Yamaha TT-R50E Manuel D'atelier Du Proprietaire page 230

VALVES AND VALVE SPRINGS
ASSEMBLY AND INSTALLATION
1. Apply:
2. Install:
NOTE:
Install the valve springs with the larger pitch a
facing upwards.
b Smaller pitch
3. Install:
NOTE:
While compressing the valve spring with a
valve spring compressor and attachment 1
install the valve cotters.
4. To secure the valve cotters onto the valve
CAUTION:
Hitting the valve tip with excessive force
could damage the valve.
4 - 22
• Molybdenum disulfide oil
(onto the valve stem and valve stem seal)
• Valve stem seats
New
• Valves
• Valve springs
• Valve spring retainers
• Valve cotters
Valve spring compressor:
YM-04019/90890-04019
Valve spring compressor attach-
ment:
YM-04108/90890-04108
stem, lightly tap the valve tip with a piece of
wood.
ENG