A great addon for all two stroke carburetors running either on gas or alcohol fuels.

The kit consists of :
one externally adjustable powerjet,
two brass barbs (one for the power jet and another one for the carb bowl)
and a top quality purple silicon hose.

To fit the kit, you are going to need a 4mm drill and a M5x0.8mm tap.

This type of power jet is externally adjustable, meaning that you do not have to strip the carb to adjust for different fuel requirements. Turning the knob clockwise-anticlockwise will lean or richen the mixture respectively. Each 1/4 of a turn equals one step in the size of a regular main jet with all the increments in between.”

Useful info about the History of the Lambretta

In 1922, Ferdinando Innocenti of Pescia built a steel-tubing factory in Rome. In 1931, he took the business to Milan where he built an even better factory producing seamless steel tubing and employing about 6,000. Throughout the Second World War, the factory was heavily bombed and destroyed. It is said that surveying the ruins, Innocenti saw the future of cheap, private transport and chose to develop a motor scooter – competing on cost and weather protection against the ubiquitous motorcycle.

Concept
The principal stimulus for the design style of the Lambretta and Vespa goes back to Pre-WWII Cushman scooters manufactured in Nebraska, USA. These olive green scooters were in Italy in large numbers, ordered originally by Washington as field transport for the Paratroops and Marines. The Us military had used these to Nazi defence tactics of destroying roads and bridges throughout the Dolomites (an area of the Alps) plus the Austrian border areas.

Aeronautical engineer General Corradino D’Ascanio, in charge of and construction of the first modern helicopter by Agusta, was given the job by Ferdinando Innocenti of designing a simple, robust and affordable vehicle. It had to be simple to drive for women and men , be able to carry a passenger and still not get its driver’s clothes soiled.

The style and design
D’Ascanio, who hated motorbikes, created a revolutionary vehicle. It was built on a spar frame employing a handlebar gear change also , the engine mounted directly onto the rear wheel. The front protection “shield” kept the rider dry and clean in comparison with the open front-end on motorcycles. The pass-through leg area design was intended for women, as wearing dresses or skirts made riding conventional motorcycles difficult. The front fork, just like an aircraft’s landing gear, allowed for simple wheel changing. The inner mesh transmission eliminated the common motorcycle chain, an origin of oil and dirt. This basic design allowed several features getting deployed relating to the frame which could later allow quick growth and development of new models.

However, General D’Ascanio fell out with Innocenti, who rather than a moulded and beaten spar frame preferred to produce his frame from rolled tubing, allowing him to bring back both sections of his prewar company. General D’Ascanio disassociated himself with Innocenti and took his design to Enrico Piaggio who produced the spar-framed Vespa from 1946 on.

Into production
Going on a year longer to create, the 1947 Lambretta featured a rear pillion seat for a passenger or optionally a storage compartment. Original front protection “shield” was a flat piece of aero metal; later this developed into a twin skin to enable additional storage at the ‘back of’/behind the leading shield, the same as the glove compartment in a car. The fuel cap was under the (hinged) seat which saved the cost associated with an additional lock for the fuel cap or requirement for additional metal work on the smooth skin.

Deriving the name Lambretta from the small river Lambro in Milan, which ran near to the factory, Innocenti started producing the Lambretta scooters in 1947 – one year afterwards Piaggio started manufacture of its Vespa models. Lambrettas were manufactured under licence in Argentina, Brazil, Chile, Colombia, India and Spain, sometimes under other names but always to a recognizable design (e.g. Siambretta in South America and Serveta in Spain).

BLMC closure of Innocenti
As wealth increased in Western Europe in the late 1960s, the need for motor scooters fell because the small car became available for more people and Lambretta started to struggle financially as did parent Innocenti. The British Leyland Motor Corporation took advantage of Innocenti’s financial hardships and also their production and engineering expertise and contracted Innocenti to manufacture cars under licence from BLMC. The Innocenti Mini used the mechanical elements of the initial but was in many different ways superior to it.

Innocenti/Lambretta was eventually sold to BLMC. Unfortunately, deficiency of foresight had caused BLMC to join a fashion trend which was ending rapidly. Long industrial strikes in BLMC ensued; motor-scooter sales took a nosedive, and both Innocenti and Lambretta shut up shop in 1972.

Lambretta Mikuni B38-32

India
Automobile Products of India / Scooters India Ltd Industry Scooter
Founded 1972
Headquarters Bombay / Lucknow, India
Products Lambretta, Lamby, Vijay, Vikram, Lambro
Website Scooters India

The Indian government bought the factory for basically the same reasons that Ferdinando Innocenti had built it right after the War. India was a country with poor infrastructure, economically not ready for small private cars yet with a need for private transport.

Automobile Products of India (API) began assembling Innocenti-built Lambretta scooters in India after independence during the 1950s. They eventually acquired a licence to produce the Li150 Series 2 model, that was sold under the Lambretta Series 2 name until about 1976 and at a later point changed the name to Lamby for legal reasons as Scooter India Ltd acquired the complete Innocenti Unit in 1972. API also built the trademark model [API-175] 3 wheeler which was based upon Innocenti’s Lambro. API continued to build Lambretta-derived models until the 1980s but have been non-operational since 2002.

In 1972, Scooters India Ltd. (SIL) a state-run enterprise situated in Lucknow, Uttar Pradesh, bought the entire Lambretta manufacturing and trademark rights. Former Innocenti employees were utilised to set up an Indian factory as all the manuals and machinery instructions were in Italian. The first scooter built was the Vijay Delux/DL, which was badged the Lambretta GP150 in export markets. This sold poorly due to build problems and was enhanced to become the Vijay Super. Further improvements were manufactured in the final years of production by incorporating a contemporary Japanese CDI unit and a sophisticated front suspension. SIL also distributed CKDs which were assembled in various parts of India and sold as the Allwyn Pusphak, Falcon, and Kesri. They were of a lower quality than the SIL produced models and sometimes incorporated significant styling changes.

SIL production seems to have peaked in the financial year 1980-1981, with around 35,000 scooters being built. However by 1987 this had dropped to around 4,500 units with production finally ceasing in 1997. As of 2010 S.I.L.’s production now centres on the Vikram 3-wheeler, powered by the Lambretta engine. SIL also produces limited spares for the GP/DL range of scooters. [8] [9] There’s also an established export trade in second-hand Lambrettas (and their derivatives), primarily to the UK market.

Today
In the United States Of America, Scooters India Ltd licensed the Khurana Group USA LLC to manufacture and distribute scooters with the Lambretta brand. The initial release in 2008 were rebadged Adly models [10] of contemporary design, including a 49 cc DUE50, a 49 cc UNO50 together with a 150 cc UNO150.

There are still clubs across Europe and also the UK, both national and local clubs, devoted to the Lambretta scooter. The clubs still participate and organize ride outs and rallies which regularly take place during weekends over the summer season and get high attendance, some rallies achieve 2,500 paying rally goers. All over the UK there’s lots of privately owned scooter shops which deal with everything Lambretta, from sales, services, parts, tuning, performance as well as nut and bolt restorations.

(Artical taken from wiki and spun)

Adjustable Power Jet