MOTO GUZZI 850-T3 User manual

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S.C. R.A. mod . 052 . 6·75 . 4000 . Printed In Italy· Mariani · Alma ·Bergamo

Dear rider,
First of all we wish to thank you for choosing this motorcycle of our
production.
By following the instructions outlined in this' manual you will ensure
your
bike a long and troublefree life.
Before riding, please read throughly this manual in order to know your
motorcycle's features and how to operate it safely.
All major checking and overhaul jobs are best carried out by our dea-
lers who have the necessary facilities to quickly and competently repair
your Moto Guzzi.
Repais
or adjustments by other than a Guzzi dealer during the warranty
period could invalidate the warranty right.

INDEX
4 Main features
10 Controls and accessories
12 Identification data
13 Instruments and controls
20 Riding Instructions
21 Running in
23 Maintenance
29 Removal of wheels
32 Lubrication and maintenance chart
36 Lubrications
40 Carburation
43 Valve gearing
44 Ignition
48 Electrical equipment
50 LIGHTS (Europe model)
52 Wiring Diagram (Europe model)
54 LIGHTS (U.S.A. model)
57 Wiring Diagram (U.S.A. model)

4 MAIN FEATURES
Valve gear
Carburation
Lubrification
Generator
Ignition
2-cylinder 4-stroke
Cylinder disposition
Bore
Stroke
Displacement
Compression ratio
Output
«V" 90'
mm 83
mm 78
cc 844
9,5
HP 68 ,5 SAE at 7.000 r.p.m.
O.H .V. push rod operated.
2 Dell'Orto carburetors type VHB 30 CD (right),
VHB
30 CS (left).
Pressure, by gear pump.
Normal lubrication pressure 3,8
-;- 4,2 kg/sqcm
(controlled by relief-valve).
Electrically controlled oil pressure gauge.
Wire gauze and cartridge oil filters.
Front (14 V - 20 A) on the mainshaft.
By battery, with double contact breaker and auto-
matic advance.

Starting
Transmission
Clutch
Primary
drive
Gear box
Ignition data:
Initial advance (fixed) 2·
Automatic advance 31 ·
Full advance 33·
Contact breaker gap mm 0, 37 -7- 0,43
Spark plugs: .
Marelli CW 7 L; BOSCH W 225 ; AC - 44 XL
Plug points
gap mm 0,6
2 ignition coils.
Electri~ starter (12 V - 0,7 HP) with electromagne-
tic ratchet control. Ring gear bolted on flywheel.
Starter button, (START) right on the handlebar.
Dry type, multiplates, flywheel driven. Lever con-
trolled from handlebar (left).
via the gearbox.
Ratio :1:1,235
(Z = 17/21).
Five speeds, frontal engagement, constant mesh
gears. Gush drive incorporated.
5

6
Secondary
drive
Frame
Suspension
Pedal controlled from lett side of the motorycle
Ratioes:
low gear 1 : 2 (Z = 14/28)
2nd gear 1 : 1,388 (Z = 18/25)
2rd gear 1 : 1,047 (Z = 21/22)
4th. gear 1 : 0,869 (Z = 23/20)
top gear 1 : 0,750 (Z = 28/21)
cardan shaft (bevel gear set).-
Ratio: 1 : 4,714 (Z = 7/33).
Overall gear ratioes (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
Duplex cradle, tubular structure.
Telescopic front fork incorporating sealed hydrau-
lic dampers.
Rear swingin fork with externally adjustable
springs.

Wheels
Tires
Brakes
Spoked rims, WM 3/ 2,15 x 18 front and rear.
Front 3,50 H - 18 H
or 100/ 90 H - 18 H.
Rear 4,10 H - 18 H
or 110/ 90 H - 18 H.
Front:
Hydraulic
disc brake, (right) twin braking cylinder
caliper. Hand lever controlled from the handlebar
(R/H).
Hydraulic transmission, free from rear
braking system.
Disc dia.
300 mm.
Braking
cylinder dia. 38 mm.
Master
cylinder dia. 12,7 mm.
Twin hydraul
ic disc brake, (left) featured and di-
mensioned as above. Pedal lever controlled from
the motor cycle (R /H). Hydraulic transmission,
bound to rear braking system.
Rear:
Hydraulic
disc brake, twin braking cylinder ca-
liper . Pedal lever controlled from the motorcycle
(R/H).
Disc dia.
242 mm.
Braking
cylinder dia . 38 mm.
Master
cylinder dia. 15,857 mm.
Pedal
control actuates both twin front (left) and
rear brakes
at the same time .
7

8 Dimensions and weights
Performances
Fuel and oil capacities
Group or part
Fuel tank
(Reserve
I. 4)
Sump
Gear box
Wheelbase
Max. width
Max. length
Max. height
Min. ground clearance
Curb weight
m 1,470
m 0,780
m 2,200
m 1,060
m 0,150
kg 243
Maximum speed in each gear,
solo ri ding:
Gears Speed
low gear km/ h 71 , 837
second gear km/ h 103,502
third
gear km/ h 137, 339
fourth gear km/ h 165, 329
top gear km/ h 195
Fuel consumption: I. 6 x 100 km.
I. 24 Petrol 98 /100 NO-RM
I. 3 Agip SINT 2000
SAE
10 W/50
!. 0,750 Agip F.1 Rotra MP SAE 90