In a carb, air flows into the mouth, thru a venturi and out into intake.
There is a throttle flapper above venturi, and a choke flapper at mouth/ air inlet.
This is a basic and not completely correct explanation due to differences between air pressure and manifold vacume, also leave out other parts of the carb, but should give you the concept.
Opening throttle keys more air flow thru, air passing main atomized and I drawn into intake manifold.
Choke closes off air flow befour venturi, increases effect of manifold vacume, sucks more fuel. In the case of a partial plugged main, or low bowl fuel, choke basically gets you more fuel if available..
If float is stuck closed, or valve dirty, blocked, not much gas makes it to bowl.
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Today's Featured Article - Hydraulic Basics - Part 2 - by Curtis Von Fange. In the last entry to this series we gave a brief overview of hydraulic system theory, its basic components and how it works. Now lets take a look at some general maintenance tips that will keep our system operating to its fullest potential. The two biggest enemies to a hydraulic system are dirt and water. Dirt can score the insides of cylinders, spool valves and pumps. Wate
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