SERVICE RELEASE N3
NATURE OF RELEASE:
Carburetter Specification Change
MODELS AFFECTED:
Commando
PARTS AFFECTED:
Megaphone silencer
DISTRIBUTION:
Home and Overseas
EXPLANATION:
To meet recent U.S.A. legislation it has been necessary to introduce megaphone silencers modified to provide a lower noise level than the original megaphone type. The later type are modified by the fitting of a perforated tube in the end cone and their use necessitates the fitting of smaller main jets. The two types of silencer end cone are shown below:
ACTION:
Examine the megaphone silencer end cone. If this is hollow as the early type above, the jet size should be 220. If the end cones have a perforated tube as in the late type above, the main jet size should be 180.
March 1970
Norton Villiers Canada Limited