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 playIgnition system check
Remove the spark plugs and
reattach them to the spark
plug caps.
Put the engine stop switch in
the "" position and ignition
switch in the "on" position.
While holding a spark plug
with its base firmly against the
engine, push the electric
starter butt ...
Steering / steering damper related parts
inspection
Refer to “steering / steering damper removal and installation” .
Inspect the removed parts for the following
abnormalities:
Steering stem
Distortion of the steering stem and brackets.
Bearing
Bearing wear or damage
abnormal bearing noise
race wear or damage
&nbs ...
Drive chain cleaning and lubricating
Clean and lubricate drive chain
every 1 000 km (600 miles)
Clean and lubricate the drive chain in the following
procedures:
clean the drive chain with kerosine. If the drive chain
tends to rust quickly, the intervals must be
shortened.
Caution
do not use trichloroethyle ...