Yamaha YP250 Service Manual page 110

CAMSHAFT AND ROCKER ARMS
NOTE:
Bend the lock washer tabs along the bolt 3
flats.
NOTE:
Exhaust:
Install the rocker arm shaft (exhaust) complete-
ly pushed in.
NOTE:
Intake:
Insert the guide shaft (8 mm) 3 into the stud
bolt hole on the cylinder head to the rocker arm
shaft (intake).
Do not confuse the installation direction of
rocker arm shaft. Be sure to install the
threaded part facing outward.
4-14
2. Install:
S Plate 1
S Look washer 2
S Bolt 3
8 Nm (0.8 mSkg)
3. Apply:
S Molybdenum disulfide oil
(onto the rocker arm and rocker arm shaft)
Molybdenum disulfide oil
4. Install:
S Rocker arm 1
S Rocker arm shaft 2 (exhaust)
5. Install:
S Rocker arm 1
S Rocker arm shaft 2 (intake)
CAUTION:
ENG