I have a Legacy-SD40- 6-28257 that has a reoccurring problem. After a month or so of excellent running; no control of the speed, just creeps along. No direction control,no stop when it does this. Just keeps going slow. The sound is all there. In the past several times it has happened I remove the shell, reseat the connectors,put shell back on and it runs fine again. I do a reset each time it happens to no avail. Any ideas on what the problem may be. It is down now & am going to wait for info before I do it again. Wearing out the shell mounting screws. This is such a beautiful engine I don't want to mess it up. One of my favorites. Tom
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