Malossi 3117559 Mode D'emploi page 20

reference mark visible on the
flywheel with the reference
mark visible on the plastic
(Fig. 3).
crankcase
• Fit the gearing chain
on the crown gear and
insert it on the camshaft,
aligning the reference line
(Fig. 2, part. 3)
with the
reference (Fig. 2, part.
• Tension the gearing chain
manually from the gearing
chain assembly opening and
check to ensure that the
crown gear is aligned with
the reference on the head. If
necessary, shift the gearing
chain by one tooth more or one
less on the crown gear.
• Be careful to check often to
ensure that the crankshaft is
not moving during the timing
of the camshaft from the
position indicated by the two
reference marks aligned as
shown in
• Proceed with chain adjuster
assembly tightening the 2 M6
screws on the cylinder and
using the screwdriver to turn
counterclockwise the locking
screw till complete locking.
• Turn in the 2 M6 screws on the
4).
camshaft, in order to block the
crown gear in its seat. Close
the 2 screws bolt applying the
tightening torque indicated
in the section entitled
"Assembly data".
• Using a socket wrench with
a T-shaped handle, and
intervening on the nut found
on the crankshaft and that
fastens the variator unit
make all the engine have 4-5
complete revolutions and bring
it back to the top dead centre,
aligning the references shown
Fig. 3.
20
in Fig. 3 and check to ensure
that the gearing chain crown
gear has remained aligned with
the reference mark on the head
(Fig. 2).
If the crankshaft is blocked during
the rotation, do not attempt
absolutely to force it under any
circumstances. Check the timing
of the timing system, which
evidently was not performed
properly. Then repeat the timing
process and follow meticulously
the procedure indicated
here above.
• After having checked to ensure
that the crankshaft is at the
top dead centre (Fig. 3)
the camshaft is positioned as
indicated in Fig. 2, check and if
necessary correct the exhaust
and intake valve for the proper
clearance. The value clearance
and