Honda TRX450R Service Manual page 115

LUBRICATION SYSTEM (After '05)
OIL PUMP
INSPECTION
Separate the left and right crankcase halves (page
16-11).
Measure the rotor tip clearance.
SERVICE LIMIT: 0.20 mm (0.008 in)
Measure the pump body clearance.
STANDARD: 0.15 - 0.21 mm (0.006 - 0.008 in)
Measure the Measure the oil pump side clearance.
clearance with the
gasket installed. STANDARD: 0.04 - 0.13 mm (0.002 - 0.005 in)
Assemble the left and right crankcase halves (page
16-25).
6-9