I have an mth berkshire which worked perfectly until about 2 months ago. Then it started hesitating, the motor was cutting out briefly, So I thought motor brushes were worn so I replaced the motor along with the tack board mounted to it. I still have a problem, motor still jerks and sound is always idling, never chugging as the engine accelerates. I can blow the whistle and ring the bell also,
Does anyone have any idea of what I need to replace? I have not replaced the electronic flywheel. Could this being causing a problem since I noticed that it had some scratches on it?
Any help is appreciated.
Thanks, Paul
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