Honda CRF250R 2018, Owner'S Manual

Page: 84 / 179

Piston/Piston Rings/Piston Pin
(cont’d)
Servicing Your Honda
79
Refer to Important Safety Precautions on page 23.
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 145).
3. Remove the seat and hang the fuel tank (pages
33, 34).
4. Remove the left and right mufflers (page 115).
5. Remove the left and right exhaust pipes
(page 118).
6. Remove the subframe (page 37).
7. Remove the spark plug (page 67).
8. Remove the cylinder head cover (page 68).
9. Set the piston at TDC on the compression
stroke (page 69).
10. Remove the cam chain guide, camshaft holder,
intake cam sprocket, camshafts and shims
(page 70).
11. Disconnect the ECT sensor connector (1).
12. Pull the harness band clip (2) while pressing
both side of the anchor and disconnect it.
13. Loosen the left radiator hose clamp screw (3)
and disconnect the left radiator hose (4).
14. Loosen the right radiator hose clamp screw (5)
and disconnect the right radiator hose (6).
15. Loosen the insulator band screw (7) and pull
the throttle body (8) out from the insulator (9).
Do not hang the throttle body. Support it with a
suitable strap.
Cylinder Head Removal
(1) ECT sensor connector
(2) harness band clip
(3) left radiator hose clamp screw
(4) left radiator hose
(5) right radiator hose clamp screw
(6) right radiator hose
(1)
(4)
(3)
(2)
(6)
(5)
(7) insulator band screw
(8) throttle body
(9) insulator
(7)
(8)
(9)