Features of the technology
As an engine runs its temperature rises, but if the temperature reaches too high a level it affects the ability of the engine to deliver its full power. That is why a cooling system is necessary to ensure stable power output from an engine. There are two types of cooling systems for engines, the air-cooling system that uses air to cool the engine and the liquid-cooling system in which liquid is circulated through a system of passages around the engine called a water jacket. The liquid-cooling system is a familiar part of almost all automobile engines, but because of the extra weight it adds to the power unit, this system has seldom been used on motorcycles of the 100~150 cc class.
To ensure stable power output from the T135's high-performance engine, and to accommodate all kinds of use conditions, a liquid-cooling system has been adopted. At the same time, components like the radiator and water passages have been designed for optimum compactness and the body design utilized to make optimum use of air flow to cool the radiator so that it was still possible to achieve a lightweight, compact body.
Effect (User Benefits)
(1) More stable power output in extended high-speed use or in hill climbing - The combined effects of optimum layout of the water jacket and optimized design of the area around the radiator create cooling performance that ensures stable power output in high-speed running and on uphills.
(2) Low noise level that adds to the feeling of quality - Since the engine is surrounded by the cooling system water jacket, the coolant absorbs mechanical noise from the piston and valves and reduces vibration. This low vibration is another factor contributing to the quality feeling of the T135's ride.
