PERIODIC MAINTENANCE3-28f. Tighten the oil check bolt to specification.g. Install the bottom side cowling and bottomcenter cowling.Refer to “GENERAL CHASSIS” on page 4-1.▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲EAS20820MEASURING THE ENGINE OIL PRESSURE1. Check:• Engine oil levelBelow the minimum level mark → Add therecommended engine oil to the properlevel.2. Start the engine, warm it up for severalminutes, and then turn it off.ECA13410When the engine is cold, the engine oil willhave a higher viscosity, causing the engineoil pressure to increase. Therefore, be sureto measure the engine oil pressure afterwarming up the engine.3. Remove:• Engine oil pressure check point plug “1”(Bottom of the crankcase)WARNINGEWA12980The engine, muffler and engine oil areextremely hot.4. Install:• Oil pressure gauge “1”• Adapter “2”5. Measure:• Engine oil pressure(at the following conditions)Out of specification → Adjust.6. Install:• Engine oil pressure check point plugTIPLubricate the O-ring of the engine oil pressurecheck point plug with a thin coat of lithium-soap-based grease.Engine oil check bolt20 Nm (2.0 m·kgf, 14 ft·lbf)Oil pressure gauge set90890-03120orOil pressure adapter B90890-03124Pressure gauge90890-03153YU-03153Oil pressure (hot)120.0 kPa/1200 r/min (1.20 kgf/cm²/1200 r/min, 17.4 psi/1200r/min)Oil temperature60.0–80.0 °C (140.00–176.00°F)Engine oil pressure Possible causesBelow specification• Faulty oil pump• Clogged oil filter• Leaking oil passage• Broken or damagedoil sealAbove specification• Leaking oil passage• Faulty oil filter• Oil viscosity toohigh