YD-2, the first Yamaha motorcycle which had an electric start, had a 250cc, twin cylinder, 2-stroke engine and a monocoque frame.

Some 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 level has enough of a selection to ...

Yamaha bupd the YZ250 with the same engine 250cc liquid-cooled reed-valve-inducted two-stroke engine is lightweight, compact and features an incredibly wide, hard-hitting powerband. New 270mm ...

The first 4-stroke to ever win a supercross race in the premier 250cc division was a YZ400F ... displacement 4-strokes to ...