Kadron, carburetors are probably the easiest dual carburetor set ups to use on an aircooled VW engine.  They are a simple single barrel design, which makes them easy to install, set up and tune.  You may also hear the names "Brosol" or "Solex" when referring to the dual Kadron carburetors.  In this article, I will show you what I know about installing and troubleshooting your carburetors.

At the time I was writing this article, I was experiencing problems with my dual Kadron set up in my 1966 Beetle.  After 14 months of non-stop daily driving with my Bug, I developed a hesitation when trying to accelerate, and a decrease in power.  My problem was also added to when I installed a new fuel tank sending unit (the bobber) and I wasn't able to calibrate it to the new Brasilian fuel gauge that I put in the car upon 14 months ago.  To keep the story short, I ran out of gas!  When you do that, you pick up all sorts of crud that has settled to bottom of your fuel tank and introduce it to your fuel system.  Yuk!  What a better excuse to write an article for German-Pride? My loss is your gain.  :) 

So your carbs are giving you problems.  What are you to do?  The first thing you need to do is make sure that your overall condition of your engine is in good working order.  Check your valve adjustment, your compression, your spark plugs, and your end play.  See the Official Factory Service