Piston/Piston Rings/Piston Pin; Cylinder Head Removal - Honda CRF450R Manual Del Propietario Y Guía De Competiciones

Piston/Piston Rings/Piston Pin

Cylinder Head Removal

1. Clean the area above the engine before
disassembly to prevent dirt falling into the
engine.
2. Drain the radiator coolant after cooling the
motorcycle (page 147).
3. Remove the seat and hang the fuel tank (pages
37, 38).
4. Remove the muffler (page 105) and subframe
(page 40).
5. Remove the exhaust pipe (page 107).
6. Remove the spark plug (page 71).
7. Remove the cylinder head cover (page 72).
8. Set the piston at TDC on the compression
stroke (page 72).
9. Remove the camshaft holder, camshaft, valve
lifters and shims (page 74).
10. Disconnect the ignition coil connectors (1) and
unclamp them from the clamp (2).
Remove the bolt and washer (3).
(3)
(2)
(1)
(1) ignition coil connectors (3) bolt and washer
(2) clamp
11. Remove the bolt (4), ground wire (5) and
ignition coil/stay (6).
(4) bolt (6) ignition coil/stay
(5) ground wire

Piston/Piston Rings/Piston Pin

12. Disconnect the ECT sensor connector (7).
(7)
(7) ECT sensor connector
13. Loosen the radiator hose clamp screw (8) and
disconnect the radiator hose (9).
(4)
(5)
(8)
(6)
(8) radiator hose clamp screw
(9) radiator hose
(9)
(cont'd)
81
Servicing Your Honda