Thanks again for your replies and proffesional advise, I finally went back and rechecked and made sure everything was working as described ,took out coil and cleaned sleeves and plunger ,cleaned all contacts again and presto all working as it should ! All score reels back to zero first time.Much appreciated .
Great work mate , that is a real achievement and also gives you a good grounding to keep things running now that you understand part of the process .