Suzuki Marauder GZ-250 is almost same with Marauder 125, but Marauder 250 come with more power, more performance and it's because the 250cc of engine displacement. It's more than Marauder 125cc.
Here is the Suzuki Marauder GZ-250 Specs
Suzuki Marauder 250 USA Specification :
Engine
Bore Stroke: 72.0 mm (2.835 in) x 61.2 mm (2.409 in)
Compression Ratio: 9.0 : 1
Engine: 249 cc (15.2 cu. in), 4-