Decided to give the 800 a little TLC, during it's tour of duty at johns towing a heavy trailer the drive belt started to slip.
i had a rummage in the shed and found a few spare belts and found one a tad shorter so went about fitting it, once stripped down i found the drive pulley loose and one hub . All tight and belt fitted also changed the oil in the tranny.
all good to go to Kingsfold at the weekend.