Suzuki DF25/DF30 Four Stroke Service Manual, Page 64Get this manual
ENGINE CONTROL 3-13
LOW OIL PRESSURE CAUTION SYSTEM
The low oil pressure caution control activates when internal engine oil lubricating pressure is 49kPa (0.5 kg cm2) or lower, during engine operationWhen the oil pressure is higher than the preset value of 49kPa (0.5 kgcm2), the oil pressure switch is OFF (no continuity)When the oil pressure decreases below this preset value, the oil pressure switch is on (continuity) and the low oil pressure caution activatesThe low oil pressure caution control operates as follows The caution lamp turns on The caution buzzer sounds(Remote control model) If the engine speed is higher than 3000 rmin, the over-rev caution control activatesThis interrupts the ignition and automatically lowers engine speed to approximately 3000 rminTo cancel the low oil pressure caution control, immediately stop the engine and check that engine oil level is at the specified levelIf insufficient, replenish