Although Japanese manufacturer Suzuki designated the 2004 Suzuki JR as a motorcycle mainly suitable for younger bikers; it is also geared towards younger bikers using it for off-road driving. The 2004 Suzuki JR is split into two models: the JR 50 and JR 80.
Each 2004 Suzuki JR is powered by a two-stroke, air-cooled, single-cylinder engine, with a 49-cubic centimeter (cc) displacement on the JR 50 and 79-cc displacement on the JR 80. Each engine uses a reed intake valve train. The bore and stroke for the engine is 1.62 by 1.5 inches (41 by 38 millimeters) on the JR 50 and 1.93 by 1.65 inches (49 by 42 mm) on the JR 80. Similarly, the compression ratio differs according to model: 5.6 to 1 on the JR 50 and 6.8 to 1 on the JR 80.
The engine on each 2004 Suzuki JR is paired with a semi-automatic transmission: one-speed on the JR 50 and five-speed on the JR 80. Accompanying the JR 50 model of the Suzuki JR is a half-gallon (two-liter) tank for fuel. The one on the JR 80 holds more than twice that capacity.
A kick starter goes on each 2004 Suzuki JR for igniting the engine. For blending air and fuel for the engine, each bike uses a Mikuni carburetor: 12 mm on the JR 50 and 20 mm on the JR 80.
Available only with a Champion Yellow finish, the 2004 Suzuki JR is made with a steel frame. There’s the customary front and rear fenders--as well as a chain guard, and pads on the handlebars. Also included is a decal kit, which includes the Suzuki logo. Suzuki provides a kick stand for parking the bike, and the seat on the bike--adjustable on the JR 50, non-adjustable on the JR 80--is ideally designed for accommodating just one person: the driver. The JR 80 has fork guards flanking the wheels.
Each 2004 Suzuki has drum brakes for stopping power, and the suspension consists of a telescopic fork at the front and a twin-sided swing arm at the back. Each model of the JR uses aluminum wheels, although they differ in size; 10-inch wheels go on the JR 50 model, while a 14-inch front and 12-inch rear one go on the JR 80.
The physical dimensions of the 2004 Suzuki JR 50 model consist of a 50-inch length, 23.4-inch width, 28.7-inch height, and 33.9-inch wheelbase. Also, it weighs 84 pounds (38 kilograms). The JR 80 is a larger bike: 60.6 inches in length, 28.7 inches in width, and 36 inches in height, with a wheelbase of 41.3 inches and dry weight of 127 pounds (58 kg).
The 2004 Suzuki JR is not only a practical bike for inexperienced riders; it is also quite an attractive one. With moderate engine power, basic features, and an aerodynamic design and beautifying color finish, the 2004 Suzuki JR avoids skimping on the essentials.