CA77 CARB PROBLEMS

[marzini]

The only reasons I can think of for having to dial in the air screw too far (usually 1~2 turns out is normal for alot of carbs) is that the slow jet is too small or there is a vacuum leak somewhere. ie: if the screw is too far in, it needs a bigger slow jet. If the screw is over two turns out, the slow jet needs to be smaller. Vacuum leak seems more likely. Are BOTH carbs adjusted the same?

[LOUD MOUSE]

Remove and clean the Slow Jet then go from there. ............lm

Follow-up, my 1965 dream is running very well now, wish I could say which thing I did ti fix it. Runs good, but now air adjustment screw must be run almost all the way in for it to run properly. Any ideas there?

[rgtaylor2]

I changed my 65 CA77 from the stock slow jet #35 to the Keyster kit #40 and ran a hat pin up thru the hole in the slow jet passage to make sure it was open and clean (no need to remove the carb) and that solved my idle problems completely.