Usa models are equipped with an additional system with an evaporative emissions canister that prevents fuel fumes from being discharged into the atmosphere.
The breather hose (4) is connected to the canister filter (1); when the fuel has been filtered, it is returned through the hose (2) to the horizontal (a) and vertical (b) intake manifolds via the hoses (2a) and (2b). Drainage pipe (c) and the hose (5) vent to the ground.
For correct positioning of the connection hoses consult the indications given below.

Evaporative emissions canister
Removal of the evaporative emissions canisterRemoval of the crankshaft/connecting rods assembly
After separating the crankcase halves, withdraw the crankshaft (6) complete
with connecting rods (2).
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Steering head: front fork
Screw
Screw
Steering head
Bottom yoke
Left fork leg assembly
Right fork leg assembly
Counter nut
Damper assembly
Bush
Spring
Preload tube
Collar
Washer
Top cap assembly
Screw
Washer
Adjuster screw
Special washer
Fork tube + calliper unit
Dust cap
Sealin ...
Removal of the clutch master cylinder assembly
Warning
The clutch master cylinder manufacturer advises against servicing of
the clutch master cylinder (1) due to the safetycritical
nature of this component. Incorrect overhaul of this component could endanger
rider safety.
Maintenance operations of the master cylinder are limited to replac ...