Yamaha Zuma

2002-2005, 2008-2009 Zuma

Manufacturer	Yamaha
Also called	BWs, MBK Booster
Production	2002-2005, 2008-2009[clarification needed]
Class	Scooter
Engine	Horizontal Minarelli 49 cc air-cooled, carbureted 2-stroke, electronic ignition Bore x stroke: 40.0 mm x 39.2 mm Compression ratio: 7.0:1
Top speed	42 mph (68 km/h)
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 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.

Model information

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 low-profile 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 through 1998 had front drum brake.)

Under the Zuma's dual seat is a modest storage compartment, and the rear cargo rack has a silver powdercoat finish and has extensions that double as passenger grabrails. Bug-eyed dual headlights mounted atop the fairing for improved visibility; the headlights have a single low beam and high beam (although many users install an inexpensive wiring modification to make both headlamps light with both the high and low beams). The instrument panel has turn signal, high beam and a low-oil indicator light.

The Zuma can 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. In order to comply with Environmental Protection Agency regulations, the 2008 model has a restricted throttle and a catalytic converter, limiting it to a top speed of 30 mph (48 km/h), compared with around 35 mph (56 km/h) for the 2005 and earlier models).

Fuel Economy

The United States Environmental Protection Agency mileage estimates for the Zuma are up to 123 mpg_-US (1.91 L/100 km; 148 mpg_-imp), depending upon how it is ridden, maintenance, road conditions, cargo, and driver/passenger weight.^[1]

1989-2001 Zuma

Production	1989-2001
Engine	Vertical Minarelli 49 cc air-cooled, carbureted 2-stroke, electronic ignition Bore x stroke: 40.0 mm x 39.2 mm Compression ratio: 7.0:1
Top speed	40 mph (64 km/h)
Transmission	V-belt automatic
Suspension	Front: Telescopic fork Rear: Single shock
Brakes	Front: 155mm disc;drum on earlier models Rear: drum
Tires	Front: 125/90-10 Rear 125/90-10
Wheelbase	50.2 in (1,275 mm)
Dimensions	L 68.3 in (1,735 mm) W 24.8 in (630 mm) H 41.5 in (1,054 mm)
Seat height	29.3 in (744 mm)
Weight	159 lb (72 kg) (dry)
Fuel capacity	1.1 US gallons (4.2 l)

References

1. ^ ^{a b} Yamaha Motor Corporation USA (2009), 2010 Yamaha Zuma Features & Benefits, model features:, http://www.yamaha-motor.com/sport/products/modelfeatures/151/0/features.aspx 
2. ^ BWs 50 model information, Yamaha (Canada), http://www.yamaha-motor.ca/products/products.php?model=3255, retrieved 2011-06-11