Working Fuel Injectors

Thanks for the reply on the last post. Yes one of the Fuel Injector's is leaking a little, so I want to get it done as soon as possible. I posted on craigslist to see if anyone good Injectors for cheap. I received a few replys. How can I tell if the fuel injectors are in good working order if they are comming off another honda? I just got a manual so I am going to give replacing them myself a shot!

thanks!

jt