Suzuki DF25/DF30 Four Stroke Service Manual, Page 179Get this manual
7-62 POWER UNIT
ENGINE LUBRICATION SYSTEM
Acamshaft driven trochoid type pump provides engine oil to all power unit components requiring lubricationOil form the oil pan is drawn theough the oil strainer and passed through spin-on type oil filter before entering the main oil galleryA pressure regulator (relief valve) is positioned between the oil pump and oil filter maintaion oil pressure at constant levelFrom the main gallery, oil flow is deirected through either drilled internal passage or by splash method to those surface requiring lubricationENGINE OIL LUBRICATION CHART