M and M Lambretta

Lambretta Model A (m)



Production Dates: October 1947 to October 1948
Serial Number Range:
 005001-014670
Quantity Produced: 9,669
Main Specs:
Overall Length:
 1620 mm / 64 in
Overall Height: 880 mm / 35 in
Overall Width:
 650 mm / 26 in
Weight (dry): ~55 kg  / 121.25 lbs
Gears: 3 speed - Foot controlled
Speed Max:
 ~70 kmh / 44 mph
Tire Size:
 3.50 x 7
Brakes:
 Drums Front & Rear w/steel brake shoes
Fuel Tank:
 6 liters / 1.32 gal -  0.8 liters / 0.18 gal reserve
Consumption:
 ~39 kpl / 110 mpg
Engine Specs:
Capacity (cc):
 123
Bore:
 52 mm
Stroke:
 58 mm
Compression:
 6:1
Max Output:
 4.3 bhp @ 4500 rpm
Cooling:
 Air
Carburettor:
Type:
 Dellorto MA 16 (MA 19 ex-factory)
Choke:
 16 mm  (or 19mm)
Slide:
 55
Needle:
 C9
Atomizer:
 260
Main Jet:
 65
Pilot Jet:
 45
Starter Jet:
  --
Float:
 7.5 grams
Air Screw Adj:
 1 turn
Service Info:
Spark Plug:
 Champion L7, L10S
NGK B7HS
Spark Plug Gap:
 0.015
Timing:
 26 degrees BTDC
Points Gap:
 0.40 - 0.50 mm
Engine Oil:
 SAE 15/50 180 grams
Transmission Oil:
 SAE 15/50 200 grams
Tire Pressure:
 Front 14 psi / Rear 22 psi
Fuel Mix:
 5% or 20:1
Paint Information:
Lechler Color Name
 Lechler Color Code
Verde Oliva Scuro /
Dark Olive Green		 8022
Rosso Scuro / Dark Red 8020
Bluette / Blue 8017


First Version:
All the same color, Dark Olive Green 8022 or Dark Red 8020 or Bluette 8017 or Ivory with the exception for the front seat frame which was flat black and the chrome wheels.

The engine case, carburetor body, air filter box and flywheel cover were painted Fiat Aluminum 690.

Second Version:
All the same color, Dark Olive Green 8022 or Dark Red 8020 or Bluette 8017 or Ivory with the exception for the front seat frame and wheels which were painted Fiat Aluminum 690.

The engine case, carburetor body, air filter box and flywheel cover were painted Fiat Aluminum 690.

Third Version:
All the same color, Dark Olive Green 8022 or Dark Red 8020 or Bluette 8017 or Ivory with the exception for the front seat frame, hubs, center stand and wheels which were painted Fiat Aluminum 690.

The engine case, carburetor body, air filter box and flywheel cover were painted Fiat Aluminum 690.
Model Notes:

 The model A was the first Lambretta to be manufactured for production at the Innocenti factory.

First Version until approx vin # 6,900
Rear seat is square, flat gear shift pedal, lockable toolbox, mechanical horn (operated with foot pedal), chrome wheels.

Second Version up until approx vin # 11,000
Triangular front seat, non-lockable toolbox, electric horn, painted wheels, inclined gear shift pedal (was flat up until approx vin # 8,000), rear brake pedal opposite gear shift pedal (only on the last 1,000 units of this second series)

Third Version up until vin # 14,700 (approx)
Larger rectangular front seat with only one horizontal spring, cast metal center stand.

Sources used for the above information:
1. Publication Section
2. Peter Davies - information reproduced with written permission
3. Paint colors - many various sources from the UK
4. Model notes - many various sources from the UK

Details pertaining to restoration broken down by VIN range, obtained from Casa Lambretta USA and reproduced with written permission.



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