Darran

Hi I'm in the process of rebuilding a Yam XT 250 1981. The bike was dressed up to used in a war film by a company (Classic Cars 99) who supplied vehicles to the film industry. This bike was modified to have a camera set up on it and beefed up for jumps. It seem that the steering yoke has been changed possibly 500. I've bought a replacement bottom yoke but not a top one. The problem I have is that the clock ( two circle ones) fit into a base which bolts to the top yoke but the centres don't match up. So it either the a different top yoke or I got the wrong clocks? I think the centres on the yoke is 100mm and the clock base is 120mm. Any thoughts