
Drain the hydraulic fluid that is inside the front and rear braking system tubes by disconnecting them from the master cylinder and the calliper (sect. 4 -3, Changing the brake fluid).
Disconnect the connector (a) of the abs control unit (6).

Loosen the screws (16) that retain the abs control unit support (12) and remove it from the vehicle.

Undo the four special screw (17) fixing the pipes (10), (9), (8) and (7), on the abs control unit (6), removing the gaskets (11).
Warning
Every time that gaskets (11) are removed, they must be replaced with new gaskets (11).

Important
Do not open the abs control unit: if it is faulty, replace it.
Note
If it is necessary to replace one or more pipes, follow the instructions indicated in paragraph "flexible wiring/hoses positioning" of this section.
Replacing the rear phonic wheel sensor
Refitting the abs control unitRemoval of the exhaust system
Remove the silencer, as described in the paragraph "removing the silencer" of
this section.
Loosen the screws (28) and remove the exhaust by-pass valve cover (27).
Turn the exhaust valve pulley (a) to facilitate the throttle cable (25)
output.
Release the end fitting (b) of the cable ...
Valves - rocker arms
Closing rocker arm shaft
Opening rocker arm shaft
Opening rocker arm
Closing rocker arm (left)
Valve opening shim
Half rings
Valve closing shim
Sealing ring
Valve guide
Exhaust valve seat
Exhaust valve
Plug
Intake valve seat
Intake valve
Aluminium gasket
Closing ...
Specific tools for the engine
88713.2011.Tool to lock crankshaft at top dead centre
88713.2676 .Wrench for tightening cylinder head nuts
88713.2103 Stand for cylinder head assembly
88765.1657 Timing check tool
88713.1821 Wrench for tightening timing belt tensioner pulley shafts
88713.2861 Camshaft oi ...