OWNER’S MANUAL & COMPETITION HANDBOOK - Page 83

For 2013 CRF450X.

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82 Servicing Your Honda
Piston/Piston Rings/Piston Pin
2. Route the cam chain through the cylinder
head (3).
Install the cylinder head.
NOTICE
Do not damage mating surfaces when installing
the cylinder head.
3. Apply engine oil to all cylinder head nut
threads and seating surface.
Install the cylinder head nuts/washers (4) and
tighten them to the specified torque:
49 lbf·ft (66 N·m, 6.7 kgf·m)
NOTICE
Do not let the washers and nuts fall into the
crankcase.
Tighten the cylinder head nuts in a criss-cross
pattern in two or three steps.
(4)
(3)
(3) cylinder head
(4) cylinder head nuts/washers
4. Install and tighten the cylinder bolt (5)
and cylinder head bolts (6) to the specified
torque:
7 lbf·ft (10 N·m, 1.0 kgf·m)
(6)
(5)
(5) cylinder bolt
(6) cylinder head bolts
5. Install the left engine hanger plate (7), right
engine hanger plate (8), clutch cable stay (9)
and engine hanger plate bolts (10) and tighten
the engine hanger plate bolts until the engine
hanger plates lightly contact the frame.
6. Install the engine hanger bolt (11), fuel hose
guide (12) and engine hanger nut (13) and
tighten the engine hanger nut until it lightly
contacts the engine hanger plates.
7. Tighten the engine hanger plate bolts to the
specified torque:
19 lbf·ft (26 N·m, 2.7 kgf·m)
Tighten the engine hanger nut to the specified
torque:
40 lbf·ft (54 N·m, 5.5 kgf·m)
(10)
(12)
(11)
(7)
(13)
(9)
(10)
(8)
(7) left engine hanger plate
(8) right engine hanger plate
(9) clutch cable stay
(10) engine hanger plate bolts
(11) engine hanger bolt
(12) fuel hose guide
(13) engine hanger nut
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