idle problem

wondering if anyone could help me out, i got a 91 maz b2200 and the problem is after the engine warms up it will start to bog and stall only at idle runs good and cold idle runs good, no motor work done. and stuff ive already checked out have been timming, ignitoin parts, fuel/air adjustment screw and still cant seem to figure it out, i think i might need the carb rebuilt but wonderin if anyone has any ideas first?

You need to scrap the factory carb and get a Weber.

yea i know, the factory carbs are junk, but im lookin for a fix for meantime untill i put a weber in. thats why im askin if anyone ran into this problem before

I have a similar problem. Weber would be nice but smog is a big issue in Cali. Russ D?

even down here its a issue, until the trucks 20 years then it doesnt need it anymore, but i still got a few years to go, so thats why i need facotry carb fixed for now, so no more imputs?

how much r these web cards everyone speaks of??? i sure would like to know cause emissions dont matter here in waycross, ga so one of them would really help my idiling prob i hope... low intentions 4 life

did you change the fuel filter. I did not see that in your list of things you checked

if you already havent try to remove all the eletronics and vacume lines off the passenger wheel well. plug all the lines on the carb, you only need 2 lines, vacume advance and booster line. a minor rebuild carb kit might help 2 these carbs are known for weak accelorator pumps over time. i did this to my old truck and ran better than factory ever did. hope this helps.