There are various brands of outboard engines and several types of hp/pk. There are 2 strokes and 4 strokes.There are Honda, Suzuki, Yamaha, Parsun, Mercury, Evinrude, and Tohatsu brands of Outboard Engines.HP / Pk starting from 2.5 hp - 350 Hp.There are fuels that use gasoline and kerosene.