The engine is equipped with a pcv system to prevent discharging crankcase emissions into the atmosphere. Blow-by gas in the engine is constantly drawn into the crankcase, which is returned to the combustion chamber through the pcv (breather) hose, air cleaner and throttle body.

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Fuel injection system description
Exhaust emission control system
descriptionPillion footrest construction
Pillion footrest
Spring
Ball
E-ring
Washer
O-ring
Footrest pin
Apply grease.
Do not reuse.
...
Special tools and equipment
Recommended service material
Note
required service material is also described in the following.
“Exhaust system components”
Special tool
...
Precautions
Precautions for maintenance
The “periodic maintenance schedule chart” lists the recommended intervals for
all the required periodic service work
necessary to keep the motorcycle operating at peak performance and economy.
Maintenance intervals are expressed
in terms of kilometers, miles and mo ...