4. LUBRICATION SYSTEM                                                  MXU 550EXi/MXU500i



                                                                      Oil Pressure Relief Valve
 OIL PRESSURE RELIEF VALVE
 REMOVAL

 Remove the right crankcase (refer to the
 "RIGHT                    CRANKCASE
 REMOVAL/INSTALLATION" section in
 the chapter 11).

 Remove the pressure relief valve and O-ring
 from the right crankcase.

                                                         O-ring




                                                                               Piston
 INSPECTION

 Check the operation of the pressure relief
 valve by pushing on the piston.



 INSTALLATION

 Apply oil to a new O-ring and install the
 pressure relief valve groove, and install the
 relief valve to the right crankcase.

                                                 Oil Pressure Relief Valve




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