Unless the car has mega miles, the only thing is dirt inside or outside the carb to hinder the proper operation. Parts can wear out with many miles.
Having water in the gas tank will work its way up to the carburetor.
A 1999 Ford is fuel injected, it does not have a carburetor.
A carburetor is found in an internal combustion engine. The purpose of the carburetor is to blend fuel and air.
Siphon will fail to work if the level of the liquid in the two vessels are at the same height.
A carburetor is a part of a combustible engine that blends the air and fuel so there can be ignition. It is one part of the engine that you cannot do without.
The heater and the AC are different systems other than the blower, so they normally fail independently. The AC can fail for many reasons, high on the list are low freon (which means there's a leak) and the compressor.
The partnership will probably fail.
No, a Honda Rancher 350 carburetor will not work on a Honda Rancher 400. The difference in the sizes of the 350 and 400 carburetors are not compatible with each other.
Yes, if you have a fuel pressure regulator.
Well
Any carburetor works on the same basic premises. They mix fuel with air so that it can be ignited to be used to propel whatever engines it may be in.
They would all fail, they work together.