Yamaha YP250R 2005 Service Manual page 220

VALVES AND VALVE SPRINGS
2. Lubricate:
3. Install:
NOTE:
Install the valve spring with the larger pitch a
facing up.
b Smaller pitch
4. Install:
NOTE:
Install the valve cotters by compressing the
valve spring with the valve spring compressor
and the valve spring compressor attachment
2.
5 - 27
• valve stem 1
• valve stem seal 2
(with the recommended lubricant)
Recommended lubricant
Molybdenum disulfide oil
• lower spring seat 1
• valve stem seal 2
• valve 3
• inner valve spring 4
• outer valve spring 5
• upper spring seat 6
• valve cotters 1
Valve spring compressor
90890-04019
Valve spring compressor
attachment
90890-04108
ENG
New