Lambretta Electronic Ignition CDI Coil Anti Vibration Rubber MRB0841
Electronic CDI coils fail every now and then. This can sometimes be caused from vibration. This rubber fits between the mounting point and coil.
Use studs, nyloc nuts and washers if you can (or screws) but don't over tighten them so there is some flex and movement in the coil.
Fits all Lambretta/Vespa type electronic coils.