Ducati MONSTER 821 Workshop Manual page 859

Intake valve diameter
Exhaust valve diameter
Working on the vertical head, position the wiring cover (2) and tighten the three screws (1).
Connect the spark plug caps
Position the ABS tubes and wiring in the cable ring fixed on the vertical head
Position the secondary air system pipes
Refit the airbox, the throttle body, the blow by and the oil breather pipe
Restore and tighten the water radiator lower retainer and move it towards the front wheel
radiator).
Refit the fuel tank (Refitting the fuel
Refit the seat (Refitting the
(Replacing the spark
plugs).
(Refitting the secondary air
tank).
seat).
Opening 58° B.B.D.C.
Exhaust
Closing 7° A.T.D.C.
35.5 mm
28.8 mm
system).
(Refitting the airbox and throttle
859
(Routing
wiring/hoses).
body).
(Refitting the water
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