MOTO GUZZI 850-T Owner's manual

850 - T

OWNER'S

MANUAL

Pt # 1790 0000

Dear rider,

First of

all

we

wish to thank you for choosing this motorcycle of our

preduction.

By

following the instructions outlined

in

this manual you will ensure

your bike

s long

and

troublefree life.

Before riding, please read thoroughly this

manual in order

to

know your

motorcycle's feafures and

how

to

operate it safely.

All

major checking

and

overhaul jobs are best carried out by our dea-

lers who have the necessary

fa

cilities

to

quic

/e

ly

and competently repair

your Mota Guzzi.

Repairs

or

adjustments

by

other than a G

uz

zi dealer during the warranty

period

could

invalidate

th

e

wa

rranty right.

INDEX

4 Main features

10 Controls and accessor

ie

s

12

Identification deta

13

Instruments and controls

19

Riding instructions

22

Maintenance

28

Removal or wheels

31

Lubrication and maintenance chart

36

Lubrications

39

Carburation

42

Valve

gear

ing

43

Ignition - Checking and

ad

justment of double contact breaker

45

Checking of ignition timing

..

fixed

ad

'/ance

..

47

El

ectr

ic

al

eq

uipment

4

MAIN

FEATURES

Engine

Valve g

ea

r

C

arbu

ra

li

on

2-cylinder 4·stroke

C

ylinder

ci

isposition

Bore

Stroke

Disp

la

cemen

t

Compression

ratio

Revs. at max. engine

speed

Maximum

horsepower

O.H.V. push rod operated.

T

iming

data:

inlet: opens

20"'

before TOe

closes 52' aHer BOC

exhaust:

opens

52*

before

SOC

clos

es

20- after TOe

.v

..

9

0"

mm

83

mm 78

cc 844

9,5

7000 r.p.

m.

H?

65

Recker clearance

for

valve timing mm 1.

:.

Nor

mal

rocker

clearance, ce

ld

engine, mm 0,22.

2

Oell'Orto

carbu

re

tors

type VHB 30 CD (right).

VHB

30 CS (left).

Lubr

icati

on

Ge

nerat

or

Ignillon

Ignition data

Starting

Pressure, by

gear

pump.

Normal lubrication pressure 3,

8";-

4,2

kg

/sqcm

(controlled by

re

li

ef-valve).

El

ectr

ica

lly

controlled o

il

pressure gauge.

Front

(14

V - 13

A)

on the mainshaft.

By

ba

ttery, with double

contact

breaker and auto-

matic advance.

In

iti

el advance

Automatic advance

Fu

ll

advance

Contact

break

S'

r gap mm 0,42 +

0,48

Spark plugs:

long

th

read

(0

14

x 1,25)

Thermal

degree

240

Plug points gap mm 0,6

2 ignition coil

s.

S'

26'

Electric starter with el

ectromagnet

ic

ra

tchet

con

·

trol.

Ring gear bolted on flywheel. Starter button.

ri

ght

on the handlebar.

5

6

Trasmission

CIU

ICh

Gear

box

Frame

Suspen

sio

n

Wheels

Dry type, twin plates. flywheel driven. Contro

ll

ed

by lever, on the handlebar (left).

Fi

ve

speeds, frontal engagement. constant mesh

gears. Cush dr

iv

e incorporated.

Controlled

by

pedal on the left side of the mo-

torcycle.

Bevel gear ,a/io: 1 : 4,625

(Z

= 8-37

).

Overall

gear

ratios:

low

gear

= 1 :

11

.

424

second

gear

=

1:

7,928

third

gear

=

1:

5,

9EO

fourth

gear

=

1:

4,963

top gear

:::::

1:

4,284

Duplex cradl

e,

tubular structure.

Telescopic front fork

incorpora

t

i

n~

hydrau

li

c

dampers.

Rear swinging

fork with externa

ll

y

ac

j

ustab

le

springs.

Spoked rims,

WM

3/ 2.15 x 18 front and l

sa

r.

