Schwinn 10 speed

this was a bit of a pain in the butt to accomplish, but it works great. it was a fun project. its a little hard to handle on a rough road, however.
i shaved the head and opened the ports a bit. side gapped and indexed the plug. put an 8mm wire on. polished the piston. found an ebay pocket bike exhaust, cut and rewelded it to fit. the carb and boost box is for a pocket bike. i made a manifold out of high density (polyethyline?). it was super easy. the seat mount is a modified bike rack, nothing special.
i haven't tested the top speed since i switched out the float carb, but i did get it up to 42mph.
 

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