Spacer plate for the HP4 ignition on Vespa PX, T5 and Cosa engines. If the tolerances of the engine housing, crankshaft, ignition base plate and fan wheel add up unfavorably, this can lead to a fluttering ignition timing. The reason for this is that the pick-ups in the fan wheel are not aligned with the pick-up. In order to compensate for this difference, we offer you this packing [...]
