Honda 2010 CRF250R Service Manual page 271

CRANKCASE/CRANKSHAFT/TRANSMISSION /BALANCER
Apply engine oil to the cam chain and install it to the
timing sprocket.
Align the stopper
Install the cam chain stopper plate and tighten the bolt.
plate hole with the
cra nkcase boss.
Apply grease to a new counlershaft O-ring . and install it
~;:;:;;;~;;~~
to the counlershaft collar.
Install them to the countershaft.
Install the drive sprocket to the countershaft with its flat
~~~~~~~~~=~~~~~,~~
side facing out as shown.
~
Install the washer and collar with the "OUT SIDE"
1~~~~~~~~~E~~~~~~;~
marks facing out.
~
Install and tighten the drive sprocket bolt to the
specified torque while holding the drive sprocket using
the special tool.
TOOL :
Universa l ho lder 07725-0030000
TORQU E: 31 N'm (3.2
kgf'm, 23 IbHt)
12·17