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Lambretta (Innocenti) LI 150 (series 2)

Lambretta (Innocenti) LI 150 (series 2)


Lambretta Li 150
Series 2

In October 1959 the Lambretta LI Series II was introduced. The advertising concentrated on the proverbial “Lambrettability” and the next great success for Innocenti was almost certain from the start. In fact the Series II with 270.000 scooters made, was the best selling Lambretta model so far. At the engine only a few details were changed, e.g. a slightly longer Cylinder with matching piston was used. All models now have the air intake under the rider's seat, which had already been introduced with the latest Series I models. The biggest difference however is the headlight, which had been moved to the headset. The LI 125 only has a front saddle as standard, whicle the LI 150 also features a rear saddle for the pillion. The additional rear saddle for the 125 was available as an option as well as the dual seat. Also the design of the floorboard shows the differences between the capacity- classes: while the LI 125 only had alloy struts, the 150 received alloy ribs with grey rubber strips and end caps. The rear lense was changed and increased in size during the production run. The rear lense gasket was still white and also most of the rubber parts stayed grey with the exception of the kickstart rubber and stand feet.

In January of the same year the TV 175 Series II had reached the shops, introduced as “the sportsman's scooter”. The main visual difference is again the new headset which incorporates the headlight. The TV 175 had the same alloy ribs with rubber inserts on the floorboard as the LI 150 and sported a dual seat as standard, while single seats were available as an option. The front forks with additional dampers were retained from the Series I, while the front brake drum and the forklinks were redesigned. The rear lease and the horncasting were changed during the production in the same way as the LI's, and also the rubber parts had the same colour scheme.

Production period:
Production code:
1st frame no.:
Li 150
150 cc


Li series 2 – 1st version
(June 1959 until mid 1960)

Small tail light (142 x 43 mm), round horn grille, air filter held by a nut, splashplate is held by eight 5mm bolts.


Li series 2 – 2nd version
(mid 1960 until January 1961)

Large tail light (130 x 58 mm), oval horn grille, air filter held by a nut, from October 1960 the splashplate is held by two 8mm bolts.

Li series 2 – 3rd version
(February 1961 until November 1961)

Air filter is held by a clip (as Series 3)


Original paint (Lechler)

Grigio Fiume
8014 (*1)
Grigio Chiaro
8019 (*2)
Azzurro Flaminia
8032 (*3)
Bleu Inghilterra
8031 (*3)
Verde Nilo
8015 (*3)
Rosso Rubino
8047 (*3)
Rosso Corallo
8046 (*3)

(*1) = single tone scheme
(*2) = two tone scheme, frame colour
(*3) = two tone scheme, side panel colour


Vehicle (general)
name: LI 150 (series 2)
year of manufacture: 1959, 1960, 1961
VIN: 150LI
no. of exemplars produced: 162040
colours: azzurro flaminia (8032), bleu inghilterra (8031), grigio albo (8019), rosso corallo (8046), rosso rubino (8047), verde nilo (8015)
Vehicle sizes
length: 1825 mm
width: 710 mm
height: 1060 mm
seat height: 785 mm
ground clearance: 165 mm
wheelbase: 1290 mm
petrol tank capacity: 8.5 l
tank reserve (petrol): 0.75 l
weight (dry): 105 kg
weight (kerb): 120 kg
weight (max): 258 kg
Vehicle wheels
front tyre: 3.50 - 10
rear tyre: 3.50 - 10
front wheel rim: 2.15 - 10
rear wheel rim: 2.15 - 10
Vehicle brakes
front brake type: drum brake
front brake operation: mechanical with cable
Ø front: 150 mm
rear brake type: drum brake
rear brake operation: mechanical with cable
Ø rear: 150 mm
Vehicle suspension
front suspension type: spring only, trailing link fork
rear suspension type: shock absorber
Vehicle engine
displacement: 148 cm³
stroke: 58 mm
bore: 57 mm
engine type: 2-stroke
number of cylinders: 1
type of cooling: air
power (kW): 4.91 kW
power (HP): 6.67
rpm (P max): 5200
compression ratio: 1:7
mixture preparation: carburettor
carburettor: Dell'Orto MA19 BS5
starter: kickstarter
clutch: manual
engine brand: Innocenti
max speed: 83.1 km/h
engine type: 2-stroke
emission standard: none
Vehicle engine - ignition
ignition type: point set ignition
advanced ignition: 23
points distance: 0.45 mm
power (light): 30 W
voltage: 6 V
spark plug: (NGK) B7ES
Vehicle engine - gearbox
gear change type: manual
no. of gears: 4
ratio primary - 1:: 3.0666
ratio speed 1 - 1:: 4.545
ratio speed 2 - 1:: 2.928
ratio speed 3 - 1:: 2.176
ratio speed 4 - 1:: 1.7
overall ratio - 1:: 5.2133
Fahrzeug Betriebsstoffe
fuel: Super (ROZ 95)
mix ratio: 1:50
gearbox oil: SAE80
gearbox oil capacity: 0.7 l
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