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 playSteering components
Steering stem head nut
Steering stem upper bracket
Steering stem lock-nut
Washer
Steering stem nut
Dust seal cover
Dust seal
Steering stem upper bearing
Steering stem lower bearing
Lower seal
Steering stem lower bracket
Steering stem lo ...
Special tools and equipment
Recommended service material
Note
required service material is also described in the following.
“Starter motor components”
Special tool
...
Pair system inspection
Inspect pair system
every 12 000 km (7 500 miles, 24 months)
Inspect the pair (air supply) system periodically. Refer to “pair system
inspection” in section 1b .
Throttle valve synchronization
Inspect throttle valve synchronization
initially at 1 000 km (600 miles, 2 months) (e-33 only)
and ...