Piston/Piston Rings/Piston Pin - Honda CRF250X 2007 Owner's Manual & Competition Handbook

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 engine oil (page 44).
3. Drain the radiator coolant after cooling the
motorcycle (page 141).
4. Remove the seat and fuel tank (pages 36,37).
5. Lift the subframe to the upright position (page
39).
6. Remove the carburetor (page 130).
7. Remove the exhaust pipe (page 64).
8. Disconnect the air suction (1) and vacuum
hoses (2).
9. Remove the air supply pipe bolt (3), PAIR
control valve bolts/nuts (4) and PAIR control
valve (5).
(1)
(5)
(3)
(1) air suction hose (4) PAIR control valve bolts/nuts
(2) vacuum hose (5) PAIR control valve
(3) air supply pipe bolt
74
Servicing Your Honda
10.Disconnect the direct ignition coil (5).
11.Remove any dirt around the spark plug base.
(5) direct ignition coil
12.Remove the cylinder head cover (page 66).
13.Remove the spark plug (6).
(4)
(2)
(6) spark plug
(5)
(6)
14.Position the piston to top dead center on the
compression stroke (page 66).
Remove the camshaft (page 68).
15.Loosen the radiator hose clamp (7) and
disconnect the radiator hose (8).
(8)
(7) radiator hose clamp
(8) radiator hose
(7)