Original jetting Carter 9625S
Posted:
Thu Dec 02, 2021 4:22 pmby carburetorguy
Hello all!
Is there any of you folks having jetting specification for a universal Carter AFB 9625S carb in his archives?
Thanks for listening
Peter
www.carbguy.com
Re: Original jetting Carter 9625S
Posted:
Thu Dec 02, 2021 7:27 pmby rgalajda
UNIVERSAL 625 CFM 9625S AFB Main .098 Sec .095
Re: Original jetting Carter 9625S
Posted:
Fri Dec 03, 2021 7:16 amby GTO Geoff
Interesting.
The original 625 Comp Series AFB had a 0.089" pri jet. Much smaller than the later 9625 emissions carb.
The replacement 625 AVS carbs, which had the same primaries as the AFB, also used a 0.089" pri jet.
I suspect the 9625 had larger MABs [ for emissions? ] which reqd a larger MJ to compensate.
Re: Original jetting Carter 9625S
Posted:
Fri Dec 03, 2021 11:50 amby carburetorguy
Good morning from Sweden!
Thanks a thousands for the quick replies, I appreciate it!
Peter
www.carbguy.com
Re: Original jetting Carter 9625S
Posted:
Sun Dec 05, 2021 6:21 amby GTO Geoff
Yup, another peculiarity.
The diameter spread between the power & cruise step on production AFB/AVS carbs is usually much less than the emissions AFBs, which have a greater spread much like the Edel carbs. The Comp Series AFB rods also had a smaller spread. There was at least one AFB that had a 'parallel' rod, cruise & power step the same. Going on memory here, I think the part # was 16-202.