minibikin', Yes, the PO said he replaced the old carb with the pulse jet (and tank) because the bowl drain screw threads were stripped. I asked if he still had it but he said no, it was junk because the bowl threads were stripped. I didn't say anything but I sure wish he had not thrown that fixable carb out. The engine is a 1971 80302.
Neck, the white engine is a 1969 130202, so that's probably 5hp? One of the vintage ads for the 100 at steenstacominibikes.com sez the bike should have a 200cc B&S and that's 12.2ci so maybe they rounded up and called it a 13? Also, the ad shows a pulse jet carb. So maybe the white engine is original. Or maybe it's close enough to use for it.
Any ideas what colors the early 100s came in? I'd like to choose from a factory palette.