Tires

Brakes

Dimensions

and weights

Front 3,

50

H -

18

S

41

studded.

Rear

4.10 H -

18

S

~1

studded.

Pressure:

front

$010

with

passenger

r

ear

solo

with passenger

1.8

kg

/sqcm

2.2

kg

/sqcm

2

.5

kg

/sqcm

The

abovg data

Bre

for normal

rid

ing (cruising

speed). If us;ng Ihe motorcycle at cons rant h;

gh

speed

or

on

mo/orNays,

It

is recommended

to

increase

pr~ssure

by

0,2

kg/sqcm.

Fro

nl:

hydraulic

di

sc

brake. Disc ~

mm

300.

Controlled

by

lever, right on the handlebar.

Rear: expansion type

(0

220 x

25)

. Controll

ee

by

pedal on

th

e right side of the motorcycle.

Wheelbase

m

1,470

Max. wi

dth

m 0,780

Max. tength m 2

.200

Max. height m

1,OSO

Min. ground clearance m 0,150

Engine

we

ight (dry) with carburetors and elec-

7

8

Performances

Electrical equipment

Passing ability

tr

ical equipme

nt

, without inlet silencers. exhaust

pi

pes

and

s

il

encers

kg

60

,5

00

Cu

rb

wei

gh

t

kg

235

a.

Maximum speed in each gear. 5010 riding:

Gears Spe

ed

1

01'1

gear

km

/ h 76 (

47

m.p.h

.)

second gear

km

/ h 110 ( 63 m.

p.

h.)

thi

rd

gear

km

/ h 146 ( 90 m.p.

h.)

fourth gear

km

/ h

176

(109

m.p.

h.

)

top gear

km

/ h

195

a. (12 m.p.h

.)

Fuel consumption:

I.

7.27 x 100

km

(CUNA

).

Battery

Headlight of

sea

l

ed

beam type

Rear

light (lamp)

parki

ng

and

slop

Turn signal lamps

Spesdo

and

rev

. counter lam

ps

Neutral, generator, o

il

and lights tamps

Horn

12

V -

32Ah

12V-S

/

'<OW

12V

- 21 W

12

'1

- 3 W

12

'1

- 1.2 W

12V

Passi

ng

of a 55 fes! long t

ru

ck travelling at

20

m.p.h.

- Time:

- Distance

trave

ll

ed:

6,5

seconds

334 fe2t

Braking

ability

Passing of a 55 fee! long

truck

travelling

at 9

50 m.p.h.

- Time:

-

Oistanc~

travelled:

8,7 seconds

900

feet

The above includes a safe

ty

distance of

40

and

1

00

feet respectively between the passing and

pace vehicle at the beginning and end of the

manoeuvre.

Slopping distance from

60

m.p.h.

(so

l

o,

using

both brak

es

):

17i

feel.

Stoppi

ng

distance with passenger from

SO

m.p.h.

(us

ing both brakes): 193 1eet.

Fuel and oil capacities

Group

or

part

Fuel tank

Reserve

Sump

Gear box

Rear

dr

ive box

(bevel set lubrication)

Fr

ont

f

ork

(each leg)

Front brake

Quantity Recommendation

I.

25

I.

4

I.

3.5

I.

0,750

I.

0.340

I.

0.02

I.

0.050

Pe

trol

98

/

100

NO

-AM

Ag

ip F

.1

Supermotoroil

SA: 20 W / 50 .

Ag

ip F

.1

Rotta MP SAE S

Ag

ip F

.l

Rotra MP

SA:

90

Molykote type A

Ag

ip

F.

1 ATF Dexron

Agip

F.1

Brake fluid

10

CONTROLS AND ACCESSORIES

(fig. 2)

1 Front brake disc.

2 Front brake pliers.

3

Pump and fluid reservoir,

front

brake.

4 Front

brake

contro

l lever.

S

Throttle

contro

l grip.

6 Starter and engine

emergency

stop.

