So I got a call about my sputterint d170 and it happened to be a fuel problem, debris in the tank from previous owner, which leaves me to need to flush the gas tank, replace the fuel filter and clean the carb. I have some carb cleaner so I have that much covered. Now do I have to remove the carb to properly clean it or can I just spray the cleaner in there. Also in order to flush the gas tank I read I have to remove it in order to do so? Does any one have experience with this that can give me advice on how to do so. I figure the fuel filter is easy, remove the clamps and pop a new on one right? any help is greatly appreciated thanks in advance.