Service brakes, hydraulic › Foundation components › Master cylinder

Harley-Davidson 1000 and 1 more

Reported May 10, 19793,074 vehicles affectedHARLEY-DAVIDSON MOTOR CO.Built Nov 1, 1976 – Dec 1, 1977

The defect

The involved cycles were produced with a rear brake master cylinder push rod which has insufficient contact area with the rear brake master cylinder piston. This could result in the rod penetrating the piston during extremely high pedal effort.

Official recall at NHTSA ↗

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Vehicles in this recall

Harley-Davidson 1000

1977 1978

Harley-Davidson XLCR1000

1977 1978

Notes

Vehicle description: motorcycles.system: service brakes; hydraulic, master cylinder.consequences of defect: loss of rear brake performance could lead to loss ofvehicle control and an accident.note: although operator would still have full use of the front brake, vehicleshould not be operatwill install a redesigned, larger push rod and replace the master cylinderat no cost to owner.

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