7 Key

switch

.

8 Fuel filler cap.

9 Rear brake pedal.

10 Footrest

11

Footrest passenger.

12

Head

ligh

t.

13 Fro

nt

turn

si

gna

ls.

14

Indicator panel.

15

Mile counter.

16 Rev·counter.

17

Clutch control lever.

18

Horn. flashi

ng

light and turn sig

r.

als bueons.

19

Lighting switch.

20

Gearshift pedal.

21

Rear turn signals.

22

Rear

light.

Right and lelt ars Imsnded

as

if

se~n

in tiding

position.

11

12

13

14

15

18 19

21

22

2

12

IDENTIFICATION DATA

(fig. 3)

E'lery

motorcyc

le is identified by a

se

rial numoei

which Is stamped on the frame down tube and

on the crankcase.

T

he

nu

mber

on

the frame

downtube

appears

also

in the certificate

of

conformity and is

....

a

~

lid

to

legal effects for the identification of the

motorcycle.

INSTRUMENTS AND CONTROLS

Instrument pan

el

(fig. 4)

M

ile

counter.

2

RS

'I.

-counter.

3 Red

warning

light

i

nd

ica

iing

insufficient

cu

r-

fant

from

the

generator

for battery c

haige.

It

m

ust

go

o

ut

wh

en t

he

eng

in

e reaches e

cer

tain

number

of

revo

lutions.

4 Orange neutral Indicator. It lights when t

he

gearbox

is in neutral position. It may be we

ll

to

ma

ke

sure

that

th

is positi

on

is correc!.

In

an

y

c:~

se

It is a good practice to

pu

ll the clutch

be

-

fore starting.

5

Re

d wa

rn

in

g light.

Oil

press

ure

gaug

e. It g

oes

13

14

out when the pressure is sufficient for normal

engine

lubr

ication. Should it

not

go

out, the

pre~·

sure is not

correc

t; in this case the angine has

to be stopped and

su

itable

chec

kings are to be

carried

o

ut

Ig

nition key and

steering

loc

k

The key has

fQur

positions (fig. 5):

6 High beam warning light (red).

By

da

y riding

all

warning

lighls

ar

e to be out.

·0

·

Standstill. key not

re

movable.

· 1.

(i

ntermediate)

Turned anticlockwise, standstill, key removable. Steering

locked on removal of

key and turning of

th

e handlebar right or

refl

Turned clockwise, be!ween position

-0

..

and position -2

.,

key removable. In

this position the key can

be

remov

ed

without locki

ng

the steering.

Turned c

lock

wi

se

. raaey

to

start, all controls are in.

Lights swi

tch

Left, on the handlebar,

-4

positions (fig. 6

..

a

..

).

..

,

..

OFF Lights oH.

..

2

..

PARK Rear light.

•

3.

L Low

beam.

..

4

..

H High

beam.

• 5. Safety

(to

come back to

posit

ion

OFF

press the button towards

1he

lelt).

~

'I

.

f~

.::

-

....

-:

..

-

.--:-:

-~

.

-

.

...-.

--':"

.

_l~;

Horn, flashing light

and turn signals

left,

on

th

o handlebar (fig. 6 -C

o)

.

• 6

..

HO

RN

Horn button .

..

7

..

F

LASH

Fl

ash

i

ng

light button .

..

8

..

Turn signals button .

..

9

..

When turned to the right operates t

he

right

sig

na

ls .

-

10.

When turned to the l

eft

operates: the le

ft

signalS.

....

'"';.'

".

-:-

-.-

15

16

Starting and engine

emergency stop

Righ

t.

on

the

handle

bar

(fig. 7

.A·

).

With the i

gn

ition key in

pos

ition . 2

..

the motor·

cycle is ready to be started.

To

start the engi

ne

(see

-A.)

press the

button

..

1

..

START.

To s

top

the

~

ng

i

ne

(in case of emergency) turn

the

butten

in pos

itio

n

..

