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. 4-5