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 pressure indicator inspection
Inspect the oil pressure indicator in the following
procedures:
Note
before inspecting the oil pressure switch, check if the engine oil level
is correct. Refer to “engine oil and filter replacement” in section 0b .
Remove the left side cowling. Refer to “exterior parts remov ...
Crankshaft thrust clearance inspection and
selection
Refer to “engine bottom side disassembly” (page 1d-
49).
Refer to “engine bottom side assembly” .
Inspection
With the crankshaft’s right-side and left-side thrust
bearings inserted into the upper crankcase.
Measure the thrust clearance “a” between the leftside
thrust bearing and ...
Exterior parts construction
Upper cowling bracket
: set the punch mark to the front and upper side.
Rear view mirror cushion
: set the dent side to inside.
To frame
To headlight assembly
To sprocket cove
To side-stand bracket
...