Hi thanks unfortunately not had to relearn i forgot through time went back to books ,manuels ,web and this site helped me a lot.Anyway Foolishly i was holding out hoping Brexit would happen and with so much gloom and doom on TV when we leave i should be able to pick up a few cheap Pursangs.Did i get that wrong and with price hike on Bultaco even worse off.There is one on E site a Frontera as seller sent me pictures a few months ago but to expensive at the time.I thought i could find a few Pursang engines for one of my exhausts but sadly not.Was going to try and see if could swap a 199A in bits for a Pursang project as it is in crates but never bothered as got cash just not enough for a rebuilt Pursang.So will keep looking for engines and full bikes to buy