Specifications - Stihl BR 420 Manual De Instrucciones

English / USA

Specifications

EPA:
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
30
Engine
BR 420 and
BR 420 with Catalytic Converter
Single cylinder two-stroke engine
Displacement: 3.45 ci
(56.5 cm
Bore: 1.81 in (46 mm)
Stroke: 1.34 in (34 mm)
Idle speed: 3,100 rpm
Ignition System
Type: Electronic magneto ignition
Spark plug Bosch WSR 6 F
(resistor type): or
NGK BPMR 7 A;
Electrode gap: 0.02 in (0.5 mm)
Fuel System
Carburetor: All position diaphragm
carburetor with integral fuel pump
Fuel tank capacity: 50 fl.oz. (1.5 l)
Fuel mix: see chapter on
"Fuel"
Rewind Starter
Starter rope:
3
)
Air Flow Rate
with Nozzle in CFM (m
BR 420
BR 420 Cat
Air Velocity
with Nozzle in MPH (m/s)
BR 420
BR 420 Cat
Weight in lbs (kg)
BR 420
BR 420 Cat
0.14 in diameter
x 37.8 in
(3.5 mm diameter
x 960 mm)
3
/h)
524 (890)
518 (880)
174 (77)
172 (78)
20.1 (9.1)
20.5 (9.3)
BR 420