The milestone of 250cc single
In the history of Kawasaki, there have not been many "on-road, four-stroke, single-cylinder" models. Examples include the Kawasaki 250 Meglot SGT (1964), Z200 (1977), and Z250FS (1982). However, even in this category, there are some masterpieces that boast a high level of perfection, and the 250CS (Casual Sport), which appeared in 1985, can be said to be the pinnacle of such models.
The appeal of this motorcycle is its specifications. The CS's engine is based on the KL250R off-road engine released the previous year, with a larger diameter carburetor (φ34 → φ36 mm) for increased power. The engine produces a maximum output of 34ps at 10,000 rpm, which is equal to or better than that of a 2-cylinder engine in the same class. The fact that no other on-road vehicle not used for racing has yet to produce a 250cc single-cylinder engine that exceeds these specifications is a testament to the engine's superiority. Single-cradle or semi-double-cradle frames are commonly used for single-cylinder engines, but the CS uses a double cradle to hold its power. Despite the casual "casual sport" name, the CS was a machine with aggressive dynamic performance.
From then on, 250cc single-cylinder road models shifted to retro models such as the Estrella.
As the emphasis shifted to ride feel and pulse rather than power, the CS's maximum output of 34ps was truly a milestone. The CS is a hidden gem that is not well known despite its reputation as the strongest 250cc single-seater.
→Read the full story **JP Website
Original Source. [ Kawasaki first ]