Yes, a blown fuse can indeed cause a motorcycle to have no spark. The ignition system of a motorcycle typically relies on electrical components and circuits to generate the spark needed for combustion in the engine. If a fuse related to the ignition system blows, it can interrupt the electrical flow and prevent the spark from being generated, resulting in a lack of ignition.
In motorcycles, there are often dedicated fuses for various electrical components, including the ignition system. These fuses are designed to protect the electrical circuit from excessive current or short circuits. If a fuse related to the ignition system blows due to a fault or electrical overload, it will disrupt the electrical connection and prevent the ignition system from functioning properly.
If your motorcycle is experiencing a lack of spark, it's worth checking the fuse box to see if any fuses related to the ignition system have blown. If you find a blown fuse, replace it with a new one of the correct rating. However, keep in mind that a blown fuse is typically a symptom of an underlying issue, such as a short circuit or a malfunctioning component. If the fuse continues to blow after replacement, it is advisable to have the motorcycle inspected by a qualified mechanic to identify and address the root cause of the problem.