Honda TRX450R Service Manual page 104

LUBRICATION SYSTEM ('04 - '05)
Install the guide plate by aligning the hole with the
boss and tighten the bolt securely.
Coat a new O-ring with oil and install it into the
pressure relief valve groove.
Install the pressure relief valve into the left crank-
case.
Apply locking agent to the bolt threads.
Install the set plate and tighten the bolt securely.
Install the oil pump driven gear and new snap ring
onto the oil pump shaft.
Install the balancer (page 15-9).
SET PLATE H RELIEF VALVE
OIL PUMP DRIVEN GEAR
5-6