Honda CRF450R Owner's Manual page 48

4. SERVICE AND MAINTENANCE
Connect the radiator hose to the cylinder head and
tighten the radiator hose clamp securely.
(1) RADIATOR HOSE
(2) RADIATOR HOSE CLAMP
Install the shims and cam shaft holder assembly (page
34).
Install the spark plug with a spark plug wrench until
finger tight, then tighten with a spark plug wrench until
the sealing gasket is compressed (1/2 turn to compress
a new spark plug gasket, 1/8 – 1/4 turn to compress a
spark plug with a used gasket).
(1) SPARK PLUG
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Install the crankshaft hole cap (page 38).
Install the cylinder head cover (page 38).
Install the ignition coil, ground terminal, ignition coil
bolts and ignition coil nut.
Connect the primary wire and spark plug cap.
(1) IGNITION COIL
(2) GROUND TERMINAL
(3) IGNITION COIL BOLTS
(4) IGNITION COIL NUT
(5) SPARK PLUG CAP
(6) PRIMARY WIRE
Install a new exhaust pipe gasket, exhaust pipe and
exhaust pipe joint nuts and tighten to the specified
torque.
TORQUE: 15 lbf ft (21 N m, 2.1 kgf m)
(1) EXHAUST PIPE GASKET
(2) EXHAUST PIPE
(3) EXHAUST PIPE JOINT NUTS
Install the carburetor (page 62) .
Install the subframe and muffler (page 19).
Install the fuel tank (page 18).
Install the seat (page 17).