Yamaha TT-R50E Manuel D'atelier Du Proprietaire page 218

CAMSHAFT AND ROCKER ARMS
REMOVAL POINTS
Rocker arm shaft
1. Remove:
NOTE:
Use a slide hammer bolt 1 and weight 2 to
slide out the rocker arm shafts.
INSPECTION
Camshaft
1. Measure:
ASSEMBLY AND INSTALLATION
1. Apply:
2. Install:
4 - 16
• Rocker arm shafts
Slide hammer bolt:
YU-01083-1/90890-01083
Weight:
YU-01083-3/90890-01084
• Cam lobes length a and b
Out of specification → Replace.
Cam lobes length limit:
Intake:
a 25.328 mm (0.9972 in)
b 20.934 mm (0.8242 in)
Exhaust:
a 25.186 mm (0.9916 in)
b 20.947 mm (0.8247 in)
• Molybdenum disulfide oil
(onto the camshaft cam lobe)
• Engine oil
(onto the camshaft bearing)
• Camshaft 1
ENG