Moped Army

more hp. less restricted. get a nice pipe.... ha. build one. performance mods are similar for alotta bikes.... upsize/upjet the carb+bigger expansion chamber... gearing=size down the rear sprocket, sachs got no room for much bigger than a 12 tooth front. rebuild the clutch+get a kit. keep yr motor clean. check out the tuner spreadsheet. its rather informative. unless you rebuild the clutch, yr lookin @ 40+or-, but go faster and yll have chronic clutch issues.