No.1 Be optimistic - We have the solution here!
Join the XT Supporters (
click here ) and then start a thread in the Ask Kev section (
click here ) and consider it problem solved as Kev will take you step by step through all the options which you can then pass to those spanner monkeys at your local Yamaha garage
p.s.: before going back to the Yamaha Garage print the attached picture and show it to them for reference. Thanks