Service brakes, hydraulic › Foundation components › Master cylinder
Reported Jun 2, 1980306 vehicles affectedHARLEY-DAVIDSON MOTOR CO.Built Aug 1, 1979 – Aug 1, 1979
The defect
There IS a possibility that the use of a non-specified material in the plastic piston of the master cylinder assembly may allow a greater degree of water absorption than intended by harley davidson.
The remedy
Manufacturer will inspect all suspect cylinders discovered in dealer"s parts inventories and will inform owners about replacement procedures.
Vehicle category: motorcycles.system: service brakes; rear brake master cylinder; harley davidson, part no.424 15-79.consequences of defect: depending on the moisture content of the brake fluid, aplastic piston made of this non-specified material may stick in the mastercylinder piston bore, causing loss of vehicle control and an accident.