MBK Booster

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MBK Booster
Also called Booster 12 inch, Booster NG Next Generation, Booster 12inch N, Booster 12inch, Booster NG, Booster 12-inch Naked, Booster 12-inch, Booster Naked, Booster 50, Booster X, Booster 13-inch Naked, Booster Spirit 50
Production 1988 - 2012
Class Scooter
single cylinder, two-stroke
Bore / Stroke 40.0mm x 70.0mm
Compression ratio 7.2:1
Horsepower 3.22 HP (2.4 KW) @ 6500RPM
Torque 2.66 ft/lbs (3.6 Nm) @ 6000RPM
Fuel System carburetor
Ignition cdi
Transmission Gear box: automatic

Final Drive: belt

Clutch: automatic centrifugal
Suspension Front: telescopic fork
Rear: unit swing
Brakes Front: single disc
Rear: expanding brake (drum brake)
Front Tire 120/70-13
Rear Tire 130/70-13
Wheelbase 46.14 inches (1172 mm)
Length 66.34 inches (1685 mm)
Width 26.57 inches (675 mm)
Height 41.3 inches (1049 mm)
Seat Height 30.24 inches (768 mm)
Weight 165.35 pounds (75.0 Kg) (dry), 82.0 kg (wet)
Oil Capacity 0.32 Gallon (1.20 Liters)
Fuel Capacity 1.4 Gallon (5.30 Liters)
Manuals Service Manual

The MBK Booster 13-inch Naked was a single cylinder, two-stroke scooter produced by MBK between 1988 and 2012. Max torque was 2.66 ft/lbs (3.6 Nm) @ 6000 RPM. Claimed horsepower was 3.22 HP (2.4 KW) @ 6500 RPM.


The engine was a air cooled single cylinder, two-stroke. A 40.0mm bore x 70.0mm stroke result in a displacement of just 49.2 cubic centimeters. Fuel was supplied via a single overhead cams (sohc).


The bike has a automatic transmission. Power was moderated via the automatic centrifugal.


It came with a 120/70-13 front tire and a 130/70-13 rear tire. Stopping was achieved via single disc in the front and a expanding brake (drum brake) in the rear. The front suspension was a telescopic fork while the rear was equipped with a unit swing. The Booster 13-inch Naked was fitted with a 1.4 Gallon (5.30 Liters) fuel tank. The bike weighed just 165.35 pounds (75.0 Kg). The wheelbase was 46.14 inches (1172 mm) long.

1988 - 1994 MBK Booster[edit]

1988 - 1994 MBK Booster 1988 - 1994 MBK Booster 1988 - 1994 MBK Booster

In 1986 the know-how acquired in the manufacture of two wheels allows MBK to join the group Yamaha Motors Group. In 1988 the historic Booster born.