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Art. 6112811 (Fig. 3)
Important for Minarelli and Yamaha Engines
In the Minarelli-Yamaha Over Range units, spacers must be
fitted between the bearing and the clutch bell stop point.
2mm thick spacers
(1)
are usually suff icient to ensure smooth
rotation between clutch bell and clutch.
However, if a thickness of 2 mm is insuff icient, the kit
includes an 0.5 mm shim (2), which can be fitted as an
additional spacer.
Procedure: fit the clutch bell (3), and tighten the new unit with
the nut (4), observing the vehicle manufacturer's instructions
on tightening torques.
Important for Minarelli Engines
In some cases, especially as regards old engines, the clutch
bell may touch the cover of the drive casing. We therefore
advise you to check if there are any contact areas (using
Prussian blue) and, if so, eliminate contact with an air mill.
Art. 6112812 - 6114745 (Fig. 3)
In the Minarelli-Yamaha Over Range units, 0.5 mm thickness
spacers (2), must be fitted between the bearing and the
clutch bell stop point to ensure smooth rotation between bell
and clutch.
Fit the clutch bell (3), and tighten the new unit with the nut
(4), observing the vehicle manufacturer's instructions on
tightening torques.
Art. 6115780 - 6115781 - 6115821 -
6116249 (Fig. 3)
0.5/1.5 mm thickness spacers (2), must be fitted between
the bearing and the clutch bell stop point to ensure smooth
rotation between bell and clutch.
Fit the clutch bell (3), and tighten the new unit with the nut
(4), observing the vehicle manufacturer's instructions on
tightening torques.
• Installation of MULTIVAR 2000 MHR speed variator
(Art. 5112800)
(Fig. 4)
» To install the new wider range variator on Minarelli and
Yamaha engines, you have to remove the components
of the electrical starting system located inside the drive
casing
(Fig. 5 -
6).
» Fit the cursors
(5)
on the cover
installation diagram of the variator, making sure you insert
it up to its stop point.
» Position the rollers
(4)
» Fit the cover
(6)
with cursors above the mobile split pulley
with rollers.
» Replace the original spacer with the Malossi one
inserted into the kit and insert it on the crankshaft
» Fit the hub
(2)
in the mobile split pulley and carefully
insert the entire unit on the crankshaft, making sure that
the rollers do not come out of their tracks.
» Install the entire variator unit up to its stop point
and locate the belt on the hub. Fit the fixed split pulley
supplied with the kit, the starting unit and the washer.
» Insert the tightening nut and screw it down with
your fingers.
» Loosen the belt, tighten it a mid-point, making sure that
when the crankshaft nut is tightened, the timing belt is
not tightened between the pulleys, thus de-synchronising
pack closure of the entire variator unit.
» Tighten the nut securing the variator on the
crankshaft, using the torque recommended by the
engine manufacturer.
• Finish installation by re-fitting the casing, taking care to
tighten all the cover screws to a 1.1 kgm torque.
Important:
Multivar 2000 is supplied complete and there is no need to fit
the cover or other parts from the original variator.
Covers on the original variators are grease retaining.
Multivar 2000 operates without grease, and moving parts are
built with self-lubricating materials - this is why Multivar does
not need a cover.
6
(6)
observing the
on the mobile split pulley (3).
(Fig.
(7)
(Fig.
7).
8),
(1)
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