I just bought a 89 Gxl thats been converted to a carburetor and its missing a little at idle and in the lower rpm's. So I am trying to find out if its the ignition causing it or not. A little about my setup its running a FC trailing coil through a FB distributor running both the leading and trailing plugs with two wires from each of the trailing and leading ignition control modules to each of the coils. I havent seen this setup run anywhere and I am wondering if this is ok or not and if there might be a better way thats just as easy to setup my ignition? So if anyone has any recommendations or advice I would appreciate it. Thanks.

 

can you post a picture of this?

 

what carburetor and jetting?

 

No I dont have a camera to post a picture, but I can describe it some more if that would help. The carburetor is a dellorto and im not sure on the jetting but its probably setup like Racing Beat originally had them. Which one is the idle adjustment screw and which way leans it and richens it? I agree it probably is the tune I just wanted to make sure that the ignition is setup halfway decent with the FC trailing plug. I am guessing its setup like a FB with a the FC trailing coil in place of a FB coil.

 

There are two idle mixture screws, one for each barrel, right by the carb-to-manifold flanges. Clockwise is lean, counter-clockwise is rich. Basically just turn them in until the idle just barely starts to drop, then turn them back out about a quarter turn and it should be good.

 

Ok thanks im gonna try messing with the idle mixture and see if that helps. Does anyone know of a easy way to get the tach working with this setup?