Carbureted YJ sputters only when heat or radio are on

GOIRISH

New Member
Joined
Jul 16, 2022
Messages
9
Location
Upstate NY
Just getting used to my carbureted 1990 yj. She sputters bad when the heat or radio are on (worse in mornings or evenings when it’s slightly cooler). Original Carter carb w stepper motor. Not nuttered…yet although I did unplug stepper and adjust pins and it runs way better in normal circumstances. It does still stall out a lot. Planning on nutterimg and also maybe getting a motorcraft 2150. Any thoughts?
 
OP
G

GOIRISH

New Member
Joined
Jul 16, 2022
Messages
9
Location
Upstate NY
Tested that theory out. Lights radio wipers heat - each alone seem ok. Two or more at once engine starts to misfire especially when accelerating in Third and fourth.