Engine
STIHL single cylinder four-stroke
engine with mixture lubrication
Displacement:
1.73 cu. in.
(28.4 cm
Bore:
1.5 in. (38 mm)
Stroke:
0.98 in. (25 mm)
Engine power to
1.3 hp (0.95 kW) at
ISO 8893:
7,000 rpm
Idle speed:
2,800 rpm
Cut-off speed
(rated):
10,500 rpm
Max. output shaft
speed (cutting
blade):
8,500 rpm
Valve clearance:
Inlet valve:
0.004 in. (0.10 mm)
Exhaust valve:
0.004 in. (0.10 mm)
Ignition System
Electronic magneto ignition
Spark plug (resistor
type):
Bosch USR 7 AC
Electrode gap:
0.02 in. (0.5 mm)
Fuel System
All position diaphragm carburetor with
integral fuel pump
Fuel tank capacity:
17.9 fl.oz (0.50 L)
FC 90
Weight
dry, with deflector
and blade
3
)
Special Accessories
13.7 lbs (6.2 kg)
Blades
Length
8 in.
(200 mm)
8 in.
(200 mm)
Other Special Accessories
Contact your STIHL dealer for
information regarding special
accessories that may be available for
your product.
English
Thickness
Marking
3/32 in.
4133 / 01
(2.4 mm)
5/32 in.
4133 / 02
(3.8 mm)
33