MOTO GUZZI 850 Le Mans III Workshop Manual
~)(LeMans)
(HEE)
WORKSHOP
MANUAL
COD. 289201
51
Additions
to
the Workshop manual
for
the
models
V1000 G 50 and 1000 SP - Code 17 92 0161
The illustrations and descriptions in this booklet are indicative only and the manufacturer reserves Itself
the right to introduce
any
modification it may deem necessary for better performance or for constructive
or commercial reasons without prior notice.
SEIMM MOTO
GUZZI-
TECHNICAL PUBLICATIONS
CODE
28 92
01
51
1000 K -
1-82
- Printed in Italy - T ecnopress/Bergamo
~
__________________________________________________________________
~
22
8
HINTS ON THE PROPER USE OF THIS MOTORCYCLE
Due to its exceptionally high feature, this motorcycle can be considered as in the racing machine
class and as such has to be ridden in a
sportsmanlike way. For th is very reason, it has
met the favour of many motorcycle fans but,
same as for
all racing bikes , it has to be used ac-
cordingly
.
For instance,
forfuel
feed this model is fitted with
carburettors with pumps and if the twist grip is
not used correctly in accordance with the engine revolutions, there might be
an
excess of
fuel which is ejected by the carburettors, ending
in the air filter box of the carburettors same.
When
travelling at low speed
or
in other words at
low revs,
it
is necessary for the throttle grip to be
used with care since the immission of a greater
quantity of fuel mi
ght
not be fully absorbed
by
the engine.
At high speed,
also in case
of
abrupt accelera-
tions, the fuel is entirely absorbed and used up
by the engine, thus eliminating this risk and
con-
ferring to this model the brilliant « kicking up»
qualities
that make it one
of
its outstanding fea-
tures.
175
INDEX
Cylinders
Pistons
Con-rods
Crankshaft
Carburettors
Float levelling
Replacing the air filter
Front fork lubrication
Oil pneumatic
shock
absorbers
II
MAIN FEATURES
ENGINE
- cylinder disposition
- bore
- stroke
- displacement
- compression ratio
- max torque
VALVE GEARING
CARBURATION
LUBRICATION
GENERATOR
ALTERNATOR
IGNITION
- ignition data
- contact breaker points gap
- spark plugs
- plug points gap
- ignition coils
STARTING
TRANSMISSIONS
CLUTCH
PRIMARY
DRIVE
GEARBOX
- gear ratios:
Low gear
2nd
gear
3rd
gear
4th gear
5th gear
SECONDARY
DRIVE
- ratio
- overall gear ratios
(engine-wheel)
Low gear
2nd
gear
3rd
gear
4th gear
5th gear
twin cylinder - 4-stroke
«V,. 90°
83
mm
78
mm
844 cc
9.8 to 1
7.6 kgm at 6200 rpm
O.
H.V.,
push rod operated
n.
2 carburettors
<c
Dell'Orto,. type
PHF
36 B
(D)
(right)
PHF
36 B
(S)
(left)
pressure, by gear pump
wire gauze and cartridge filters in oil sump
normal lubrication pressure 3.8 to 4.2 kg/sq
cm
(pressure relief control valve in the sump)
oil pressure sender unit in the crankcase
fitted
in
the front part of the crankshaft
(14
V - 20
A)
coil-battery ignition with double contact breaker
and automatic advance with centrifugal masses
ignition advance (fixed)
8°
automatic advance 26°
full advance
(f.
+
a.)
34°
0.37...;...
0.43
mm
Bosch W 5 D
Lodge 2 HLNY
0.6
mm
n.
2 fitted on the frame
electric starter (12V - 0.7
KW)
with electromagnetic
ratchet control ring gear bolted on the flywheel
starter button
(START)
fitted on the R/H side of handlebar
twin driven plates, dry type
fitted on the flywheel side
hand controlled by lever on left handlebar
by gears, ratio 1 to 1.235 (2 = 17/21)
5 speeds, frontal engagement, constant mesh gears.
Cush drive incorporated
pedal operated on the
UH
side of the bike
1 to 2 (2 = 14/28)
1 to 1.388 (2 = 18/25)
1 to 1.047
(2=21/22)
1 to 0.869 (2 = 23/20)
1 to 0.750 (2 = 28/21)
by
cardan shaft, bevel gear set
1 to 4.
714
(2 = 7/33)
1 to 11.643
1 to 8.080
1 to 6.095
1 to 5.059
1 to 4.366
177
FRAME
SUSPENSIONS
- front
- rear
WHEELS
- front
- rear
TIRES
- front
- rear
BRAKES
- front
- rear
DIMENSIONS
AND
WEIGHTS
- wheel base (loaded)
- max length
- max width
- max height
- min. ground clearance
- dry weight abt
PERFORMANCES
- top speed
- fuel consumption
FUEL
AND
OIL CAPACITIES
duplex cradle, tubular structure
telescopic fork
«MOTO GUZZI patent»
with oil pneumatic shock absorbers
swinging fork and rear dampers with adjustable external
springs concentric to the oil pneumatic shock absorbers
light alloy castings with rims:
WM
3/2.15 x 18" CP2
WM
3/2.15 x 18" CP2
100/90
V
18
110/90
V
18
disc type with caliper having 2 cylinders, controlled
by hand lever on the
RIH side of the handlebar
hydraulic transmission independent from the rear brake:
disc dia.
300
mm
braking cylinder dia. 38
mm
master cylinder dia 12.7
mm
disc type with fixed caliper with two cylinders
foot controlled with pedal on the
RIH side of the bike:
disc
dia. 242
mm
braking cylinder dia. 38
mm
master cylinder dia. 15.875
mm
the rear brake is connected by
an
hydraulic
transmission to a second brake on the front wheel
having the same features and size as the hand
controlled front brake
1.505 m
2.190 m
0.640 m
1.160 m
0.175 m
206
kg
230 km/h
(144
mph), solo
5.7
I x 100 km
- fuel tank 25
I (6.15
US
gls) supergrade petrol
(98/100
NO-RM)
(reserve 3 I about) (3.1/4 quarts)
-
oil sump 3 I (3.1/4 quarts) oil
"Agip
SINT 2000
SAE
10
W/50
..
- gear box 0.750 I (1.3/4 pints) oil
"Agip
F.1
Rotra
MP
SAE
90»
- rear drive box
(bevel gear set lubrication)
- front fork (each leg)
- braking circuits
(front and rear)
178
0.250 I
(9
oz abt) oil of which: 0.230 I (8.1/4 oz abt)
«Agip
F.1
Rotra
MP
SAE 90» and 0.020 I (3/4
oz)
«Agip Rocol
ASO/R»
or
Molikote "A» type
0.060 I
(2
oz abt) fluid
"Agip
F.1
ATF
Dexron»
fluid «Agip F.1 Brake fluid - SAE J 1703
B"
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