12. COOLING SYSTEM Downtown 125 i COOLANT REPLACEMENT PREPARATION The effectiveness of coolant decreases with the accumulation of rest or if there is a change in the mixing proportion during usage. Therefore, for best performance change the coolant regularly as specified in he maintenance schedule. Mix only distilled, low mineral water with the antifreeze. Recommended mixture: 1:1 (Distilled water and antifreeze) REPLACEMENT/AIR BLEEDING Remove the front cover (refer to the "FRAME COVERS REMOVAL/INSTALLATION" section in the chapter 2). When filling the system or reserve tank with coolant (checking the coolant level), place the scooter in a vertical position on a flat, level surface. (1) Remove the radiator cap (1). Remove the drain bolt (2) and drain the coolant from the system. (2) 12-4