17-02-15, 08:12 PM
Lol.....well iam old so your half right noggy :lol.......yes, as suggested check the plug caps/leads in the dark, look out for sparks jumping across from plug caps/leads to engine , leads can go hard and brittle with age and are sealed to the coils so trimming the ends to get a good connection is the best solution and if wont cost you anything....a good place to start 
One, is never going to be enough.....