Yes I checked over everything at the time but could not find an issue. Replaced the coils with new and the bike ran great for the next three years before I sold it, still around today from DVLA records.
Just very unlucky I think. Worst part was getting a tow from my Dad in his MK2 escort home. Scariest thing I have ever done on a bike, going round corners the car was pulling me over. Madness of youth, but at the time getting someone to transport the bike home was very difficult and the garage I had bought it from (Rogersons of Orell) were not interested at all as the bike was out of warranty.