Melex 512 Not moving

[dan1508]

I have a Melex 512 that when we put it away in the fall it moved fine. Now that it's warmed up I've tried to run it and when I step on the gas the motor runs, but it doesn't engage and move.

I know in previous years we've sat for a few while it warmed up and moved, but I did that for over 20 minutes and nothing.

Is there something else I should be looking for and checking or does it just need some more warm up time? any help is very appreciated.