MOTO GUZZI 850 ELDORADO Installation and maintenance manual

RIDER'S HANDBOOK

SEIMM
~
MOTO GUZZI
II' EDITION RIDER 'S HANDBOOK

INTRODUCTION
2
This bool<:l,;;t is intended to provide ownerI
with the necessary information on oper ltlno
and maintaining their machines for mllxlmum
efficiency.
The manual should be read very
carefully
as most troubles and failures aris in g from
neglect or poor maintenance wi!! be avoided
if all the inst ructions herein contained are
strictly followed.
Don't forget that all major overhaul Jobs nd
repairs are best carried out by ofHclelly
apPointed M oto Guzzi dealers who ha ve th.
necessary facilities to quickly and compete,,""
tly repair yo ur Mota GuzzI.
IN D EX F\Ulln,ng in
Controls and accesso
rie s
Identif ication data
Tool
kit .
Main f ea lu rel Engine
Transmission
Frame
In struments and co ntr ols
I gnition key
Starting button
Steering lock
Ught switch ' and horn button
Clutch le
ver
Twist grip throttle control
Carburetor .s tarter con trol
Gearshift lever
Fro
nt brake lever
Rear brake pedal
Side stand
Riding
instructions
Engine starting .
Caution
Starti
ng a hot engine
Getting un
der way and stopp ing of
machine
On the way
Lubrication
and general maintenance
chart
Servicing instructions ,
lubrication of engine
Oil pressure relief valve
Oil pressure gauge
lubrication of tra nsmiss ion
l
ubr ication of rear wheel drive
lubr ication of front fork
and hydrau
lic dampers
lubrication of bevels
in the steering .
lubrication of wh
ee l bearings
page 5
7
10
11
12
15
15
18
"
20
20
20
21
21
21
21
21
21
22
23
23
23
26
26
26
2'
30
30
31
31
•
32
32
33
33
34
3

4
Lubrication of control cables
Lubrication
of rear fork bearings
011 breather unit
Carburation
Carburetor
Standard carbure
tor setting
Adjusting the carburation
Stripping of carburetor
Air filter
Cleaning operations
Filters and fuel lines
Fuel tank
Fuel taps
Silencers
Cylinder heads. piston and valves
Va lve gearing
Tappet clearance
Checking valve
timing
Ignill on
Distributor
Spark plugs
Checking
of ignition t iming
Ch ec king of ignition advan ce
by str oboscope lamp
Adjustments
Generator belt
Clutch lever
Steering
Steering lock
Front brake
lever
Rea r brake pedal
Rear suspension units
Checking the gear operating
mechanism
Removal
of wheels
Front wheel
Rear wheel .
Electrical equipment
Wiring diagram
~g. 14
"
"
"
37
J8
J8
"43
44
44
"
"
' 5
..
4.
4.
4.
"
"
52
52
53
5.
56
56
56
59
60
62
62
63
65
65
67
68
73
RUNNING IN
After the
first 500 kms.
[300 mli'es)
Every 500 kms.
(300 miles)
During the first t600 kms. (tOOO miles). a
new
or overhauled machine ought to be used
with some inte llig ence as the efficiency. per-
formanco. and lile of the eng in e are largely
dependant on how It Is run in.
Th e engine sho uld never be all owe d to reach
a high number 01 revolutions
befor e it has
had a chance
to warm up suffi cientl y. Never
ride the machine at the highest
permissi ble
speeds
for each gear belore the machine has
been
we!1 broken in.
Should the engine speed drop off considera-
bly on an uphill grade. a lower gear should
be Immediately engaged. In case of overheat-
ing. It is best to stop and allow the engine
to cool down.
Under no Circumstances
whatever should the
following speeds be exceeded in the running
in period. .
Maximum
permissible speeds:
Distance:
up to 800 kms. (SOO miles):
in low gear 45 kms. 128 miles)
in second gear 65 kms. (40 miles)
in third gear 85 kms. [53 miles)
in fourth gear
100 kms. [62 miles)
in top gear 115 kms. (72 miles)
from 800 to 1600 kms. (500 to 1000 miles) :
in
low gear 55 kms. (34 .5 miles)
in second gear 80 kms. [50 miles)
in third. gear 105 kms. [65 miles}
in fourth gear 120 kms (75 mil es )
in top gear
140 kms. (87.5 miles)
From 1600 to 3000 kms. (1000 to 1800 miles)
the speed can be gradually increased up to
the maximum permissible limits. .
Change the engine oil.
Tighten all nuts and bolts.
Check valve clearance.
Check
distributor pOints.
Check oil level. Correct level is in between
the
minimum and maximum mark on the
filler cap dipstick.
5

