Well I messed around with the bikes and they both run ! The girder fork bike started on the first compression kick and made a beautiful noise with that megaphone pipe.
The other bike took a bit more work, I just had to clean the ignition parts up and hold my mouth just right when I kicked it. It smoked and puked oil all over the ground (now everyone will know which house is mine, look for the oil stains ) but smoothed out and ran good. Neither bike had been run for over 25 years.
I sure do like the girder bike, it is fast and cool all at the same time !