Adjust the engine idle speed periodically on the engine at normal operating temperature.
To adjust the idle speed:

Engine oil and filter change
Throtile cable playOil pump inspection
Inspect the oil pump in the following procedures:
remove the oil pump. Refer to “oil pump removal and installation” .
Rotate the oil pump by hand and check that it moves
smoothly. If it does not move smoothly, replace the
oil pump assembly.
Caution
do not attempt t ...
Water hose inspection
Inspect the water hoses in the following procedures:
remove the side cowlings. Refer to “exterior parts
removal and installation” in section 9d (page 9d-
6).
Check the water hoses for crack, damage or engine
coolant leakage. If any defect is found, replace the
water hose wi ...
Exhaust control system construction
Excv cable no. 1 (Cl)
Excv cable no. 2 (Op)
When
loosening or tightening the pulley bolt, be sure to fix the
pulley with an adjustable wrench, or excva may get damaged.
5 N·m (0.5 Kgf-m, 3.5 Lbf-ft)
42 – 43 Mm (1.65 – 1.69 In)
60 – 61 Mm (2.36 – ...