How did you get 47 km/l last time I filled my fuel tank and ride hard and end up 25 km/l :mad: I took my bike to suzuki mechanic he check the plug and said petrol is very rich and set the mixture setting again and said now your average problem is resolved I told him my bike carb never opened please clean the carb but he refuses to open the carb I don't know why suzuki mechanic afraid of opening the gs150 carb now I filled my tank again and will again check the average if average problem is not resolved I will changed the coil, plug, clean the carb and adjust tappet at home.