There could be several reasons why your motorcycle stalls when you accelerate. Here are some common issues that could cause this problem:
Fuel delivery problems: If there is an issue with fuel delivery, such as a clogged fuel filter or a malfunctioning fuel pump, the engine may not be getting enough fuel when you accelerate, leading to stalling.
Carburetor issues: If your motorcycle has a carburetor, it may be dirty or improperly adjusted. A dirty carburetor can restrict the flow of fuel, while an incorrect adjustment can result in an improper air-fuel mixture, both of which can cause stalling.
Ignition system problems: Faulty spark plugs, ignition coils, or other components of the ignition system can cause intermittent or weak sparks, leading to engine stalling.
Air intake issues: A blocked or restricted air intake can disrupt the air-fuel mixture, causing the engine to stall when you try to accelerate.
Electrical problems: Faulty wiring, loose connections, or a malfunctioning sensor can disrupt the electrical system and lead to stalling when you increase the throttle.
Clutch problems: If your motorcycle has a manual transmission, a slipping clutch or a worn-out clutch plate can cause stalling when you accelerate.
Engine overheating: If the engine is running too hot, it may not be able to handle the increased load when you accelerate, resulting in stalling.
It's important to note that the exact cause of the stalling issue can vary depending on the make and model of your motorcycle. If you're experiencing persistent stalling problems, it is recommended to have your motorcycle inspected and diagnosed by a qualified mechanic who can identify and fix the specific issue.