Complete tear down and motor upgrade to a Baja Doodlebug Racer.
Total work hours = 14
Predator 212cc (6.5 HP) engine from Harbor Freight = $103 shipped
PMR motor mount plate, drive shaft spacer w/clutch mounting bolt and throttle linkage kit = $66 shipped (hotrodminibike.com)
3/4in 12tooth #35chain Max Torque clutch = $36 ebay shipped
New seat cover = $21 shipped (etsy.com)
2 cans of spray paint, 320 grit sand paper and acetone from Home Depot = $21
#35 140link chain (ebay) = $12