you keep referring to these bikes as mopeds, they are fine pictures, I have most of them too, but no means to show them here, BUT they are actually the finest motorcycles (motocycles) that money could buy in their day, there was no means to start an engine unless the bike was moving therefore they required pedals,, oil was kept in a separate tank and hand pumped in when the engine got too noisy then cycled through the motor and expelled ,, this was called a total loss system you had to fill up with oil when you got gas (roughly .08 per gallon at the time),,Rog