GP, I would try to swap the motors. But I would use a mechanical join. That means no soldering iron. The way I do this is to: Get a bit of shrink tube, as skinny as possible, drop it over the wire from the plane, one for each wire. Strip a little bit of the plastic from each wire. Wrap them together between your fingers. If the motor turns in the direction desired pull the shrink tube over the join and hit it with a blow drier. The plastic shrink tube should form fit over the wires. Avoid using the blow drier on the wing, it could have consequences. Tim

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Tim