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.

|
Fuel injection system description
Exhaust emission control system
descriptionCrankcase breather (pcv) cover inspection
Inspect the crankcase breather (pcv) cover in the
following procedures:
remove the crankcase breather (pcv) cover. Refer to “crankcase breather
(pcv) hose / reed valve / cover removal and installation” .
Inspect the crankcase breather (pcv) cover for
carbon deposit. If carbon ...
Service data
Valve + guide
unit: mm (in
Camshaft + cylinder head
unit: mm (in
Cylinder + piston + piston ring
unit: mm (in)
Conrod + crankshaft
unit: mm (in)
Balancer
unit: mm (in)
Throttle body
...
Cushion rod removal and installation
Removal
Remove the right side cowling and side frame covers. Refer to “exterior
parts removal and installation” in section 9d .
Support the motorcycle with a jack to relieve load on
the cushion rod.
Remove the muffler chamber. Refer to “muffler / muffler chamber /
exhaust ...