I am not entirely sure as I haven't played with the Mr Motorman I have that much but if its like some of the earlier Plarail R/C's make sure that the Receiver is not blocked my anything like buildings or tunnels which could interfere with the signal. I do remember that one of the issues I didn't like about the Mr Motorman is that it wasn't instantaneous as it would take a moment for it to react to a command.
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