Thanks Charlie I appreciate your response. I’ve replaced all the cabling with new cabling where possible. I’ve ran a strimmer and other items off the same circuit and have no problems. Borrowed a lawnmower from the mother in law and no issues. The basic design looks simple enough. a Microswitch to start/stop, this runs to a capacitor in the motor and finally into the motor via Carbon brushes (I think that’s the route) so I can bypass the Micro, leaving the rest. I suppose the windings in the motor could have deteriorated with age. I would have just like to have isolated the problem. I can replace any of these items if they are still available, however it may be more cost effective to replace the machine. I understand this however I was just trying to see if I could breathe more live into the auld yin. PS No I’m not sure where I’d find a circuit diagram…I have cleaned where I can access, even separated the motor and don’t see anything obvious.. thanks again any further help from anyone appreciated…