Yamaha 5HN1 Manuel D'atelier Du Proprietaire page 128

VALVE CLEARANCE ADJUSTMENT
3 - 10
6. Install:
Tappet cover (intake side) 1
18 Nm (1.8 m · kg, 13 ft · lb)
O-ring 2
New
7. Install:
Tappet cover (exhaust side)
18 Nm (1.8 m · kg, 13 ft · lb)
O-ring
New
Spark plug
13 Nm (1.3 m · kg, 9.4 ft · lb)
Timing plug
7 Nm (0.7 m · kg, 5.1 ft · lb)
Straight plug
7 Nm (0.7 m · kg, 5.1 ft · lb)
8. Install:
Air filter case
Air scoop (right)
INSP
ADJ