Honda Metropolitan CHF50 Service Manual page 82

LUBRICATION SYSTEM
Measure the pump body clearance.
SERVICE LIMIT: 0.22 mm (0.009 in)
BODY CLEARANCE
Measure the side clearance using a straight edge
c i n c
and feeler gauge. biut
SERVICE LIMIT: 0.12 mm (0.005 in)
ASSEMBLY
Dip all parts in clean engine oil before assembly.
OIL PUMP DRIVEN GEAR
OIL PUMP BODY
OIL PUMP COVER
INNER ROTOR
SCREW
4-6