Yamaha YP400T Service Manual page 223

CAMSHAFTS
8. Turn:
• crankshaft
(turn the primary sheave nut on the left side
of the crankshaft several turns counter-
clockwise)
9. Check:
• "I" mark
Make sure the "I" mark on the generator
rotor is aligned with the stationary pointer
on the generator rotor cover.
• camshaft sprocket punch marks
Make sure the punch marks on the cam-
shaft sprockets are aligned with the cylinder
head mating surface.
Out of alignment → Adjust.
Refer to the installation steps above.
10.Measure:
• valve clearance
Out of specification → Adjust.
Refer to "ADJUSTING
CLEARANCE" in chapter 3.
5 - 16
ENG
THE VALVE