Norton Service Release Database N17

SERVICE RELEASE N17

NATURE OF RELEASE: Horn adjustment MODELS AFFECTED: All Commando PARTS AFFECTED: 031010 DISTRIBUTION: U. S. A only. EXPLANATION: To meet Federal Legislation it is necessary for the horn to be kept in proper adjustment. There is an adjuster screw with looknut for this purpose, working on to the centre of the horn diaphragm. The horn is mounted just above the swinging srm pivot. If there is any doubt that the horn is not working at full efficiency, it must be dismounted from the motoroyole since there is insufficient room for adjustment in situ.   ACTION: The horn should be mounted by the bracket in a vice wihilst adjustment is carried out. Connect one horn terminal to a 12 volt battery in a good state of charge. Now touch a lead from the other battery terminal to the second horn terminal. This shculd be momentary contact only, not sustained contact which could damage the horn, The horn should sound loud and clear but if it does not, hold the slotted adjuster with a screwdriver and slacken the large hexagonal looknut, NOW, by turning the adjuster in or out in 1/16" intervals and sounding the horn each time, the best position will be found. Hold the adjuster whilst the locknut is tightened and finally check that adjustment has not been lost, by sounding the horn again. If all is well, the horn can be refitted on the motorcycle. August 1970 Norton Villiers Canada Limited