=0
10
1
4
14
15 ~
16 ~/
"
, ~
U~= li =- --- 7
-
--------------- 8
19
Fig. 1
6
CON TR OLS AND ACCESSORI ES
(See fig. 1)
"-
Fr ont brake lever
2. Air control lever
3. Th ro ttle control gr ip
4. Statter button
s. Fi ll er cap
6. G ear shift lever
7. P ill io n lootr es t
8. Pi lli on handg rip
9. H ead l ig ht
".
S peedome t er
11 . Ignition key
12. Rev-cou nte r
13.
Cl utch lever
14 . Light switc h and horn
15. Side stand
16.
Rea r br ake pedal
17 . Footrests
18. Center stand
19. Tall light
~
~~ J!J: 1 0.0 !:i!.f~
button
Th e mach in e ca n also be suppl ie d wit h gear-
shjft lever on the le ft and rear br ake p ed al
on Ihe right.
N.B .. The t ~ nn • •righl» and .Ieft. in the le ,, 1 aN! used
In the s en se they woold appe ar 10 o ne si lti ng in the
s.&:ll e.
7

• •
•
•
.,
., "
~
m
'"
~
~
~ ~
"' "'
8 9

Id entiliutlon
data
(See fig 4)
10
Every ma chine Is identitied with a se nal
number which is stamped on the frame down
tube and
on the left hand side of the crank·
case cover.
This number appears in the conformity certi·
ficate and is the only one valid to all legal
effects
for the identification of tho machine
Fig. 4
Tool
kit
(See fig. 5)
o
o •
10 . Wrench, box 19 / 21 / 22 mm
II . Wrench. open ended 17/ 19 mm
12 . Wrench, open ended 13 / 14 mm
13 • Wrench, open ended 10 / 11 mm
14 • Wren ch, open ended 7/8 mm
15 • Wrench. open ended, tapp et a djusti ng
16 . Allen key. 5 hex
17 . Pliers. universal
18 • Sc rewdriver
19 . Wrench, ring. double 22 / 27 mm
20 . Feeler gauge
21 • Screwdriver
22 . Wrench. damper adjustin9
23 • Tool bag
24 . Instruction booklet
Fig. 5
','
\I

MAIN FEATURES
EN l;i IN E
(See fig . 5/ 1)
12
Cycle
Number
of cylinders
Cylinder
dispos it ion
Bore
Stroke
Displacement
fig . 5/ 1
J
4 s tr okes
2
.V.9O"
83 mm (3.2S")
78 mm (3.07")
844.05 ce. (51,5 cu.In.)
v.r ve gear
Compression ratio: 9.2 to I
Revs at maximum
engine speed 6500 r.p.m.
Output 81 maxi-
mum engine speed: 84 HP S AE
Cr ankcase In IIghl alloy
Cylinders In light alloy with hard
chromed barrels
Cylinder heads In light alloy, hemisphe
rical,
with speCia l cast
Iron Inserted seats
steel const ru ction
Crankshaft
Crankshaft
supports
in anti-friction mater ial
pressed in 2 suitable
hOUSings
Connecting rods
steel construction with
Al · TlN alioy thin wall
bearings
Pistons In light alloy
D.H .V. , push rod operated via the camshaft
in the crankcase
and gear driven by the
crankshaft.
Inlet:
-opens 24 " be fore T OC
-closes 58" a fter BOC
Exhaust:
-opens 58" before BOC
-closes 2 2" after TO e
R oc ker clearance lor valve timing;
-
0,5 mm. (.0196")
Normal rocker clea
ran ce (cold engine);
-Inlet
0,15 mm. (.0059"1
- exhaust 0,25 mm . (.0098"1 "

