slug

My 6 thousand service was £259 + vat which seems to be around about list price.

According to the book they should have replaced the: spark plugs, Air filter, Oil filter, Fuel Filter and Engine Oil
They should have checked/adjusted the: Timing belts, Cylinder compression,Throttle body synchronisation, Wheel bearings, steering bearings, electric fan??, valve clearance Rear wheel cush rubber drive (whatever that is), front sprocket fastening plate and tightened some nuts and bolts!
They should also have cleaned your fuel tank and carried out some general lubrication.

HTH