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 canisterCylinder compression test
Note
The on-screen icons used during this procedure are explained in a table at
the end of this section.
Engine performance is directly correlated to the pressure that can be
measured in the combustion chambers of the two
cylinders. Pressure which is too high/low or an excessive difference be ...
Removal of the camshafts
Unscrew and remove the screws (7) and the o-rings (8) from the cylinder head
covers.
Remove the cylinder head cover (6).
Remove the gaskets (4) and (9).
Repeat the same procedure for the other cylinder head cover. Unscrew the
screws (3) securing the camshaft supports.
Withdra ...
Front wheel
Nut
Washer
Left spacer
Sealing ring
Bearing
Front wheel rim
Inner spacer
Screw
Right spacer
Front wheel shaft
Valve
Spare parts catalogue
Diavel abs front and rear wheels
Diavel carbon
abs
front and rear wheels
Important
Bold reference numbers in this section iden ...