Thank's Loz, SEP were just the ticket. They arranged collection from Nige this Thursday. Full crank rebuild, new pistons in .50 or .75 as appropriate, rebore or hone, £266 the lot tops. Thanks to Nigel for assistance. <excited squeal> Ooo it could be together and running sweetly again soon. Suppose it might be good to get the leccy ignition done same time if I can find a conversion.