|The right switch mounting plate is fixed to the front master cylinder studs, the threads of the nuts differ depending on whether the bike is fitted with Lockheed ( imperial ) or Scarab ( metric ) brakes. There is also a small rubber seal to protect the wiring through the plate.|
|The three position light control switch located on the dash between the instruments had functions for off, parking lamps and headlamp. There is a second variation in the switch grip, the later version having a plastic coined and shaped grip with Aprilia written on the side.|
|The rear brake lamp switch was made by Burgess in England.
Click on the image for a view of the switch front and rear.
The switch can be disassembled carefully, the contacts cleaned, then a smear of dielectric grease on the contacts and assemble.
|The horn fitted to the '72 model was a CEV12v. There is no separate relay.
Later bikes were fitted with either a single ( Alto ) or dual ( one each of Alto and Basso ) Voxbell units. The single horn units were reasonably loud. They can be deriveted and rechromed as necessary.
On the rear of the body is an adjusting screw and locknut which is used to adjust the tone of the horn if necessary.
|Click on the headlamp front image for a close up of the Aprilia greyhound logo.One of the headlamp beam adjuster screws is visible in the side view. This lamp has been replated and the mounting ears which were originally riveted on were removed and replaced with button head screws.|