Two-stroke engines, the most popular in the world of karting, are designed to work within a limited temperature range to offer the best performance. Values which for water-cooled 125cc engines are usually around 50 degrees, depending on the model. If the operating temperature exceeds 56 degrees, there will be a sudden drop in power until, in the most serious situations, it breaks down.
It is important to have a cooling system in good working condition, although this may not be sufficient in the summer with high atmospheric temperatures. Let us then find out together the different accessories which we can install to further lower the temperature of the cooling fluid when the normal radiator we usually use is no longer enough, and when the special “extra cooling” radiators are not sufficient to keep the engine’s operating temperature within the parameters indicated by the engine’s manufacturer.