Yamaha YBR125 Custom, Service Manual, Page: 93 / 218

ENG
Check and repair
Length of convex part of cam:
Exhaust:
A Standard: 25.841 25.941 mm
Limitation: 25.811 mm
B Standard: 21.050 21.150 mm
Limitation: 21.02 mm
3. Check:
Bearing
Jamming,swaying → Replacing
Rocker arm and rocker shaft
1. Check:
Contacting face of rocker arm and convex part of
cam
Adjusting device surface
Wearing, corrosive pitting, scratch, blueing
Replacement
Then check lubrication system
→
2. Measure:
Inner diameter of rocker arm a
Standard value of inner diameter of
rocker arm:
10.000 10.015 mm
Using limitation:
10.030 mm
Exceeding specification → Replacement
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