What Causes a Motorcycle to Not Move When in Gear?
2 Answers
Here are the reasons why a motorcycle may not move when in gear: 1. Transmission issue: The scooter uses a continuously variable transmission. 2. Loose drive belt: Scooters typically use belt drive systems. 3. Rear wheel assembly problem: Improper installation of the brake and drive components. Below is an introduction to motorcycle-related content: 1. Working principle: When the pedal is pressed, the mechanism pressurizes the spring, causing the outer edge of the spring to lift, which separates the pressure plate from the friction plate. At this point, the friction plate and flywheel are no longer connected, so even if the engine continues to run, power is not transmitted to the transmission or wheels. This allows the rider to shift gears or stop without stalling the engine. 2. Power transmission: At low crankshaft speeds, the two friction plates do not contact the housing, preventing power transmission. At high crankshaft speeds, centrifugal force causes the friction plates to move outward and contact the housing, enabling power transmission.
Last time I encountered this issue while riding my bike, it took me quite a while to figure it out. The most common reason for the bike not moving when in gear is that the clutch cable is too loose, preventing the clutch plates from separating when you pull the lever. Chain derailment can also cause this, especially if you've just adjusted the chain tension—you should pull over and check immediately. If the bike is hard to move when cold, consider the oil viscosity; using the wrong oil in winter that's as thick as paste will definitely cause gear sticking. The scariest scenario is damaged gears inside the transmission—if you hear clunking noises, you must get it fixed right away. Oh, and beginners often forget to put down the side stand before shifting, which will obviously cause the bike to get stuck. I recommend checking the chain and clutch cable first, as these are things you can fix yourself.
