QR Code Link to This Post SouthwesternNY14755ZipRupp Roadster minibike Tecumseh 4hp mini bike engine motor kart parts NOSI have a couple boxed NEW OLD STOCK Std. Bore Wiseco performance forged pistons to fit the Tecumseh HS40 engine, ring set included, $40 each. I also have a 4th oversized for $50. These have been obsolete/rare for decades and never found on ebay…….Cash firm price.Reply with Name, LOCATION and phone number and I will call when I can, by appointment only. Thanks.Keyword; Mini cycle, trail bike, scooter, all terrain cycle, go cart, 5hp, go-kart, for sale, small gas engine parts, snowmobile, ATC, ATV, Vintage, gocart. Let's block ads! (Why?)