3

..

or

.4.

OFF.

Carburetor starter control

T

he

two levers

for

starting a

cold

engi

na

are

located left on t

he

left ca

rburetor

and right on

the right c

arbu

retor

(fig. 23) .

..

A

..

S

tarting

~os

jti

on

.

• 8

..

R

idi

ng pos

ition

Throttle control

Right on the ha

ndleb

ar;

thr

o

tt

le is opened by

turni

ng

toward the

rider

and closed viceversa.

Clutch control lever

.Left on the

ha

ndlebar, to be used for starti

ng

and gearshifting only.

Front brake control lever

Right on the handlebar. connected with the brake

pump fluid reservoir.

Rear brake pedal

On the right side of the motor

cyc

le.

Gearshift pedal

On

the left sice of

~he

motorcycle (fig. 8).

l

ow

gear: pedal down.

2. 3,

4.

and

top

geer

:

peda

l up.

Neutral position: between low and 2nd gear.

B

elo

re

op~

rat

i

ng

the gears

hift

pedal, the clutch

lever has to be camp/staiy pu

ll

ed in.

,.

•

-,'

10

Fuel filler cap

To open it. press the control button

.A.

(fig. 9).

Fuel taps

They

are

loca

ted

fear

, under the fuel tank

(I

ig. 10

).

Pos

itions:

-A.. Open (vertica

l)

.

-R

oo

Reserve (horizontal) see cR_ on the tap

s.

.C.

Closed (horizontal) see •

C·

on

the taps .

17

18

Terminal b

lock

with fuses

It

is

located under the seat (fig.

11

) and

ho

l

ds

n. 6

15

A

fuses

.

11

RIDING INSTRUCTIONS

Chec

:<ing

Befo

re

start

i

ng

the engine ensure t

hat:

• there is sufficient fuel in the tank;

• the o

il

in

th

e

eng

in

e sump is at

correct

le

vel;

• the ig

nit

ion

ke

y is in

po

sition -2- (s

ee

fig. 5

);

• the

wa

rning

li

gh

ts: r

ed

(o

il

pressure

9au9';

and

generator

);

or

ange {

neutra

l i

nd

i

cator

} are

lit;

• the sta

rt

er

levers 0

:1

the car

bure

t

ors

,

for

col

d

eng

in

e

are

in starting position (v

ertical

) see

-A

..

in fig.

23

.

Engine starting.

Aft

er

t

he

f

ir

st checking.

tt!r

Q.

the

tw

ist

gr

ip

1

/

~

towards

the

ri

der

and push the start

butto(l

. ri

gh

t

on the ha

nd

l

eb

ar -1- S

TA

RT in fig. 7.

After the

eng

i

ne

has been starIsd. bef

ore

ret

urn

-

i

ng

the staner con!rol levers into riding position

(horizontal) see

.8

..

in fig.

23.

let

the engine

id

le

a

short

while in the hot season and a few minu-

tes in the

co

ld season.

S:,ould the cont

ro

l starter levers be left In start-

ing

pos

iti

on . An In fig. 2

3)

by

rid

ing, there would

be Irregu

lar

carburction and Increas

ed

luel con-

sumption and ev

en

worse. there could be the pos-

s

ibili

ty

01

seizures because of too much pe

lrol

going in

lo

the cylinders.

Do

nOi

forget

t

h

~

t

if

the engine is in gear. the

neutral i

nd

i

cator

lig

ht

(orange) is

not

lit:

to

start

th

e

~

n

g

i

n s

in

sue

.; co

nd

itions could

be

very dan-

gerous, unless

the

clutch

Is

kept lu

lly

disenga-

ged, as the

motorcycle

itsell

may

stan

off

.

Starting a hot engine

In this C2se it is not necessary to set the

sta

i!

er

control levers on the carburetors in startin

s;

pc-

s

ition

(

..

A

..

in fig.

23

) as this wo

uld

richen t

he

carburati

oio

tco much.

19

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