Main Features - MOTO GUZZI 850 T3 Workshop Manual

MAIN FEATURES
ENGINE
2-cylinder 4-stroke
Cyl inder disposition
Bore
Stroke
Displacement
Compression ratio
Output
"V" 90"
mm 83
mm 78
cc
844
9,5
HP 68,5 SAE al 7.000 r.p.m.
Valve gear
D.H.V. push rod operated.
Carburalion
2 Dell'Orlo carburetors type VHB 30 CD (right),
VHB 30 CS (left).
Lubrication
Pressure ,by gear pump.
Normal lubrication pressure 3,8 7 4,2 kp / sqcm
(controlled by relief-valve).
Electri cally controlled oil pressure gauge.
Wire gauze and cartridge oi l filters.
Generator
Front (1 4 V • 20 A) on the mainshaft.
Ignilion
By battery. with double contact breaker and
automatic advance.
Ignition data:
In ilial advance (fixed)
Automatic advance
Full advance
Contact breaker gap mm
Spa rk plugs:
2"
31 "
33"
0,37
+
0,43
Marell i CW 7 L; BOSCH W 225 ;
AC· 44 XL
Plug points gap mm 0,6
2 ignition coils.
Starting
Elec tric starter (12 V - 0,6 HP) with electroma-
gnetic ratchet control. Ring gear bolted on fly-
wheel. Starter bolton, (START) right on the
handlebar.
TRANSMISSIONS
Clutch
Dry type, multiplates, flywheel driven. Lever con-
trolled Irom handlebar (left).
Primary drive
via the gearbox .
Ratio: 1 : 1,235 (Z
=
17/ 21).
Gear box
Five speeds, frontal engagement, constant mesh
gears. Cush drive incorporated.
Pedal controlled from left side of the motor-
cycle.
Ratio:
low gear 1 : 2
2nd gear 1 : 1,388
3rd gear 1 : 1,047
4th gea r 1 : 0,869
top gear 1 : 0,750
Secondary drive
(2
~
14/ 28)
(2 ~
18/ 25)
(2
~
21/22)
(2
~
23/20)
(2
~
28/ 21)
cardan shaft (bevel gear set) .
Ratio : 1 : 4,714 (Z
=
7/ 33).
Overall gear ratio (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
FRAME
Duplex cradle, tubular structure.
Suspension
Telescopic front fork incorporating sealed
hydraulic dampers.
Rea r swingin fork with externally adjustable
springs.
Wheels
Spoked rims, WM 3/ 2,15
x
18 front and rear.
Tires
Front 3,50 H - 18 H or 100/ 90 H 18 H.
Rear 4,10
H -
18
H
or 110/ 90
H
18
H.
Brakes
Front:
Hydraulic disc brake, (right) twin braki ng cylin-
der caliper. Hand lever controlled f rom the
handlebar (R/ H). Hydraulic transmission, free
from rea r braking system.
Disc dia. 300 mm.
Braking cylinder dia. 38 mm.
Master cylinder dia. 12,7 mm.
Twin hydraulic disc brake, (left) featured and di-
mensioned as above. Pedal lever controlled from
the motorcycle (R/ H) . Hydraul ic transm ission,
bound to rear braking system.
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