TECHNICAL DATA
ENGINE
Type
single cylinder, 4-stroke
Cooling
water
Bore
58 mm
Stroke
47.2 mm
Displacement
124.7 cu.cm
Compression ratio
12.8:1
Starter
electric
TIMING SYSTEM
Type
double
camshaft
Valve clearance (with engine cold)
Intake
0.05 ÷ 0.10 mm
Exhaust
0.15 ÷ 0.20 mm
LUBRICATION
Type
dry sump with lobe pump
and cartridge filter
IGNITION
Type
electronic
Spark plug type
NGK CR 8E
Spark
plug
electrode
0.8 mm
distance
4
EN -
FUEL SYSTEM
Type
PRIMARY DRIVE
Engine front sprocket
Clutch ring gear
Transmission ratio
overhead
CLUTCH
Type
TRANSMISSION
Type
Transmission ratio
1st gear
2nd gear
3rd gear
4th gear
5th gear
6th gear
SECONDARY DRIVE
electronic injection feed
Transmission sprocket
Rear wheel sprocket
Transmission ratio
Transmission chain
dimensions
Z 20
FINAL RATIOS
Z 67
3.35
In 1st gear
In 2nd gear
In 3rd gear
In 4th gear
In 5th gear
multidisc in oil bath with
mechanical control
In 6th gear
FRAME
Type
with always grabbing
gears
FRONT SUSPENSION
Fork type
2.833 (34/12)
2.066 (31/15)
1.555 (28/18)
REAR SUSPENSION
1.238 (26/21)
1.045 (23/22)
Type
0.916 (22/24)
Z 14
Z 53
3.786
4/8" x 7/20"
35.932
26.209
19.727
15.701
13.258
11.625
trellis perimeter frame made of
high-resistance steel tubes
tele-hydraulic with inverted fork
legs Ø 41 mm
single hydraulic shock absorber
(adjustable in pre-load)