Fuel injection and four-stroke engines ... two-stroke enduros, like a few in the 125cc and 144cc–200cc displacement range have made the switch to electronic fuel injection (EFI), but the 250cc ...

The latest crop of 250cc and 300cc two-stroke motocross ... features that are seen on the updated liquid-cooled 249cc two-stroke engine are electronic fuel injection (EFI), electric start, and ...

It’s an Open Source Two-Stroke Diesel Engine that’s easy for anyone to ... with the intent of scaling the design up to 125cc and 250cc. So far, [Shane] has about 30 hours of simple CAD work ...