ok i have a 86 Base model rx-7. The only mods i know of are an intake. It idles at about 1k, ok so today i was trying to gte to lower it and noticed theres some sort of ticking noise, its very constant and when i adjusted the ideling screw to lower it it got faster. My engine also sort of like jumps not really jumps just a quick little shake like someone tapped on the gas. Does anyone know how i could lower my ideling and if the ticking noise is normal?

 

you need to re-adjust your TPS