How hard is it to clean injectors on 1994 Chevy Truck?

I have 1994 chevy pickup truck with early fuel injection. While looking for a vacuum leak I noticed one of the injectors dripping fuel. How hard is it to take that injector ssytem off and clean the injectors? What type of cleaner should I use? Or can I dump bottle of injector cleaner in the fuel tank first?|||this injector is called a multech. by adding a cleaner to this system all you are cleaning is the screen. gm designed these to be throw away injectors. they are very cheap new. just put a new one in.|||You should use a bottle of injector cleaner every 3-4 tanks of gas to keep your injectors clean. It is easier and cheaper than having to clean them, or to have them cleaned. Use STP fuel system cleaners, or a tank of Chevron gas. These are the best injector cleaners on the market. Fix the leak and use fuel/injector cleaner in the tank.