What is the reason why the motorcycle won't catch fire when it is cold?

1. Reason: The temperature in winter is relatively low, the viscosity of motorcycle oil becomes high, and the atomization effect of gasoline is affected by low temperature. In this case, it will be very difficult to start the engine, especially at low temperature.

2. In winter, due to the temperature drop, the air door should be opened at this time to block the air intake, so that the gasoline in the cylinder can be atomized and thickened, and then the switch can be turned on by stepping on the starting lever a few times. Pay attention to the sequence, otherwise the spark plug will be flooded easily. If water is found in the spark plug, you can try to screw the throttle to the end and step on the starting lever several times in a row to solve it. If it still doesn't start, you need to remove the spark plug for cleaning.

3. If the battery is dead, it needs to be pushed to a gear on the slope. After speeding up, quick loose clutch ignition can be started; If you are alone on a flat road, you can first open the throttle, directly put on the third gear, and ignite for two or three times to start the vehicle.