MOTO GUZZI 850-T User manual

S.C . .R.A. · mod : 019 - 11-74 - Sao -Printed in Italy -Marlan l- Bergamo

Dear rider,
First ot all we wish to thank you tor choosing this motorcycle ot our
production.
By tollowing the instructions outlined in this manual you will ensure
your bike a long and troubletree lite.
Betore riding, please read thoroughly this manual in
order to know your
motorcycle's teatures and how to operate
it sately.
All major checking and overhaul jobs are best carried out by our dea-
lers who have the necessary tacilities to quickly and competently .r epair
your Moto Guzzi.
Repairs or adjustments
by other than a Guzzi dealer during the ,war pJ 1nty
period could invalidate the warranty 'right.

INDEX
4 Main features
10 Controls and accessories
12 Identification data
13 Instruments and controls
19 Riding instructions
22 Maintenance
28 Removal of wheels
31 Lubrication and maintenance chart
36 Lubrications
39 Carburation
42 Valve gearing
43 Ignition -Checking and adjustment of double contact breaker
45 Checking of ignition timing "fixed advance»
47 Electrical equipment

4 MAIN FEATURES
Engine
Valve gear
Carburation
2- cylinder 4- stroke
Cylinder disposition
Bore
Stroke
Displacement
Compress ion ratio
Revs. at max.
engine speed
Maximum horsepower
O.H.V. push rod operated .
Timing data :
inlet: opens
closes
exhaust: opens
closes
20 ° before TDC
52" after BDC
52 ° before BDC
20° after TDC
« V,. 900
mm 83
mm 78
cc 844
9,5
7000 r.p.m.
HP
68
Rocker clearance for valve timing mm 1, 5.
Normal rocker clearance, cold engine, mm 0,22.
2 Dell'
Orto carburetors type VHB 30 CD (right) .
VHB 30 CS (left).

Lubrication
Generator
Ignition
Ignition data
Starting
Pressure, by gear pump. 5
Normal. lubrication pressure 3,8 -;- 4,2 kg/sqcm
(controlled by relief-valve).
Electrically controlled oil pressure gauge.
Front
(14 V - 13 A) on the mainshaft.
By battery, with double
contact breaker and auto-
matic advance.
Initial advance
Automatic advance
Full advance
Contact breaker gap mm 0,42 -;- 0,48
Spark plugs:
long thread (0
14x1 , 2S)
Thermal degree 240
Plug points gap mm 0,6
2 ignition coils.
8'
26 °
34°
Electric starter with el
ectromagnetic ratchet con-
trol. Ring gear bolted on flywheel. Starter button,
right on the handlebar.

6 Trasmission
Clutch
Gear box
Frame
Suspension
Wheels
Dry type, twin plates, flywheel driven. Controlled
by lever, on the handlebar (left).
Five speeds, frontal engagement, constant mesh
gears. Cush drive incorporated.
Controlled by pedal on the left side of the mo-
torcycle.
Bevel gear ratio: 1 : 4,625 (Z = 8-37).
Overall gear ratios:
low gear = 1 : 11,424
second gear 1: 7,928
third gear 1: 5,980
fourth gear = 1 : 4, 963
top gear = 1 : 4,284
Duplex cradle, tubular structure.
Telescopic front fork incorporating hydraulic
dampers.
Rear swinging fork with externally
adjustable
springs.
Spoked rims, WM 3/2,15 x 18 front and rear.

Tires
Brakes
Dimensions and weights
Front
3,50H-18841 studded.
Rear 4,10H -
18841 studded.
Pressure:
front solo
kg/sqcm
with passenger 1,8
rear solo
2,2
kg/sqcm
with passenger
2,5
kg/sqcm
The above data are for normal riding (cruising
speed). If using the motorcycle at constant high '
speed or on motorways, it is recommended to
increase pressure
by 0,2 kg/sqcm.
Front: hydraulic disc brake. Disc 0 mm 300.
Controlled by lever, right on the handlebar.
Rear: expansion type
(0 220 x 25). Controlled by
pedal on the right side of the motorcycle.
Wheelbase m 1,470
Max. width m 0,780
Max. length m 2,200
Max. height m 1,060
Min. ground clearance m 0,150
Engine
weight (dry) with carburetors and elec-
7

8
Performances
Electrical equipment
trical equipment, without inlet silencers, exhaust
pipes and silencers kg 60,500
Curb weight
kg 235 a.
Maximum speed in each gear, solo riding:
Gears Speed
low gear km/h . 76 ( 47 m.p.h.)
second
gear km/h 110 ( 68 m.p.h.)
third
gear km/h 146 ( 90 m.p.h.)
fourth
gear km/h 176 (109 m.p.h.)
top gear
km/h 195 a. (121 m.p.h.)
Fuel consumption: I. 7,27 x 100 km (CUNA).
Battery
Headlight (lamp)
high and low beam
City
light
Rear light (lamp)
parking and stop
Turn signal lamps
Speedo and rev.
counter lamps
Neutral, generator, oil
and lights lamps
Horn
12 V - 32 Ah
12V - 45/40W
12 V - 5 W
12 V - 5/20W
12V - 21W
12V - 3 W
12V-1,2W
12 V