Honda CRF450R Owner's Manual page 92

11. Connect the breather tube A (22) and B (23).
Connect the IAT sensor connector (24).
(22)
(24)
(23)
(22) breather tube A
(23) breather tube B
(24) IAT sensor connector
12. Connect the radiator hose (25) to the water
hose joint (26) of the cylinder head.
(25)
(26)
(25) radiator hose
(26) water hose joint
13. Tighten the radiator hose clamp screw (27) as
illustrated below.
0 – 0.04 in
(0 – 1.0 mm)
(27)
(27) radiator hose clamp screw
14. Connect the ECT sensor connector (28).
(28)
(28) ECT sensor connector
Piston/Piston Rings/Piston Pin
15. Install the ignition coil (29) and tighten the
ignition coil bolts (30).
Connect the ignition coil connectors (31).
(29)
(31)
(30)
(29) ignition coil
(30) ignition coil bolts
(31) ignition coil connectors
16. Install the shims, valve lifters, camshaft and
camshaft holder (page 72).
17. Install the crankshaft hole cap (page 74).
18. Install the cylinder head cover (page 75).
19. Install the spark plug (page 66).
20. Install the exhaust pipe (page 103).
21. Install the subframe (page 37) and left and
right mufflers (page 101).
22. Install the fuel tank and seat (pages 33, 35).
23. Fill and bleed the cooling system (page 145).
Check for the following:
– compression leaks
– abnormal engine noise
– secondary air leaks
– exhaust gas leaks
– coolant leaks
– oil leaks
Servicing Your Honda
85