Honda CRF250X Owner's Manual & Competition Handbook page 86

250X_060-083.qxd 08.7.3 10:12 ページ80
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.
Install the washers and cylinder head nuts (4).
Tighten the cylinder head nuts to the specified
torque:
39 N·m (4.0 kgf·m, 29 lbf·ft)
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) cylinder head
(4) cylinder head nuts/washers
80
Servicing Your Honda
4. Install the cylinder bolt (5), cylinder head
bolts (6) and tighten them to the specified
torque:
10 N·m (1.0 kgf·m, 7 lbf·ft)
(6)
(5)
(5) cylinder bolt
(6) cylinder head bolts
(3)
5. Install the engine hanger plates (7), clutch
cable guide (8), engine hanger nuts/bolts (9)
of the frame side and engine hanger nut/bolt
(10) of the engine side.
Tighten the engine hanger nut to the specified
torque:
frame side: 34 N·m (3.5 kgf·m, 25 lbf·ft)
engine side: 54 N·m (5.5 kgf·m, 40 lbf·ft)
(7)
(8)
(9)
(10)
(7) engine hanger plate
(8) clutch cable guide
(9) engine hanger nuts/bolts of the frame side
(10) engine hanger nut/bolt of the engine side