Global InformationYamaha Zuma information
 | This article relies excessively on references to primary sources. (June 2011) |
 | |
| Manufacturer | Yamaha |
|---|---|
| Also called | BWs, MBK Booster |
| Production | 1988-2011 |
| Class | Scooter |
| Engine | Horizontal Minarelli 49 cc air-cooledtwo-stroke, electronic ignition Bore x stroke: 40.0 mm x 39.2 mm Compression ratio: 7.0:1 |
| Power | 1.9hp |
| Transmission | V-belt automatic |
| Suspension | Front: Telescopic fork Rear: Single shock |
| Brakes | Front: 115mm disc Rear: drum |
| Tires | Front: 120/90-10 Rear 130/90-10 |
| Wheelbase | 50.2 in (1,275 mm) |
| Dimensions | L: 74.4 in (1,890 mm) W: 27.8 in (706 mm) H: 43.7 in (1,110 mm) |
| Seat height | 30.1 in (765 mm) |
| Fuel capacity | 1.5 US gallons (5.7 L) |
| Fuel consumption | 123 mpg‑US (1.91 L/100 km)[1] |
| Related | Yamaha Zuma 125 |
The Yamaha Zuma is an air-cooled 49 cc two-stroke scooter made by Yamaha Motor Company. It is also marketed as the Yamaha BWs,[2] and the MBK Booster.
The Zuma has a 14 mm Teikei carburetor with automatic choke, reed-valve induction, a fan-assisted cooling system, an autolube oil-injection system with an indicator light located on instrument panel which alerts rider when oil level gets low, and electric starting with backup kick start.
It also has five spoke-cast wheels with 120/90-10 front and 130/90-10 rear tires. The front fork has 2.6 inches (66 mm) of travel, and rear shock has 2.4 inches (61 mm) of travel. The scooter also has 155 mm hydraulic front disc brakes and rear drum brakes. (Models until 1998 had front drum brake instead of a hydraulic one.)
The dual seat contains a storage compartment adequate for a single full-face helmet. The rear cargo rack can be used for additional carrying capacity but requires the use of ropes or bungee cords to secure any load. This rack can also function as passenger grabrails. Post-2001 Zumas have "bug-eyed" dual headlights that come with one light wired to low beam and the other wired to high beam (both lamps have filaments for high and low beam functions, however, and many users install an inexpensive and simple wiring modification to make both headlamps light with both the high and low beams). The instrument panel has turn signal indicators, a high beam indicator, a low-oil indicator, a speedometer, a gas level gauge, and an odometer.
Yamaha specifies that the Zuma can safely carry up to 315 lb (143 kg) of passengers and cargo. Yamaha took the Zuma off the market in the U.S. in 2006 and 2007, and then reintroduced the model in 2008–2011. The models from 2008–2011 have a slightly higher gear ratio that helps compensate (at the expense of a little less power on take-off).
In 2011 Yamaha introduced the Zuma 125, followed in 2012 by the Zuma 50f (which replaced the 2-stroke version), both 4-stroke fuel-injected models.
- ^ Yamaha Motor Corporation USA (2009), 2010 Yamaha Zuma Features & Benefits, model features
- ^ BWs 50 model information, Yamaha (Canada), retrieved 2011-06-11