Generally, A standard motorbike can easily fall if it is knocked over. Maybe when your motorbike is outside and the wind is pushing it, or it's in the garage and you accidentally hit it on your way out the door. Why won't a motorbike start after falling?? If the motorbike won't start after falling, the biggest reason may be fuel delivery problems such as too much fuel leaking into the engine cylinders. Motorcycles may also have internal switches that are not working or have their electronics disconnected due to a fall. Nah, Following are several reasons that Otodiva.com has quoted from Motorcycle Habit regarding motorbikes that won't start after falling, Come on, let's see!
The most common reason a motorcycle won't start after a crash is due to fuel delivery problems. This will be directly targeted at carburetor design. As you all probably know, The way a carburetor works is by getting gravity fed from the tank to the carburetor, and then from the carburetor directly into the cylinder. When your motorbike is hit and fuel spills, sometimes too much fuel can be fed from the carburetor into the engine cylinders. If too much fuel goes into one of the cylinders, The spark plug may have difficulty sparking because the connection above it is too wet from gasoline. Apart from the cylinder being flooded, Another common reason a motorcycle won't start is due to a malfunctioning internal switch. There are many sensors on the motorbike, and the newer the motorbike, the more sensors you will find. On newer motorbikes, they have a kill switch that detects whether it is standing upright or lying on the ground.
Finally, the condition cannot be started because it is caused by several disconnections in your motorbike's electronics if it falls. There are many joints in a motorcycle that are needed to reverse it. The main one is the connection made to the battery. On older motorbikes, or motorbikes stored outside, Corrosion on battery terminals is normal, but must be cleaned regularly. If the corrosion on the battery becomes severe enough, joints made on it can become brittle or worse. When a motorbike with a bad battery connection falls, Don't be surprised if the impact causes the joint to shake. So, in conditions where you feel it is neither the fuel fill nor the kill switch, check the connections your motorbike has to the battery.
Read Also, Motorcycle Safety Tips When Parking in Large Areas