Carburatlon
Lu b ri cation
Cooling
Ignition
14
2 Oell'Orto carburetors type VHB 29 CD
(right) and V HB 29 CS {lehJ. both gravi ty
fed from the tank.
Standard carburetor se tting
_ Choke
29 mm .
_ Thr
ott le slide 60
-Atomi zer 265
-Main jet
145
-Pilot j et 45
- Star ter atomizer: BO
With needle SV5 sec ond notch from top:
Idling sc r ew open 11 k to 2 turns f or the
left
ca rbur etor and 2 . 2 1J 2 turns for the
right carburetor.
Air Intake provided with dry filter.
Pressure. by gear pump driven by the crank
sha ft .
011 strainer In cr an kc ase .
Normal lubrication
pressure 3.B . 4.2 kgs/ sq .
em . (54 to 60 Ibs sq. In.) controlled by relief·
valve.
El ec trica ll y controlled all pressure gauge.
By air Cylinder and cylinder head deeply
finned.
By battery with automat ic advance distri·
butor.
In itial advance: S·.
Automatic advan ce: 28 ·.
Ig nition timing 33" fu ll advance.
Cont act breaker gap: 0. 42 ..{).48 mm. (.016" •
.018").
Sparic: plug: n. 225 In Bosch·Marelli scale or
equivalent (long thread 0 14x 1, 25) .
Pl ugs point gap: 0.6 mm. (0.23··) .
Ignition coil.
Starting
bhau sl system
TRANS MISSI ON
Clutch
Gear box
Secondary
drive
FRAME
Suspension
Electric
sta rt er with electromagnetic ratchet
control.
Ri ng gear bol ted on flywh ee l. Operated by
starter bUllon on the right handlebar.
Du al exhaust pipes and mull Ie ,s
T win driven plates, dry type. flywheel driven.
ContrOlled by lever on the left handlebar.
Five speeds. frontal engagement. Heli cal
constant mesh gea rs. Cush drive incorpo-
rated. .
Separate case bolted on crankcase. opera ted
by rocker pedal Ir om the R/ H or L/ H side
of the machine.
Engine gear-box ratios:
Internal
gear ratios:
-low
gear
- second gear
-third gear
-fourth gear
-high gear
to 1.235 (17·2 1)
10 2
to 1.388
to
1.047
to 0. 869
to 0.750
(1 4-28 )
(18·25)
(-2 1- 22)
(23-20 )
(24 ·18)
By constant speed double joint cardan shaft.
Layshaft . bevel
gear ra ti o: 1 to 4 .625 (8-37)
Overall
gear ratios:
-
Ja w ge ar
- second gear
-third gear
-fourth gear
- high gear
Duplex cradle. tubular st ru cture.
to 11 . 424
to 7 .929
to 5.980
to 4. 964
to 4. 284
Te lescopic front fork in co rporatin9 hydraulic
dampers.
Rear swinging fork
wi th externally adjustable
springs.
IS

Wheel5
Tires
Tire pressure
Brakes
Over.1I
dimensions
.nd
weight
16
WM 3/ 2.15 l( 18 ".
4.
00 x 18 front and rear. block type (Super·
sport) .
Front lire :
solo
with passeng er
Rear tire :
solo
i.5 kgs/s q.cm. = 21 p.s. 1.
with passenger t.8 kgs/sq.cm. =
25 p .s:1.
2.0 kgs/sq.cm. = 28 p.s.!.
H.B .. "'" above l"Kom ......... tlon Is lo r ......... 1 rl dl ..
(uvl,l .. fI>"d). It .. ,I .. I "" machine -' COMtto'It high
fI>"d or on MOIO .... '. , tM above pres..... shou ld be
inc .. ued b1 0.2 kll'-' ''I . cm . (2 .' p .• .I .I.
Expandi ng type. 220 mm. dia. (8.66").
Twin leading shoes front brake operated by
hand lever on the ri9ht handlebar.
la rge rear brake operated on left hand side
of machine.
Wheelbase 1
.470 mts. (about
57 . 8"
length 2. 245 mls . [about
88 . 3"
Width 0.795 mts. [about 31.3"
Height (dry) 1. 050 mts . [about 41.3"
Minimum ground
clearance 0.
150 mts. [about 5.9"
Cu rb weight 249 kgs. (about 548Ibs.)
Maximum permissible speeds in each gear.
solo riding:
bottom gear
68 kms/ h (42 m.p.h.)
climbabillty: 86 %
second gear
98 kms/ h
climbabillty: 46 %
third gear 131 kms/ h
cllmbabllity : 28 %
61 m.p.h.)
82 m. p. h.)
Pa ssing
ability
Braking
ability
-fourth gear 164 kms/ h (102 m.p.h.)
climbability: 17" "
high gear 193 kms/h (120 m.p.h.)
cllmbabill1y: 8.9 °.
Po sslng of a 55 feet long truck
travelli ng at 20 m. p. h.
- Ti
me
-Distance lraveile d:
6.5 seco nd s
334 feet
Passing
of a 55 feet long truck
travelling at
50 m.p.h.
-Time
-Distance travelled: 8.7 seconds
900 feet
The above includes a safety distance of 40
and 100 feet respectively between the pas·
sing and pace vehicle at the beginning and
end
of the maneuvre.
Stopping distance from
60 m.p.h.
(Solo. using both brakes)
Stopping distance
with pa sseng er
from 60 m.p.h. (using both
brakes)
182 feet
198 feel
Fu el and o il c:apa cites
Croup or ,.n Quantity Recomm8fllUltion
--- ----- ---- ------------
Fuel tank
Re,erve
"'m,
Tran smission
R ear drive bo~
22.5 lit ers (5.84 US gls.}
4 IIl
er s (1 US gl • .)
3 liters {3 '.'. quartl]
0.750 liters (1 ~. pints)
lbevel set lubflc.llon) II 230 liter. (1 ", pint)
Front fork d.mpe r.
leach l eg) 0. 160 liters (5 . 401 . US)
Petrol 911/ 100 NO
(Regul •• octane )
Shell Super 100 mul .
tllj .. de or equivalent
S~ell Splrax H_D. 90
Shell Spl .ax H.D. 90
Shell Tellu. 33
17