Reported Jul 7, 19804,690 vehicles affectedHARLEY-DAVIDSON MOTOR CO.Built Jun 1, 1979 – Jun 1, 1980
The defect
On certain vehicles there may be a gradual loosening of the rear sprocket bolt(s) and a decrease in the clamping force necessary to maintain a secure attachment of the rear wheel sprocket to the wheel.
The remedy
Dealer will replace the (5) rear wheel sprocket bolts at no charge.
Vehicle description: motorcycles.system: suspension; rear wheel sprocket, mounting bolts.consequences of defect: this could cause the rear brake caliper pistons toretract, resulting in a "spongy" feel in the brake. Should bolt(s) disengagefar enough, they may interfere with the spacer plate and cause the rear wheelto lock up at low speeds. This could result in loss of vehicle control and anaccident.note: manufacturer advises that the motorcycle should not be ridden until thecondition has been corrected.