Tell me how the adjust / replace the brakes on a 65 e are they bands ,disk , pads or what . The left pedal does not do anything but the right has 1/2 pedal . I understand that it works like the old cats (lever is steering clutch & pedal is brake) ? Also what is the lever under the seat with the red knob ?I know that i should Know this but Komy 65's are a new one on me. Thanks