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 (25) from the exhaust valve (d) and remove the circlip (39).
Release the control cable (25) from the plate (c).

Remove the two retaining springs (16) and remove the central exhaust pipe (26).

Remove the retaining spring (16) and the upper exhaust pipe (19).

Loosen the screws (11) and remove the heat guard (13) from the upper exhaust pipe (19); keep the spacers (12).

Undo and remove the horizontal cylinder lambda probe (20).

Undo and remove the three fixing nuts (21) and remove the horizontal manifold (24) with the gasket (23).


Undo and remove the vertical cylinder lambda probe (20).

Undo and remove the three fixing nuts (21) and remove the manifold (22) with the gasket (23).

Unscrew the nuts (9) and remove the heat guard from the manifold (10).

Removing the silencer
Refitting the exhaust systemAlternator
It is equipped with a 12 v, 430 w generator, consisting of a fixed element
(stator, a) located on the generator cover and
of a movable element (rotor, b) fixed to the crankshaft.
Note
To check the battery charging system for faults, use the dds diagnosis
instrument and follow the instruct ...
Checking the camshafts and supports
Check the cam contact surfaces for scratches, grooves, steps and waving.
Worn cams are frequently the cause of poor timing, which leads to loss of engine
power.
Place the camshaft between two centres and check the run-out on the areas
indicated using two dial gauges.
Service limit: 0.1 ...
Reassembly of the crankcase halves
The crankcase halves must be in good condition and perfectly clean. The
mating surfaces must be perfectly flat and free
from burrs.
Overhauling the alternator-side crankcase half
The following parts must be present on the internal side of the crankcase
half:
Gearbox secondary shaft bearin ...