i am going to try and fix my leaking injectors but i wanted to better understand how the injectors work. so here is my question i wanted to know which injectors are the ones working when the FC first starts up and when do the others start working. which ones are more famous for leaking primary or secondary????

secondarys only come on after 3800rpm. They start to leak when dirty and old from the pressure in the fuel line, technicaly either set could develop the problem just as easily. If i was having issues id send out both sets for cleaning.

ok because i am buying just two injectors for now, only have that much money, and i was just wondering which ones i should most likely replace

why buy new ones? remove all four and send them to RC and they will test them and if they need to be fixed you can have them fixed their and flow tested for a fraction of the cost of buying new ones.-

http://www.rceng.com/

put the best ones in the primary, and the best of the old 4 in the secondary holes

I agree with RotaryVillai. Send them to get cleaned and flow tested. Then if they are no good buy new ones. I had mine cleaned and flow tested and they were fine and from memory it wasn't anywhere near as expensive as I thought, and a lot cheaper than new injectors.

I agree with RotaryVillain. Send them to get cleaned and flow tested. Then if they are no good buy new ones. I had mine cleaned and flow tested and they were fine and from memory it wasn't anywhere near as expensive as I thought, and a lot cheaper than new injectors.