Why does a motorcycle stall when encountering water?

[DiCassidy]

1. Stalling caused by water infiltration into the fuel system. The fuel system, also known as the fuel supply system, mainly includes components such as the fuel tank, carburetor, and air filter. Water primarily infiltrates through three pathways: 1. From the fuel tank cap into the fuel tank and then flowing into the carburetor; 2. Being sucked in through the air filter intake and eventually reaching the carburetor; 3. Directly entering the carburetor through the carburetor's own vent tube. 2. Stalling caused by water entering the electrical system. When the vehicle is driving normally and suddenly feels like it can't accelerate, with the speed slowing down evenly before stalling after a few seconds, this is mostly due to water in the fuel system. When the vehicle is driving normally and suddenly experiences a sharp drop in speed, with the rider feeling a noticeable jerk, and the engine stalls quickly (within about 1-2 seconds), this is generally a case of water in the electrical system. Another scenario is when the vehicle is driving normally and suddenly can't accelerate, with the exhaust pipe emitting intermittent long "poof, poof" sounds, as if the engine fires only every few rotations. After persisting for a while, it eventually stalls, which is also a symptom of water in the electrical system.