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 playValve clearance inspection and adjustment
Inspect valve clearance
initially every 24 000 km (14 500 miles, 48 months)
Inspection
Valve clearance adjustment must be checked and
adjusted, a) at the time of periodic inspection, b) when
the valve mechanism is serviced, and c) when the
camshafts are removed for servicing.
Lift an ...
Specifications
Tightening torque specifications
Note
the specified tightening torque is described in the following.
“Chassis bolt and nut inspection”
Reference: for the tightening torque of fastener not specified in this
section, refer to “tightening torque list” in section 0c . ...
Gearshift shaft construction
Gearshift shaft
Washer
Snap ring
Gearshift shaft return spring
Gearshift cam drive plate
Gearshift plate return spring
8.5 N·m (0.85 Kgf-m,
6.0 Lbf-ft)
13 N·m
(1.3 Kgf-m, 9.5 Lbf-ft)
19 N·m
(1.9 Kgf-m, 13.5 Lbf-ft)
Apply ...