Now you might think that spraying lighter gas all but a warm engine isnt wise, however the flash /ignition lessening of gas is more or less 400C fittingly you dependence a naked fire or spark to set it off and Ive used this method for many years without incident. work your showing off through each realizable joint one at a time and you should find it. I use a slightly flattened piece of brake pipe and some rubber hose from the can of lighter gas to give a spraying wand and permit a take in hand blast of gas into each area, especially those hard to attain in the same way as large implements.
I started the car going on this morning, it starts stirring and runs at 1750 and within a minute or hence climbs exceeding 2500.. It is government serene though, just artifice difficult than it should be. I furthermore checked the throttle screw plate/return screw, purposefully turned it out and nothing changed. put it urge on to exactly where it was. No vacuum leak sounds and every connections verified. I quality good roughly them as I've been in there a bunch of times..
have you looked into throttle body coking and/or combustion chamber/valve carbon buildup? are you in the works to date on all maintenance; spark plugs fuel filter pcv vlave etc? have you performed a visual inspection and listened to engine as it warms happening and is warmed up? oftentimes in engine play-act many factors may cause the thesame symptom(s)