How to adjust a Weber 45 mchh carb?

Answer:
There is a single idle mixture screw on top of the carb, if there isn't much change and still running rough, you'll need to re-jet. Try .55-.60 idle jet, worked well for mine. Ordered 170 mains waiting to put in and test.
First answer by ID2161352721. Last edit by ID2161352721. Question popularity: 2 [recommend question].