i don't know if this is right, I do the same procedure as after racing empty tank add gas let it run until it stalls the empty the tank dump type f trans fluid in disconnect the the hoses at the pump drain it fill with fluid remove carb drain spray with wd40 put it away upside down so that the needles do't stick. i have two injector system to do one is a stack and the other is a toilet and don't know how to do the injectors and small hoses.