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What is the reason for the motorcycle frequently stalling and feeling like it's not getting fuel?

1 Answers

SabrinaDella

07/29/25 5:29pm

When a motorcycle suddenly stalls, there are generally two major issues: fuel system and electrical system. Below is an introduction regarding fuel supply: Abnormal fuel supply: When it is confirmed that there is fuel in the tank: Check whether there is fuel in the carburetor. If there is no fuel, it indicates that the fuel line from the tank to the carburetor is blocked and should be cleaned and unclogged. If there is fuel in the carburetor but the engine still cannot start, check whether the carburetor fuel filter is blocked or if the main jet is dirty. Even if the engine can start, the issue should not be ignored, as it suggests that there is an undetected fault in the fuel system. The entire fuel supply pipeline must be thoroughly unclogged; otherwise, the issue of the engine stalling automatically may recur. Engine overheating: Overheating can lead to poor lubrication, causing the piston and cylinder to seize, which can also result in stalling. After diagnosis, first check whether there is lubricating oil in the crankshaft case. If there is little or no lubricating oil, inspect whether the oil pan or drain plug is leaking. After identifying and fixing the issue, refill with the specified amount of lubricating oil. Electrical system fault: The cause of sudden engine power loss is usually related to wiring. Check all connectors and the trigger coil, clean off oil stains, increase the clamping force of the connector clips and sockets, and enhance contact strength to ensure stable contact. Clutch or other parts seizing: If the screws on the clutch support disk are not tightened properly and the safety riveting points are not secured, the screws may loosen further during engine operation, causing the screw heads to press against the transmission secondary shaft bearing cover. This can lead to the clutch seizing and failing to rotate, resulting in sudden stalling.

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