Honda CRF450X 2009, Руководство пользователя и соревновательное пособие

Страница: 78 / 184

72
Servicing Your Honda
HONDA O/M CRF450X (Eu) 3RMEY620 00X3R-MEY-6200
Valve Clearance
6. While holding the cam chain, rotate the
primary drive gear bolt (12) (crankshaft)
clockwise and align the punch mark (13) with
the index mark (14).
Make sure the piston is at TDC (Top Dead
Centre) on the compression stroke.
(12) primary drive gear bolt
(13) punch mark
(14) index mark
7. Install the cam chain (15) over the sprocket
without rotating the sprocket.
Place the cam sprocket (16) and align the
timing mark (17) on the cam sprocket with the
“
” mark (18) on the camshaft holder
assembly.
When installing the cam sprocket, position the
decompressor weight pin (19) toward the front
side.
8. Set the decompressor weight (20) by aligning
its hole (21) with out side weight pin (22) as
shown.
(15) cam chain (19) decompressor weight pin
(16) cam sprocket (20) decompressor weight
(17) timing mark (21) hole
(18) “ ” mark (22) out side weight pin
9. Clean and apply a locking agent to the cam
sprocket bolt (25) threads (coating width as
shown).
10.Temporarily install the cam sprocket bolt (25)
by aligning the bolt holes of the cam sprocket
and camshaft.
Rotate the primary drive gear bolt (crankshaft)
clockwise one turn and tighten the sprocket
bolt to the specified torque:
20 N·m (2.0 kgf·m, 15 lbf·ft)
Rotate the primary drive gear bolt (crankshaft)
clockwise one turn again and tighten the other
sprocket bolt to the specified torque (see
above).
Do not let the bolts fall into the crankcase.
NOTICE
(25) cam sprocket bolts
(12)
(13)
(14)
(18) (16) (17)
(15)
(20)
(21)
(22)
(19)
(25)
(25)
(23) 6.5
±
1.0 mm
(0.26
±
0.04 in)
(24) 1.0 – 2.0 mm
(0.04 – 0.08 in)
(23) coating width
(24) no coating width
(25) cam sprocket bolt