Ahhhhh Sucess,found a leaky gasket on one cylinder,cleaned the carb,we checked the plugs it appeared that one cyl was running lean,tried partial choke and the engine ran at full throttle,after shutdown I then left the choke full open and the engine ran at full throttle,maybe a partial blockage in the carb that cleared itself,now both exhaust are normal and not just smoky on one side.anyway it seems to be running like a champ,now to maiden the bipe.