Bought this old 50 model, got it running, and installed rebuilt master cylinder. Used a vacuum device to bleed brakes, but was able to get fluid only on left front. Had my wife assist me to use old pump up method to bleed other 3 wheels, but was unable to get any fluid out of any of the other three. Previous owner said he installed new wheel cylinders. Petal does not go to floor now, and LF wheel does stop vehicle, but I don't want to drive until it's right. So, where would you recommend I start?
