Carburettor fuel systems 195 Carburettor fuel system 196 Carburettors 198 Air and fuel flow in a carburettor 199 Carburettor operation 199 Carburettor systems 201 Carburettor construction 201 General carburettor design 203 Carburettor external construction 204 Carburettor service and checks 205 Basic carburettor problems 207 Servicing fuel pumps 207 Testing mechanical fuel pumps 208 Checking electric pumps 210 Fuel system problems 210 Technical terms 211 Review questions 211