[penaj778]

I just purchased my 02 s2000 and it has a slight stumble at idle. i cleane the trottle body and it was still there. i was trying to find the fuel line schrader valve to perform a fuel injector flush but i cant find it. does the s2000 have one? or is there another procedure for cleaning the fuel injectors? or do i might have another problem not related to the injectors? i have all the tools neccesary to peroform a fuel injector cleaning i just need to find that stupid service port. hopefully there is one. thanks for the help.