Scooter Starts But Loses Power
If you're riding down the street in your scooter and suddenly it loses power, it's typically due to a problem with fuel delivery or with electrical spark. Sometimes it can be as simple as a quick short circuit caused by water splashing onto the motor, or the signs of a more complex situation. Regardless of the cause, there is a system of checks that we recommend you completing before taking your scooter into a mechanic to be repaired; or trying to fix the situation on your own.
- Visually inspect all wiring: The primary cause of misfiring engines is due to electrical issues. In fact, 90 percent of all issues like this one are caused by a loose wire or one that has a short. Here is a list of specific items that you should visually check.
- Check the battery for charge.
- Check the wires from the battery to the starter and ignition coil
- Check any fuses next to the relay box. You'll notice this as there are multiple wires running from one spot near the engine.
- Check the spark plug wires and the spark plug for signs of fouling. One way to check this is if the spark plug appears to be very wet or if a lot of excess fuel flows out of the spark plug hole after you remove it. This is a sign of a bad spark plug wire, a bad CDI or relay (which is highly unlikely) or a bad spark plug itself. The recommended replacement spark plug for any of our scooters is an NGK CR6HSA or CR7HSA.