To fit the fuel lines of this machine, you will need two hoses, the 'inlet' hose and the 'outlet' hose. The outlet hose is the longer, which connects to the fuel filter, inside the fuel tank. This then goes up to the carburettor. The inlet hose is shorter and connects to the primer bulb and the carb. Before, connecting the hoses you may put them in hot water to make it easier to install them.