What Causes a Scooter to Stall When Accelerating After Starting?

[XavierFitz]

Here are the reasons why a scooter stalls when accelerating after starting: 1. Idle speed too low: This causes the air-fuel mixture to become too lean when accelerating due to a sudden increase in air intake, making it unable to ignite and resulting in stalling. In this case, you can adjust the idle speed appropriately. If your motorcycle's idle speed is normal, this reason can almost be ruled out. 2. The choke switch is not closed before cold starting: Accelerating under this condition can also cause the engine to stall. If your motorcycle's choke switch is not open, this situation can also be ruled out. 3. Carburetor fuel supply issues: Such as a clogged fuel filter or a damaged float chamber switch causing poor fuel supply. When accelerating, the fuel level in the carburetor float chamber drops, but the subsequent fuel supply cannot keep up, leading to stalling. This type of fault usually results in a brief increase in RPM when accelerating, followed by stalling.