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 playRegulator / rectifier inspection
Inspect the regulator/rectifier in the following procedures:
turn the ignition switch off.
Disconnect the regulator/rectifier couplers. Refer to “regulator /
rectifier removal and installation” .
Measure the voltage between the terminals using the multi-circuit
tester ...
Accessory use
The addition of unsuitable accessories
can lead to unsafe operating
conditions. It is not possible
for suzuki to test each accessory
on the market or combinations of
all the available accessories; however,
your dealer can assist you in
selecting quality accessories and
installing them correc ...
Spark plugs
Your motorcycle comes equipped
with ngk cr9e or denso
u27esr-n spark plugs. To determine
if the standard spark plug is
right for your usage, check the
color of the plug's porcelain center
electrode insulator after motorcycle
operation. A light brown
color indicates that the plug is correct.
...