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 playDiagnostic information and procedures
Engine lubrication symptom diagnosis
Oil pressure check
Check the engine oil pressure periodically. This will give
a good indication of the condition of the moving parts.
Note
before checking the oil pressure, check the
following.
Oil level (refer to “engine oil and fi ...
Fuel level gauge inspection
Inspect the fuel level gauge in the following procedures:
remove the fuel pump. Refer to “fuel pump disassembly and assembly” in
section 1g .
Measure the resistance at each fuel level gauge in
float position. If the resistance is incorrect, replace
fuel level gauge with a ne ...
Steering damper maintenance
Keep the steering damper
shaft 1 clean at all times.
Wipe off any oil residue with a
cloth.
Do not confuse the grease-like
residue on the steering damper's
shaft with an oil leak. Collection of
this residue is normal and is from
oil seal lubricant used in the
damper.
Yo ...