Desmodromic (type) with four valves per cylinder, operated by eight rocker arms (4 opening rockers and 4 closing rockers) and two overhead camshafts. It is operated by the crankshaft through spur gears, belt rollers and toothed belts.
Desmodromic timing system (fig. 159)

Engine
Performance dataAbs disabled information not displayed
Fault codes
Dds: displays a fault code described in the description of the abs system.
Dashboard: no fault code displayed.
Wiring diagram
Checks
The abs fault indicator indicates the occurrence of one or more faults in the
antilock brake system, or if the system itself
has been disable ...
Rear wheel
Right-hand wheel nut
Washer
Spacer
Valve
Wheel
Circlip
Spare parts catalogue
Diavel abs front and rear wheels
Diavel carbon
abs
front and rear wheels
Important
Bold reference numbers in this section identify parts not shown in the
figures alongside the text, but which can ...
Noise and exhaust emission control
system information
Source of emissions
The combustion process produces carbon monoxide and
hydrocarbons. Control of hydrocarbons is very important
because under certain conditions, they react to form
photochemical smog when subjected to sunlight.
Carbon monoxide does not react in the same way, but is
toxic. Duca ...