As promised here is the final update.
She is all fixed and running sweet, the guys at the dealers and suzuki UK have been fantastic, the problem worked out to be the primary drive gear behind the clutch basket.
The level of service from suzuki has been 100% outstanding, free collection, free loan bike, free coffee
even suzuki UK phoned and discussed the in's and out's
So just one to keep your ear on
Thanks for your input guys