vitality 50 2t 4t Workshop-manual : Page 69

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          4. LUBRICATION SYSTEM                             VITALITY 50


 OIL PUMP (2-STROKE)
 REMOVAL
 Do not allow foreign matters to enter the
   crankcase. Before removing the oil
   pump, clean the oil pump and crankcase
   surfaces.
 Remove the met-in box ( 13-5), spark
 plug cover ( 13-5), center cover ( 13-6).

 Disconnect the oil pump control cable (3)
 from the pump body.
 Disconnect the oil inlet line (1) from the oil
 pump.
 Then, disconnect the oil outlet line (2).

    Before disconnecting the oil line, clip
    the oil line to avoid oil flowing out and
    then plug the oil line after it is
    disconnected.


 Remove the two bolts and oil pump control
 cable plate (1).

 Pull up and remove the oil pump (2) from
 the crankcase.




 INSPECTION
 Remove the oil pump and inspect the
 following items:
 · Weakened O-ring (1)
 · Damage to crankcase mating surface
 · Damage to pump body
 · Control lever operation (2)
 · Oil leaks through oil seals
 · Worn or damaged pump pinion (3)

   Do not disassemble the oil pump which
   cannot be used after disassembly.



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