Don't suppose it will help much but the dealer was Ron Parkinsons (Parkies). They went tits up twice. Once when in Marks Tey - before they reopened in centre of Colchester - and then again a couple of years back. However, the chief spanner guy was a top mechanic called Glen Harrison who has now opened a service set up
http://www.moto-v.co.uk/ Long shot but he might be able to help or know ' a man who can'?