Have a problem, GG300 2005 model, front brake master cylinder the plunger is catching must be crap in there or worn . Went to get a kit to put in only to find gas gas do not list a kit for the nissin front brake, have to buy new one! it is not a sealed unit and can be taken apart so you must be able to get a kit for it. There must be another bike that runs same nissin front brake and hopefully I can get a kit for it. Can anyone help.