HOME 3.5 OIL PRESSURE OIL PRESSURE INDICATOR LAMP NOTE Remove MAP sensor and horn for additional clearance if needed. See Figure 3-4 .The red oil pressure indicator lamp illuminates to indicate improper circulation of the engine oil. The lamp illuminates when the ignition is first turned on (before the engine is started), but should be extinguished once the engine is run- ning. 2. Remove oil pressure switch from crankcase. 3. Attach OIL PRESSURE GAUGE (Part No. HD-45308) to ADAPTER (Part No. HD-45309). 4. Install in oil pressure switch mounting hole. NOTES • When checking oil pressure after engine rebuild, unplug fuel pump connector at fuel pump to verify oil pressure before engine starts.
If the oil pressure indicator lamp remains lit, always check the oil supply first. If the oil supply is normal and the lamp is still lit, stop the engine at once and do not ride further until the trouble is located and the necessary repairs are made. Failure to do so may result in engine damage. (00157a) • Engine oil should be at normal operating temperature 70° C (158° F) for an accurate reading. If the indicator lamp is not extinguished, it may be the result of a low oil level or diluted oil supply. A defect in the lamp wiring, faulty oil pressure sending unit, damaged oil pump, plugged 5.
Oil pressure should be 3-6.5 bar (43-94 psi) at 3000 RPM and normal operating temperature of 70° C (158° F). Operating oil pressure is checked as follows: 1. Fill crankcase to proper level. Figure 3-6. Oil Pressure Gauge Adapter 2009 VRSC Service: Engine 3-13 oil filter element, incorrect oil viscosity, broken or weak sp in the oil pressure relief valve and/or damaged or incorre installed o-rings in the engine may also cause the indic lamp to remain on. To troubleshoot the problem, always check the engine oil l first. If the oil level is OK, check oil pressure. ring ctly sm05091 ator evel Figure 3-5. Oil Pressure Gauge sm00938 sm04986 Figure 3-4.
Oil Pressure Indicator Lamp (typical) CHECKING OIL PRESSURE PART NUMBER TOOL NAME HD-45308 OIL PRE SSURE GAUGE HD-45309 ADAPTE R