Norton Service Release Database N3/11

SERVICE RELEASE N3/11

NATURE OF RELEASE: Silencer Mute MODELS AFFECTED: All Commando DISTRIBUTION: Worldwide (for general distribution) EXPLANATION: In order to improve the acceleration characteristics of 1972 Commando models fitted with Combat engines, where silencing motes have been fitted to the mufflers, a new mute has now been introduced under the following part number 063763 Mate 063763 mute is identical to the previous 061984 mute, apart from the outlet bore size, which has been increased from 3/4 in. (19mm) diameter, to 1in. (25.4mm) It is permissible to amend existing stocks. The new outlet diameter bore mutes should only be fitted in pairs. Carburation and effective noise levels are not affected.   June 1972 Norton Villiers Canada Limited