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MAIN FEATURES
Engine
Cylinder
disposition
Bore
Stroke
Displacement
Compression
ratio
Output
VALVE GEAR
2-cyllnder,
4-stroke
..
v ..
90'
mm
83
mm
78
cc
844
10,2
HP 80 SAE at 7300 rpm
D.H.V. push
rod operated
.
CARBURETION
2
Dell'Orto
Carburettors type
PHF
368 (0) rIght
PHF
368 (S) left.
LUBRICATION
Pressure,
by gear
pump.
Normal lubrication
pressure,
3,8
-:- 4,2
Kp
/
crn
2
(controlied
by relief
valve),
Wire gauze
and
cartridge oil filters.
Electrically
controlled oil pressure
gauge.
GENERATOR
(14 V - 20 A)
Front
on the crankshaft.
IGNITION
By
battery, with double contact
breaker
and
au-
tomatic advance.
Ignition
data:
Initial
advance (fixed)
8"
Automatic
advance
26"
Full
advance
34'
Contact
breaker point
gap
mm
0,37
-:- 0,43
n.
2
spark plugs
n.2 ignition coils, on the left side of frame.
STARTING
Electric
starter with electromagnetic
ratchet
control. Ring gear
bolted
on flywheel.
Starter button (START)
right
on the
handlebar.
TRANSMISSION
Clutch
:
Dry type. multiplates.
Lever
controlled
from
the
L/
H
side of the handlebar.
Primary
drive: via the gearbox
ratio
:
1
:
1,235
(Z
=
17/
21)
.
Gearbox
:
Five speeds.
Frontal
engagement. con-
stant mesh gears Cush drive incorporated.
Pe-
dal controlled from the
L/
H side of the motor-
cycle.
Ratio:
low
gear
1:
2
2nd gear
1
:
3,388
3rd gear
1
:
1,047
4th
gear
1:
0,869
5th gear
1: 0,750
(2
=
14/
28)
(2
=
18/
25)
(2
=
21
/
22)
(2
=
23/
20)
(2
=
28/
21)
Secondary Drive
:
cardan shaft
(bevel
gear set)
ratio
:
1
:
4.714
(Z
=
7/
33)
Overall gear ratio
(engine/
wheel)
low
gear
1 :11,643
2nd gear
1:
8,080
3rd gear
1
:
6,095
4th gear
1: 5,059
top gear
1
:
4,366
CYCLE
Frame: Duplex
cradle, tubular structure.
Suspension:
Telescopic front fork incorporat-
ing
sealed
hydraul
ic
dampers.
Rear swinging fork with externally adjustable
springs.
Wheels:
in
light
alloy with
rims
WM 3/2,15
-
18" front and rear.
Tyres:
Front
3,50
H -
18"
or
100/
90 H - 18"
Rear 4,00
H
-
18"
or
110/
90 H - 1S"
or
4,10V-1S"
Brak.s:
Front: Hydraul
ic
disc brake, twin
braking
cylin-
der
caliper. Hand lever controlled
from
the
R/
H
side
of
the handlebar.
Hydraulic
transmission
free from
rear
braking system.
Disc
0300
mm
Braking
cyl.
0
38
mm
Master
cyl.
0
12,7 mm
Rear: Hydraulic
disc
brake,
twin braking cylinder
caliper.
Pedal
lever controlled from the
R/
H
side
of the
motorcycle.
Disc
0242
mm
Braking cyl.
0
38
mm
Master cyl.
0
15,875 mm
The
rear brake is bound by a hydraulic transmis-
sion to a twin
fro
nt brake
featu
red
and dimen-
sioned like the hand controlled
one.
Dimension. and weights
Wheelbase (under
load)
Max. length
Max.
width
Max. height
Min
.
ground clearance
Ory
weight
PERFORMANCES
m
1,470
m 2,190
m
0,720
m 1,030
m
0,150
kg
198
Max.
speed, solo
Fuel
consumption
210 km
/
h
It
8x 100 km
173
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