2024 Author: Erin Ralphs | [email protected]. Last modified: 2024-02-19 11:42
1948 is a significant year for all lovers of two-wheeled vehicles. Indeed, this year, Java began manufacturing its first motorcycle. It had a two-stroke engine with a cylinder displacement of 350 cm3. This model has been improved over time, but has not received global changes.
This strategy has resulted in the 350 model (type 638, 5) being similar to its forty-year-old predecessor in only a few details. Java 638 was developed on the basis of type 634, which entered service in 1974.
Most of all, the design has changed in it. The Java 638 has a new tank, shrouds and saddle that make the bike look more attractive. The fuel tank at the same time took an angular shape. On previous models, the inscription was almost invisible. Now it is a diagonally located and catchy emblem that can be seen from afar. Both sides of the tank have comfortable knee bands that fit into the shape of the saddle and feature a lip.
The Java engine has cylinders made of light metal and cast iron liners. The volume of the combustion chamber remained unchanged - 343.47 cm3, with a diameter and piston stroke, respectively, 58/65 mm.
Java 638 hasthe compression ratio is 10.2:1 and the engine power is 25.8 hp, which is quite good for those years. The diameter of the diffuser hole for the carburetor is 28mm.
It is also structurally improved with a concentrator, which was an innovation for that time.
Therefore, gasoline-stained gloves are a thing of the past, which describes in a good way a motorcycle like the Java 638, whose specifications are so high.
Gasoline for such an "iron horse" is diluted with oil in a ratio of 1:40. Electrical equipment is installed, designed for a voltage of 12 V, which has a positive effect on road illumination at night.
The Java 638 motorcycle has a gearbox with needle bearings and a clutch basket equipped with 5 pressure springs.
City driving in Java is easy. The comfort level of such a motorcycle is quite high even for its class. After all, a stiff saddle does not bring any problems during a long trip. Java 638 behaves well on the road. It is stable even off-road. This is achieved by the good properties of the front fork, which is rigid and able to compensate for even significant road irregularities.
Rear adjustable shock absorbers make it possible to load the motorcycle even on rough roads. The dimensions of this vehicle are such that it is ideal for two people. Significantly pleased with such a machine is the presence of a tachometer, with which you canaccurately determine engine speed.
Although the saddle in Java is removed quite simply, but it must be installed carefully. After all, you can easily scratch the casing. It's nice that the bike has a fully enclosed chain. This not only protects the latter from dust, but also protects against the consequences of its rupture.
In general, the Java motorcycle is not only a reliable car, but also a prestigious one even for our time. Indeed, for the cost of a used “old woman” you will no longer buy anything suitable in quality. Therefore, it is worth taking a closer look at this option, and not buying a new, low-quality motorcycle.
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