So after all the work and replacing gaskets, cylinder & pistons the E50 died in dramatic fashion! All vitals were good, but when started it sounded like a bag of nails! We think that the crank is faulty and has come loose some how! The con-rod has a lot of play in it (left and right) which I don't think is normal! So........... Mopeds at dawn have bought a ZA50! The two speed model should give us some head aches but also should give me some real speed too!