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Cable harness BGM ORIGINAL suitable for all Vespa PX models up to year of construction 1982

Convert Vespa PX battery to electrics without battery - Conversion wiring harness bgm Vespa PX

Convert your old Vespa PX with battery now easily

A modern electrical system without battery on your scooter does not destroy the appearance, it is on invisible and economical increase in safety and comfortbecause

  • Without a battery, there is no need to purchase / replace and maintain the battery
  • Your electrical system and all consumers function independently of the battery's condition or charge level
  • You efficiently prevent corrosion damage to your Vespa PX caused by an overcooked battery / battery acid
  • Significantly more safety due to increased light output = increased visibility = better being seen & and better seeing
Wiring harnessBGM6685KT_15Wiring harnessBGM6685KT_15
Wiring harness BGM6685KTWiring harness BGM6685KT
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Wiring harnessBGM6685KT_4Wiring harnessBGM6685KT_4
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Wiring harnessBGM6685KT_14Wiring harnessBGM6685KT_14

Conversion wiring harness for all Vespa PX models until 1982

This wiring harness is perfect to convert your Vespa PX, which has a battery from the Piaggio factory, to a modern and maintenance free on-board electrical system no battery. For this purpose, we offer an inexpensive and practical set with all the necessary new switches and ignition lock(BGM6685KT). Wiring harness in set with switches

Additionally, for a replacement / restoration, this is the PX wiring harness in the Italian version for models without battery. On this model, the turn signals, the horn (so-called “snare”) and all other consumers are supplied with power directly via the on-board AC system. The ignition base plate used on these vehicles has only 3 cables (contact ignition models) or 5 cables (vehicles with electronic ignition). Wiring harness single without switch

Vehicle models:

Vespa PX battery-free: Conversion without battery

For the conversion of your scooter to the modern electrical system, you need the following parts and save the battery, the wintering and the care / maintenance of the vehicle battery in the future

  • VOLTAGE REGULATOR In general, the simple 3-pole voltage regulator (G | G | M) is used with this wiring harness (eg 9100001). The 5-pole voltage regulator (A | A | B + | G | M) originally used on vehicles delivered from the factory with battery can still be used. Only the connections B + and G remain unassigned (formerly charging current for the battery). A better alternative is the compact and powerful BGM Pro voltage regulator(BGM6690). This can, for example, also supply a USB socket with 12V DC voltage for charging the mobile phone / navi, etc.
  • IGNITION / IGNITION BASE PLATE / LIMA The type with 5 cables is used as ignition base plate (also recognizable by the blue and black cable for the single voltage supply). The original 7-cable Lima of the models with battery can no longer be used. However, due to their age, these often show damage to the cable insulation anyway. Conversion to the more powerful ignition base plate of the later Lusso models (eg BGM8025N or BGM8032N) is therefore highly recommended. This increases the total light output of the AC network considerably, as no more current is diverted for battery charging. Thus, even old PX models can be equipped with a 35 / 35W lamp. Most alternators with 5 cables have a round plug. The wiring harness offered here has (as in the original Italian) 6.3mm flat plugs. Here, either the wiring harness can be converted to a round plug or the ignition base plate can be converted to a flat plug. The necessary parts can be found in the accessories.
  • BLINKING RELAY The models with battery use a DC (direct current) flasher relay. After conversion, an AC (alternating current) flasher relay is required (eg 1195703).
  • INSTRUCTIONS / WIRING DIAGRAM The following instructions / wiring diagramwill help you to connect the cables .

Checklist: Spare parts / parts that are connected to the wiring harness

To make sure everything works, you should go through this list and check if your old parts are still OK. If not, you can order them directly from our Vespa Shop via the link:

* 9512115? 9520072 + 9520074 / ** 9512027? 7675200 + 7675201

CONCLUSION: Absolutely sensitive conversion to modern, more powerful and maintenance-free electrics

Tutorial Installation Wiring Harness Video Instructions

This is a PX-Lusso wiring harness, it has different connections, so don't get confused. However, the basic principle of the wiring harness is the same and this video tutorial may help you to install and connect the wiring harness in the body of your Vespa.

Tutorial SC - Vespa PX Lusso wiring harness Instructions assembly Installation Vespa wiring harness

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Vespa ignition retrofit electronic ignition

Vespa conversion from contact ignition to electronic ignition

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Vespa Largeframe conversion to electronic ignition

Vespa engines of the large frame models with rotary vane intake control, eg Vespa VNA, VNB, VBA, VBB, VLA, GT, GTR, Sprint, Rally, PX, LML 2T, Bajaj Chetak can now be easily converted:

BGM8032NBGM8032N
BGM8032N-zubo1X1nWb38iGivpiBGM8032N-zubo1X1nWb38iGivpi
BGM8032N-10-Not retouchedBGM8032N-10-Not retouched
BGM8032N-14aBGM8032N-14a
BGM8032N-4BGM8032N-4
BGM8032N-3BGM8032N-3
BGM8032N-2BGM8032N-2
BGM8032N-1BGM8032N-1

Why should I convert a Vespa to electronic ignition?

