dinkstreet 125 Workshop-manual : Page 58

          4. LUBRICATION SYSTEM                                                           DOWNTOWN 125i



 SERVICE INFORMATION

 GENERAL INSTRUCTIONS
 · The maintenance of lubrication system can be performed with the engine installed in the frame.
 · Drain the coolant before starting any operations.
 · Be careful when removing and installing the oil pump not to allow dust and foreign matters to
   enter the engine and oil line.
 · Do not attempt to disassemble the oil pump. The oil pump must be replaced as a set when it
   reaches its service limit.
 · After the oil pump is installed, check each part for oil leaks.


 SPECIFICATIONS                                                                Unit: mm
                                                                 Standard
 Inner rotor-to-outer rotor clearance         0.15
 Outer rotor-to-pump body clearance           0.150.2
 Rotor end-to-pump body clearance             0.040.09

 ENGINE OIL
                        At disassembly:       1.2 liter
 Engine Oil Capacity
                        At change:            1.0 liter
 Recommended Oil                              SAE15W40       API: SJ


 TROUBLESHOOTING
 Oil level too low                                    Poor lubrication pressure
 · Natural oil consumption                            · Oil level too low
 · Oil leaks                                          · Clogged oil filter or oil passage
 · Worn piston rings                                  · Faulty oil pump
 · Worn valve guide
 · Worn valve guide seal


 Oil contamination
 · Oil not changed often enough
 · Faulty cylinder head gasket
 · Loose cylinder head bolts




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