Rang to say they sheared a spark plug off in the head whilst removing it. Message on answer machine said the bike is badly corroded and as it's not washed!!! It's 2 years old, washed cleaned and dried and not ridden on salty roads..... then said that the garage who serviced it last over tightened the plugs !!! But it's it's first service proper service save an oil change at 7k ! 15k Ducati MTS.. 08/08 read my update below.... they did a great job!