A giant box appeared on the front porch sometime today. Inside it was another box. That box contained a box wrapped with US Customs tape. Inside that box was a mixture of styrene and a motor! 140cc Piranha Honda clone motor.
So yes, I pushed the easy button for Ratty. Instead of sorting through the junk motors I have sitting on the shelf, I ordered up a complete engine kit from tboltusa. The kit comes with a 140cc Piranha engine, 22mm Mikuna Carb., intake manifold, CDI ignition, and some levers. HP will be dependent on the exhaust I run, but I figure 10-11hp. In comparison to the 4.5hp of the original pushrod 50cc engine.
Hopefully I'll get it mounted up this weekend.