This issue is often caused by some common problems, and it can usually be identified and resolved through simple checks and troubleshooting. Below is a detailed troubleshooting guide for electric motorcycles to help riders or parents easily deal with this situation.
1. Check the Battery Charge
A low battery charge is one of the easiest problems to fix. While the motor may start, if the battery charge is insufficient, the electric motorcycle won't provide enough power to move.
How to check the battery charge?
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Battery Indicator Light: Many kids’ electric motorcycles are equipped with a battery charge indicator light, allowing parents to check the current charge level.
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Three- or Five-Stage Indicator Light: These typically use different colors (such as green, yellow, and red) to show the battery's different charge levels. For example:
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Green Light: Indicates a full battery (usually above 70%).
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Yellow Light: Indicates a medium battery level (usually between 30% and 70%).
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Red Light: Indicates a low battery, needs to be charged soon (usually below 30%).
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LED Battery Display: Some higher-end kids’ electric motorcycles come with an LED battery display, showing the battery's specific percentage or charge level, such as 75%, 50%, or 25%, making it more intuitive and clear.
If the battery is sufficiently charged, but the problem persists, continue to check other potential issues.
2. Check the Battery Connections
A poor battery connection typically refers to issues between the battery terminals and the battery wires. The battery terminals are where the battery connects to the motorcycle's circuitry. If these connections are loose, oxidized, or dirty, the current cannot flow properly, causing the electric motorcycle to fail to move.
How to check the battery connection?
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Check the battery terminals: Open the battery compartment and check if the connections at the battery terminals are tight. Ensure that there is no looseness, corrosion, or dirt. You can use a clean cloth to wipe the terminals and ensure a good connection.
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Reconnect the battery: If the battery terminals are loose, gently tighten them to ensure proper contact.
3. Check the Braking System
A stuck brake can cause the motorcycle to not move.
If the brake system is stuck, the brake pads may be rubbing against the wheel too much. When the brake pads press against the wheel during braking, the friction generated may cause the wheel to slow down or stop. Alternatively, if the brake lever cannot fully release, it may prevent the motorcycle from moving, even if the motor is functioning.
How to check the braking system?
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Check the brake lever
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Ensure the brake lever can fully release: Press the brake lever and see if it smoothly rebounds. If the brake lever cannot fully return, the brake cable may be too tight or stuck. Ensure the lever can fully return to its original position. If the lever is stuck, check if there are any obstructions or if the brake cable is caught.
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Check the brake cable: The brake cable may become loose or stuck due to long-term use or wear. If the brake cable is too tight, the motorcycle may remain in the braking state and not move. Check if the brake cable is properly tensioned. When pressing the brake lever, there should be some resistance, and it should rebound quickly. You should feel a certain "hardness" but not feel overly stiff.
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Check the brake pads
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Check if the brake pads are excessively worn: The brake pads are used to rub against the wheels to slow them down. If the brake pads are severely worn or the surface has worn down to the metal, or if one side is worn more than the other, it means the brake pads need to be replaced.
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Check the contact between the brake pads and the wheel: The brake pads should evenly contact the wheel. If the brake pads are over-engaging the wheel, the mini motorcycle may be “dragged” by the braking system, preventing it from moving. If you hear a "squeaky" or "sharp" sound when braking, or if the motorcycle is not stable during braking, this may indicate uneven contact between the brake pads and the wheel, leading to uneven friction.
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4. Check the Drive Motor
Motor failure can cause the motor to start normally but fail to move.
Electric motorcycles have motors with brushes that transmit current to make the motor spin. The motor also has coils that help it turn. If the coils are burned out, the motor will not work properly.
How to check the motor?
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Check the motor exterior: Inspect the motor for signs of overheating or burning. If the motor is too hot, the coils may have burned out, and you should let the motorcycle cool down before trying again.
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Check the brushes: Generally, the new thickness of the brushes is about 4-5mm. If the thickness of the brushes decreases to 1mm or thinner, it indicates that they have worn down significantly and may no longer function effectively.
This step may require professional assistance, as it involves opening the motor to inspect its internal components. If not handled properly, it may worsen the situation.
5. Check the Controller
A fault in the electric control system may cause the motorcycle to start but fail to operate normally.
The controller is typically a rectangular or square metal box with cooling holes on the surface. Its size is typically around 10cm x 15cm x 5cm, although this can vary depending on the motorcycle model. The controller's casing is made of metal, plastic, or aluminum to ensure proper heat dissipation. It usually has brand markings, model information, and electrical specifications to help identify its functions and parameters. Sometimes, the controller is labeled "Controller" or "Motor Controller" for differentiation. If the controller malfunctions, the motor may start, but the motorcycle won't function properly.
How to check the control system?
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Check the control system connections: The control system connections include the cables or wiring between the battery, motor, and controller module. Check if the control system connections are loose and ensure the connection between the control module, battery, and motor is secure.
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Reset the controller: If there are no obvious faults with the control system, try resetting the motorcycle controller to see if it restores normal function.
6. Check the Power Switch and Fuses
A damaged power switch or blown fuse may prevent the motorcycle from moving.
If the electric motorcycle’s power switch or fuse malfunctions, the motor may start, but it won’t provide continuous power.
How to check the power switch and fuses?
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Check the power switch: Inspect whether the power switch is damaged or has poor contact. If the switch is damaged, it may need to be replaced.
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Check the fuse: Inspect the motorcycle's fuses to see if any are blown. A blown fuse could prevent the current from flowing properly between the battery and the motor. If a fuse is damaged, replace it with a fuse of the same specification. For more detailed information about the switch, you can refer to our article "Causes and Solutions for Electric Motorcycle Power Button Issues."
7. Seek Professional Help
If you've checked the issues above and the electric motorcycle still won't operate properly, it may be due to a more complex electrical or mechanical fault. In this case, it is recommended to take the motorcycle to a professional repair shop for further inspection. If you have purchased a Hypergogo electric motorcycle for your child, you can contact our customer support for assistance, and we will provide you with a professional solution.
Conclusion
When the electric motorcycle's motor starts normally but it can't move, the most common causes include battery issues, poor battery connections, stuck brakes, control system failures, and drivetrain problems. By systematically checking these common causes, you can usually identify and resolve the problem yourself. Ensuring that the electric motorcycle's components are in good condition will help ensure your child's riding safety and enjoyment. If the problem persists, it is best to seek professional assistance to ensure the motorcycle runs smoothly and safely.
