Honda CRF50F 2004-2015 Service Manual page 86

CYLINDER HEADIVALVES
If BI/her ,ocker arm
reqUIres S9fV/Ce or
replacement
mspecl rhe cam
lobes for sconng,
chipping
or
flil t
spats
7-10
ROCKER ARM / SHAFT
Inspect the rocker arm slipper surfaces for wear or
damage.
Also check that the oil holes are nol clogged.
Measure the rocker arm 1.0.
SERVICE LIMIT: tN / EX: 10.10
mm
(0.398
in)
Inspect the rocker arm shaft for wear or damage.
Measure the O.O.of the rocker arm shaft.
SERVICE LIMIT: IN/ EX: 9.91 mm (0.390 in)
VALVE SPRING
Measure the free length of the valve springs.
SERVICE LIMIT: IN/ EX : 31.8 mm (1.25 in)
Replace the springs if they ere shorter than the ser-
vice Jimit.
VALVE
Inspect each valve for bending, burning o r abnor-
mal stem wear.
Check valve movement in the guide.
Measure and record each valve stem 0 .0 .
SERVICE LIMIT: IN/ EX: 4.92 mm (0.194 in)