kxr maxxer 250 300 Workshop-manual : Page 62

          4. LUBRICATION SYSTEM                                                                  ATV 300/250


 SERVICE INFORMATION
 GENERAL INSTRUCTIONS
 · The maintenance of lubrication system can be performed with the engine installed in the frame.
 · Use care 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 (in)

                        Item                                   Standard               Service Limit
             Inner rotor-to-outer rotor clearance   0.15 (0.006)                     0.2 (0.008)
  Oil pump Outer rotor-to-pump body clearance 0.150.2 (0.0060.008)                   0.25 (0.01)
             Rotor end-to-pump body clearance       0.040.09 (0.00160.0036)          0.12 (0.0048)


 TROUBLESHOOTING
 Oil level too low                                    Poor lubrication pressure
 · Natural oil consumption                            · Oil level too low
 · Oil leaks                                          · Clogged oil filter or oil passages
 · Worn or poorly installed piston rings              · Not use the specified oil
 · Worn valve guide or seal




                                                                                               4-2