The Yamaha Razz is an entry-level, single-speed, 50-cc scooter that was manufactured from 1987 to 2001. In the United States, it is known as the Yamaha Riva Razz. It was the lightest scooter available after 1987. In 2001 it was replaced with Yamaha's Zuma and Vino line of scooters.
Dimensions
The Yamaha Razz has a length of 60.6 inches, a width of 24.4 inches, a height of 38.6 inches and a wheelbase of 43.1 inches. The seat height adjusted to its minimum level is 27.8 inches and its ground clearance is 4.3 inches. It has a total dry weight of 115 lbs., which does not include a maximized fuel capacity of 1.2 gallons. The turning radius is 63 inches. From 1996 to 2001, the scooter's bodywork was available in dark violet or deep red.
Engine and Transmission
The Yamaha Razz has a two-stroke, air-cooled, gasoline-torque induction engine with a compression ratio of 6.3:1 and a bore and stroke of 1.57 and 1.54 inches respectively. The engine is started by both a kick start and electric combination fueled by a 4AH, 12-V battery. Fuel is delivered using a 12-mm Teikei carburetor. The scooter is equipped with a single-speed automatic transmission. A new Yamaha Razz in 2001 had a top speed of 35 mph and an average fuel consumption of 100 miles per gallon.
Chassis
According to the Yamaha Razz service manual, the steel-tube, under-bone chassis is fitted with a telescopic-fork front suspension with 1.6 inches of travel. The rear suspension is fitted with single shock with 2.2 inches of travel. Drum brakes are fitted in both front and rear, which measure 3.15 inches in the front and 3.74 inches in the rear. The brakes are capable of a wear limit of 3.17 and 3.76 inches in the front and rear respectively. The scooter is fitted with 2.50-10 tires.