These are the advantages of an electronic ignition!

After the conversion, the former weak 6Volt on-board power supply has a powerful 12 volt light output. The previously self-regulating electrical system is converted to a Reliable and bulb-friendly regulator control (eg with BGM6690). The high-quality wiring ensures a safe transmission of the high light and ignition power. With its strong wattage, it already provides a very good light output when idling, which does not collapse even when using the indicators or additional power consumers. No maintenance necessary! Maintenance work, as usual with contact ignition, is not necessary.

Our new bgm ignition: specially developed for the conversion of contact controlled engines to a maintenance free electronic ignition:

The latest version of the proven bgm PRO HP (High Power) ignition base plate for conversion from contact ignition to electronic ignition.
Suitable for eg Vespa Largeframe like VNA, VNB, VBA, VBB, GL, Super, Sprint, GT, GTR, TS, Rally

buy ignition now here

bgm PRO ignition base plate

With our own brand bgm, we have revised and improved the thousandfold proven bgm PRO ignition base plate. Special attention was paid to a very high quality of the coils and the pickup.
In addition, the cabling was changed to textile-sheathed silicone cables. A special gimmick is the cord already attached to the cable branch for easy pulling the cable harness through the cable channel in the engine housing. Also the base plate now has a degree of exact scaling for easy adjustment.

Compared to a conventional electronic ignition, the BGM Pro HP V2.5 ignition base plate has specially combined coil windings.
Through this the efficiency of the alternator is again clearly improved and offers with 120W a high light output.

In contrast to a Vespa PX ignition base plate, the BGM Pro HP has a longer and differently laid cable load in order to be able to mount the ignition base plate perfectly on older vehicles. Additionally it has an adapted base plate contour to fit perfectly on engines before 1977 (with a larger shaft seal seat than PX).

  • High light output (120W) through maximum number of windings
  • Proven excitation coil with copper plate for highest reliability
  • Pickup with carbon barrier layer for a clean ignition pulse
  • Cleanly processed light coils
  • High quality solder joints
  • Original cable lugs and length for very easy cabling
  • Can be combined with additional modules (PiFi, Kytronic, Agusto)

NOTES: The BGM pickup has a nominal resistance of 100 Ohm (+/- 10Ohm)

Silicone lines

ADVANTAGES OF SILICONE CABLES

  • Extremely temperature resistant (-40 ° C to + 250 ° C)
  • Always stays flexible
  • Very good mechanical protection by the textile fabric
  • Resistant to fats, oils, alcohols, oxygen, ozone
  • Very high insulation properties

CONVERSION TO ELECTRONIC IGNITION

When converting from a contact ignition to this base plate, the use of a different fan wheel, a voltage regulator and a CDI is necessary.
A standard old voltage regulator, like the standard ignition coil, is no longer needed.
With the BGM voltage regulator BGM6690 an optional battery (12Volt battery required) can be charged while driving. The old wiring harness can still be used, however, the formerly individual circuits must be combined here, since the voltage regulator only provides one output for the complete power supply. It is easier to convert to one of our conversion wiring harnesses (eg 9077011).

Everything necessary for this is available individually or as a set.

Suitable for Vespa OldieLargeframe

The BGM ignition base plate fits all Vespa engines of the large frame models with rotary vane intake control, eg Vespa VNA, VNB, VBA, VBB, VLA, GT, GTR, Sprint, Rally, PX, LML 2T, Bajaj Chetak.

buy ignition now here

Conversion set

Besides the ignition you also need some other parts to convert the engine from contact ignition to electronic ignition. We have put together a practical set for you here: BGM6661PRO

All parts are also available separately:

 

PLEASE NOTES
The alignment of the crankshaft in the engine case, and thus also the position of the pole wheel, is much more variable in the old largeframe engines (recognizable by crankshaft bearings of the same size with 25x62x12mm) than, for example, in the later PX engines.

The crankshaft bearings are not fixed in the engine housing by a snap ring, but are only fitted with a light press fit in the housing. Due to various tolerances (eg the width of the shaft sealing rings, worn bearing seats, orientation of the cone on the crankshaft) there may be significant deviations from the originally intended positioning of the shaft in the crankcase. Prerequisite for a correctly working ignition is a perfect alignment of the pole wheel with the ignition base plate. Otherwise the trigger surface in the pole wheel will not run parallel to the pickup, which can lead to misfiring. If the ignition does not produce a spark, the fault is usually to be found here. For easy repair we offer distance plates (BGM8000S05) for the pickup on the ignition base plate. With these distance plates the correct distance can be restored in a simple way.

 

The bgm PRO Conversion ignition fits the following models:

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