Yamaha YZ250(V) Owner's Service Manual page 332

CDI MAGNETO
2. Install:
9 Woodruff key 1
9 Rotor 2
NOTE:
9 Clean the tapered portions of the crankshaft
and rotor.
9 When installing the woodruff key, make sure
that its flat surface a is in parallel with the
crankshaft center line b.
9 When installing the rotor, align the keyway c of
the rotor with the woodruff key.
3. Install:
9 Plain washer 1
9 Nut (rotor) 2
Use the rotor holding tool 3.
Rotor holding tool:
YU-1235/90890-01235
4. Adjust:
9 Ignition timing
Ignition timing (B.T.D.C.):
0.18 mm (0.007 in)
Refer to "IGNITION TIMING CHECK" sec-
tion in the CHAPTER 3.
5. Tighten:
9 Screw (stator) 1
6. Check:
9 Ignition timing
Re-check the ignition timing.
4-58
ENG
56 Nm (5.6 m•kg, 40 ft•lb)
7 Nm (0.7 m•kg, 5.1 ft•lb)