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V8 Air Fuel adjustment

Wavey · 2021-10-01 16:14:42

Hi All. I'm trying to set the A/F ratio on my 71 Stag with Weber carb. My target is 13 using an AFR sensor in the exhaust. I can achieve the target with 1 row of cylinders but I can't get the other row any leaner than 10.5 before the adjustment screw bottoms out. Does anybody have any idea what would cause this? I would…

01-10-2021 4:14pm

#1

Wavey

Registered Users, Registered Users 2 Posts: 861 ✭✭✭

Join Date: January 2003

Posts: 577

Hi All.
I'm trying to set the A/F ratio on my 71 Stag with Weber carb. My target is 13 using an AFR sensor in the exhaust. I can achieve the target with 1 row of cylinders but I can't get the other row any leaner than 10.5 before the adjustment screw bottoms out.
Does anybody have any idea what would cause this?
I would think that any dirt in the carb or blocked jets would cause the opposite problem.
Many thanks for any advice.

Wavey

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