The LI special gained the looks from the TV family of models, but retained the 125 and 150 engine size options from the LI, but with more power. The 125 Special is somtimes known or called SX 125. Technically it is not a SX125 as the frame numbers are always 125LI, and there is no X badge on the scooter, but as this ran along with the 150 and 200 SX models, some people do call them SX125.
Date of production Oct 1965~Jan 1969 – Sep 1963~Oct1966
Scooters produced 29.842 – 68.829
Capacity 125 cc – 150 cc
Bore x stroke 52×58 – 57×58 (mm))
Carburettor Dellorto SH 1/18
Gear 4 speeds Hand controlled
Power 7.12 hp at 5500 rpm – 8.25 hp at 5590 rpm
Speed max 75 – 85 (Km/h)
Tyre Size 3,50×10
Brakes Aluminium finned drums
Tank capacity 8 L Reserve 0.7 L
Consumption 38~48 Km/L
Weight 118 Kg
Overall length 1800 mm
Overall eight 1035 mm
Overall width 700 mm
Price 155.000 – 191.000 (Lire)
Identification details 150 S
Version I April 1965 Side-panel anti-vibration buffers all rubber (until mid-1964), buffers with metal spring (after mid-1964), single “Special” script on right side of leg-shield.
Version II Mayb 1965 – September 1965 Additional “Golden” or “Silver” script (according to the bodywork colour) above the leg-shield “Special” script.
Version III October 1965 – to end of production Chromed ring between handlebar and leg-shield eliminated, side-panel clasps without cog (from Jannuary ’66)>
Identification details 125 S
Version I October 1965 – early 1968 Front shield badge, painted metal glovebox, side-panel clasps without cog (from January ’66).
Version II early 1968 – late 1968 Rectangular front badge in aluminium, glovebox in grey plastic.
Version III – very last examples Side-panels without aluminium handles, different colour scheme, 8mm bolts with 19mm heads.
Frame numbers by year
LI 150 Special
1963: 200001 – 207952
1964: 207953 – 242975
1965: 242976 – 259281
1966: 259282 – 268829
LI 125 Special
1965: 850001 – 854197
1966: 854198 – 867376
1967: 867377 – 875819
1968: 875820 – 879830
1969: 879831 – 879846
Colour schemes 125 S – 150 S
Body colour parts Fork, frame, leg-shield, handlebar and headset, rear mudguard, floorboard tunnel, wheel hubs, front brake shoe backing plate, wheel rims, spare wheel holder, glovebox lid, taillight body, fuel tap hatch, stand,stand mudguard, right-hand rear floorboard L-bracket, side-panels, front cowling, horn grille, front mudguard.
New White Fuel tank, rear mudguard, cylinder head air intake manifold (2 pieces), air box, filter carrier and air intake beneath saddle, fuel tank support strap, glovebox (when in metal).
Colour schemes 125 S – very last examples
White Thorn body parts Frame, leg-shield, handlebar and headset, floorboard tunnel, glovebox lid, tail-light body, right-hand rear floorboard L-bracket, air intake beneath saddle, side-panels front cowling, horn grille, front mudguard, rear mudguard, cylinder head air intake manifold (2 pieces), air box, filter carrier and air intake beneath saddle, fuel tank support strap, fork, stand, stand mudguard.
Carter aluminium 8081 Fork, wheel hubs, front brake shoe backing plate, wheel rims, spare wheel holder, stand, stand mudguard. The plastic glovebiox remained grey.
Finishes 125 S – 150 S
Black finish Rear damper, saddle frame and catch.
Crankcase Bare aluminium.
Carburettor Carburettor body and float chamber cover bare aluminium, zinc-plated screws and fittings.
Control cable sheaths Grey.
Saddles 125 S: dark blue imitation leather with “Innocenti” or “Giuliari” rear script.
150 S Silver: black imitation leather with “Innocenti” or “Giuliari” rear script.
150 S Golden: green imitation leather with “Innocenti” or “Giuliari” script.
Silencer Aluminium silver.
Frame Brake pedal, frame tube cable circlip, all leg-shield scripts, ring beneath steeringhead, threaded kick-start lever bush.
Electrical parts Headlamp bezel, right-hand light switch screws and cover, ignition barrel bezel.
Engine Kick-start lever.
Front fork Screws and pins, lower steering head bearing dust cap, wheel carriers.
Frame All screws and bolts, special washers, bushes. Side-panel internal catches.
Engine Levers, studs, nuts, lubricators, oil caps.
wheels Plain and cap nuts, bushes, wheel hub brake levers.
Engine Air filter pipe fixing spring.
Frame Stand spring, brake pedal spring, plates and shaped bars for side-panel catches.
Frame Fuel tap and choke levers, floorboard runners and ferrules, leg shield profile terminals, handlebar levers and lever carriers, rear badge mount side-panel levers, trim and “Lambretta” scripts, glovebox lock lever.
Electrical parts Handlebar light switch cover.
Lechler system colours
Metallic Blue 8061
White Thorn 8082 (last examples only)
New White 8059 (internal bodywork parts only)
Carter aluminium (wheels) 8081 (last examples only)
Metallic Grey 8060 “Silver”
Light Metallic Gold 8063 “Golden”
New White 8059 (internal bodywork parts only)
Fuel/oil mixture 2%
Spark plug Bosch 225/240 long thread
Engine oil SAE 90, 600cc
Carburettor (125 S) Dell’Orto SH 1/18
max jet 107, min 45 Valve 1
Carburettor (150 S) Dell’Orto SH 1/18
max jet 107, min 48 Valve 1
Ignition advance 22°-24° 32-33 mm on flywheel circumference