Why does the motorcycle not accelerate after getting water inside?

[SanEva]

Here is an introduction to the reasons and solutions for a motorcycle not accelerating after getting water inside: Reasons for water ingress causing acceleration issues: It could be due to water entering the fuel tank or carburetor, or wetting the air filter, affecting the quality of the air-fuel mixture. It could also be caused by water ingress or moisture in the ignition coil, high-voltage coil, or ignition switch, or due to short circuits in the ignition or shutdown circuits caused by water. Solutions: You can inspect the condition of the air filter and carburetor separately. Loosen the drain screw at the bottom of the carburetor to release some gasoline for testing. Cut the ends of the carburetor's waste oil pipe and vent pipe into longer angled openings and direct the openings toward a dry area inside the frame.

[LeBeau]

I've been riding motorcycles for over a decade and have encountered fuel delivery issues due to water ingress several times. The most common scenarios are rainwater seeping into the fuel tank or wetting the carburetor, where water settles at the bottom of the tank and blocks the fuel line, causing the engine to lose power due to insufficient fuel supply. Once after riding in the rain, water entered through the air filter intake, and the soaked air filter completely blocked the airflow, making the bike feel like it was gasping for breath. In such situations, never force the ride. First, push the bike to a dry area, remove the spark plug to check for moisture, then focus on the fuel tank and carburetor—the carburetor usually has a drain screw at the bottom; loosening it can drain the accumulated water. If water gets into the fuel tank, it's more troublesome, requiring the entire tank of fuel to be drained and refilled. Now, after every rainy ride, I make it a habit to inspect these areas—prevention is better than repair.