Hello friends, I bought a used Yamaha Thundercat in 1997 and wanted to change the cooling fluid, watched a video from YouTube and did so. I only found the manual and found the operating instructions and found that I did not do it the way it is in the manual. Do I risk an engine damage? The following: I opened the hose at the left side of the water pump below or loosened the clamp and then from the hose of the n Radiator comes the cooling liquid drained, it is of course also a little out of the water pump, according to the manual one should unscrew the screw with the water pump and so blow and additionally two screws at the cylinder head should be opened and there also coolant should be drained… However, I did not do this, just loosen the hose that runs to the water pump and then filled with distilled water at the top in the radiator, the motorcycle approx. 1 minu running around the system to rinse after that again the liquid left out and filled up in the radiator with fresh coolant… Then just start the motorcycle and leave the radiator open so that it is ventilated… I found at the end that I only filled 1.5L, according to the manual belong in the cooling system 1.95L and 0.55 in the reserve tank… take that I have not drained the whole coolant, maybe there is air still inside I risk an engine damage? Bil d 1 Figure 2