OutdoorKing Repair Forum Forums Repairs and Maintenance Questions on Walk Behind Lawn Mower Frames Victa Lawn Mower Frames Victa 125cc 'Storebrand' mower

I have a 1973 Victa 125cc that until recently worked perfectly. However now there is only a very weak spark at the plug. The magneto is gapped correctly and the plug is new (ish)
Do I need a new coil?????
If so how much would it be??????