Inspect tire every 6 000 km (4 000 miles, 12 months)
Tire tread condition
Operating the motorcycle with excessively worn tires will decrease riding stability and consequently invite a dangerous situation. It is highly recommended to replace a tire when the remaining depth of tire tread reaches the following specification.
Special tool
: 09900–20805 (tire depth gauge)
Tire tread depth (service limit) front: 1.6 Mm (0.06 In) rear: 2.0 Mm (0.08 In)

Tire pressure
If the tire pressure is too high or too low, steering will be adversely affected and tire wear increased. Therefore, maintain the correct tire pressure for good roadability, or shorter tire life will result. Cold inflation tire pressure is as follows.
Cold inflation tire pressure

Caution
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Tire type bridgestone
Brake system inspection
Steering system inspectionInjection timing description
Injection time (injection volume)
The factors to determine the injection time include the basic fuel injection
time, which is calculated on the basis of the
intake air pressure, engine speed and throttle opening angle, and various
compensations. These compensations are
determined according to ...
Rear turn signal light bulb replacement
Caution
when you touch the bulb with your bare
hands, clean the bulb with a cloth moistened
with alcohol or soap water to prevent
premature bulb failure.
Remove the rear turn signal light lens (1).
Replace the bulb (2).
Reinstall the removed parts
...
Throttle valve synchronization
Check and adjust the throttle valve synchronization
among four cylinders.
Start the engine and run it in idling condition
for
warming up.
Stop the warmed-up engine.
Lift and support the fuel tank. Refer to “fuel
tank
removal and installation” in section 1g (page ...