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 playSpecifications
Service data
Valve + guide
unit: mm (in)
Camshaft + cylinder head
unit: mm (in)
Cylinder + piston + piston ring
unit: mm (in)
Conrod + crankshaft
unit: mm (in)
Balancer
unit: mm (in)
Oil pump
Clutch
unit: mm (in)
Drive train
unit: mm (in) except ratio
...
Evaporative emission control system
diagram (only for e-33)
Fuel tank
Fuel-vapor separator
Fuel pump
Fuel feed hose
Fuel shut-off valve
Iap sensor
Surge hose
Evap canister
Purge hose
Evap system purge control solenoid valve
Fue
Hc vapor
Fresh air
Vacuum
...
Cam chain tensioner inspection
Inspect the cam chain tensioner in the following
procedures:
remove the cam chain tensioner. Refer to “cam chain guide / cam chain
tensioner removal and installation” .
Check the contacting surface of the cam chain
tensioner. If it is worn or damaged, replace it with a
new ...