Kart ID Help, WHAT IS IT?

[Mark Loraine]

The engine is likely a tecumseh H30 3hp as indicated by the numbers stamped into the blower shroud. It has some value as a Rupp minibike motor although they used HS40 4hp engines, so selling the 4 cycle online can see you $100 and more closer to a 2 cycle engine. The old style smooth curved blower shrouds are the style most sought after the Rupp Roadster re builders want.
Restored 4 hp engines sell for as much as the MC91's do on ebay.

Good luck there Holland Patent!