Inaccurate speed on speedo MP 250-A scooter By deaf250scooter (Read 147 times)

[deaf250scooter]

Hi to all,

    I have an issue with MP 250-A scooter and I rode on the way home from work on State Highway, was riding at 65-70mph.  For some reason, speedo needle decided to go down to 90mph while many cars passing by me at 70mph uphill.  I know it's not connected to front wheel, it's connected to rear via wiring and sensor inside. Does that mean belt is wearing out or variable clutch need tuning?  Thanks

Thanks

[kz1000st]

Did it work properly before this? Chinese speedometers are notoriously unreliable. If there's a wire to the back wheel wheel it may be like a bicycle speedometer and there's a magnet and sensor.