MOTO GUZZI 850-T User 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 consrant 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