27HS 81 R, HS 81 T
English / USA
EPA / CEPA:
The Emission Compliance Period
referred to on the Emissions
Compliance Label indicates the number
of operating hours for which the engine
has been shown to meet Federal
emission requirements.
Category:
A = 300 hours,
B = 125 hours,
C = 50 hours
CARB:
The Emission Compliance Period used
on the CARB-Air Index Label indicates
the terms:
Extended = 300 hours,
Intermediate = 125 hours,
Moderate = 50 hours
Moderate = 50 hours
Engine
Ignition System
Fuel System
Cutting blade sharpening angle
45° to horizontal
Weight (complete unit)
1)
Air filter (felt)
2)
Air filter (paper)
Contact your STIHL dealer for
information regarding special
accessories that may be available for
your product.
Single cylinder two-stroke engine
Displacement: 1.39 cu.in
(22.7 cm
3
)
Bore: 1.34 in
(34 mm)
Stroke: 0.98 in
(25 mm)
Engine power to
ISO 8993: 0.90 bhp
(0.7 kW)
Idle speed: 2,800 rpm
Specifications
Typ: Electronic magneto ignition
Spark plug
(suppressed): Bosch USR 7 AC
Electrode gap: 0.02 in (0.5 mm)
Carburetor: All position diaphragm
carburetor with integral fuel pump
Fuel tank capacity: 15.6 oz (0.46 l)
Fuel mix: See “Fuel”
HS 81 R/24"
1)
12.1 lbs (5.5 kg)
HS 81 R/30"
1)
12.6 lbs (5.7 kg)
HS 81 T/24"
1)
11.5 lbs (5.2 kg)
HS 81 T/24"
2)
11.7 lbs (5.3 kg)
HS 81 T/30"
1)
11.9 lbs (5.4 kg)
Special Accessories
