Honda CRF450R Owner's Manual page 47

Route the cam chain through the cylinder head.
Install the cylinder head.
CAUTION:
• Do not damage mating surfaces when installing the
cylinder head.
Apply engine oil to all cylinder head nut threads.
Install the washers and cylinder head nuts and tighten
to the specified torque.
TORQUE: 43 lbf ft (59 N m, 6.0 kgf m)
CAUTION:
• Do not let the washers and nuts fall into the crank-
case.
NOTE:
• Tighten the cylinder head nuts in a criss-cross pat-
tern in 2 or 3 steps.
(1) CYLINDER HEAD
(2) CYLINDER HEAD NUTS/WASHERS
Install the cylinder bolt and cylinder head bolts to the
specified torque.
TORQUE: 7 lbf ft (10 N m, 1.0 kgf m)
(1) CYLINDER BOLT
(2) CYLINDER HEAD BOLTS
Install the left engine hanger plate, right engine hanger
plate and engine hanger B bolts and tighten the engine
hanger B bolts until lightly contact the frame.
Install the engine hanger A bolt, fuel hose guide, left
collar, right collar and engine hanger nut and tighten
the engine hanger nut until it lightly contacts the en-
gine hanger plates.
Tighten the engine hanger B bolts.
TORQUE: 20 lbf ft (26 N m, 2.7 kgf m)
Tighten the engine hanger nut.
TORQUE: 40 lbf ft (54 N m, 5.5 kgf m)
(1) LEFT ENGINE HANGER PLATE
(2) RIGHT ENGINE HANGER PLATE
(3) ENGINE HANGER B BOLTS
(4) ENGINE HANGER A BOLT
(5) FUEL HOSE GUIDE
(6) LEFT COLLAR
(7) RIGHT COLLAR
(8) ENGINE HANGER NUT
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