30 Zenith Carb

[saintjoelarry]

Originally Posted by kenparker

In the model A world 85% of the carburetor problems are electrically generated.

Originally Posted by 700rpm

If this just started, I would suspect it's not the carb. My first thought is condenser.

First, glad you found the problem. It sure can be frustrating when you're looking for the solution, but it sure is rewarding when you find it.

I couldn't agree more with these two gentleman.

My model A was running very rich. I kept adjusting the float until I could barely get any gas flow, yet the exhaust still smelled rich. I replaced the jet cap with the smallest I could find. Still ran rich.

I checked the timing a few times, each time confirmed it was correct.

Finally, when I was checking the timing once, when I rotated the cam nut to open the points, I did not get a spark. I tried again and got a spark. I did this about 20 times, and got a spark probably 80% of the time, but not every time. I checked and found some carbon build up on the points. Filed them down a bit, checked the gap, and presto. Runs perfectly.

So as you say, my "carburetor problem" was electrical.

[tbirdtbird]

the lower dizzy plate, the condenser, and the pigtail are very trouble prone and should be the first place for ppl to look.

Once they have been restored back to the way Henry intended they are actually very trouble free

[700rpm]

"Once they have been restored back to the way Henry intended they are actually very trouble free."

There it is, right there, truth for many if not most of the problems we discuss here.