feels firm but even if i squeeze it as hard as i can it only applys so much braking power,its not enough to stop the bike in any reasonable time. does this sound like a master cylinder issue? it isn‘t a soft feeling brake if anything it feels too firm,there is brake fluid in the reservoir, i am pretty certain that this bikes braking ability should be better then this what does this sound like to you? what should i check or adjust?
