Conversion wiring harness to convert to: PX alternator or PX engine in Rally, Sprint, VBB, Super, VNA, VNB, etc. PK alternator or PK engine in V50, Primavera, ET3, V90 etc. Converting to a more modern alternator/ignition type is an effective way to travel more permanently and safely. The non-contact CDI ignitions are almost indestructible and reliable, and the light output is also many times higher with modern, controller-supported on-board electrical systems, as not only is the voltage increased from 6 volts to 12 volts, but the ignition base plate can also generally produce more power . To do this, it is necessary to adapt the wiring harness, since with modern electrics the alternators have all the light coils connected in series for maximum power output and there is only one live cable as an output for the on-board voltage. This is then fed to the voltage regulator, which limits the on-board voltage to a constant 12-13 volts. This effectively prevents the dreaded domino effect of the old electrical system, in which all the bulbs burn out one after the other after a single one is defective. Only after the regulator is the current routed to the individual consumers. This technology also means that a very powerful alternator such as our BGM ignition base plate can be used, which guarantees high light output and ignition performance even at low speeds. In order to use such an alternator in the old chassis, you need a suitable wiring harness. Our conversion wiring harness is exactly the right thing and can also be used very universally. It is based on electronics that are reduced to the bare essentials and which fire the horn/buzzer, driving lights/low beam and the tail/brake light. It is optionally possible to install a flasher relay; the wiring harness is already prepared for this. In conjunction with our BGM 12-volt voltage regulator, this results in a very modern on-board electrical system that, in addition to a brilliant and powerful light output, also has gimmicks such as a direct current output for the charging function of a cell phone or, for example, a navigation device. When using our conversion wiring harness, a battery is no longer required. Any existing 6V ratchet can still be used; it can easily handle the occasional 12V. Further technical information is provided in our circuit diagram. reliable electronic ignition - never adjust contacts again very high luminous efficacy with 12 volt on-board voltage optional direct current for the charging function of a cell phone or navigation device Please note: In very old vehicles there may be space problems due to the larger cable cross-sections used in the conversion wiring harness. This is especially true in the area of the pipe channel for the taillight and in the steering head area. However, for safety reasons we do not want to use smaller cable cross-sections. Circuit diagram: See “Downloads” Available as a set with matching light switch for: Vespa Smallframe V50 Special Vespa Smallframe V50, 50N, PV125, ET3, Vespa Largeframe Sprint, Rally, TS, GT, GTR, GL, Super, GS160, SS180, VNA, VNB, VBA, VBB NOTE: A “normally open” type brake light switch is required.
