English / USA
Specifications
EPA:
Engine
Rewind Starter
BR 420 and
The Emission Compliance Period
referred to on the Emissions
Starter rope:
0.14 in diameter
x 37.8 in
BR 420 with Catalytic Converter
Compliance Label indicates the number
of operating hours for which the engine
has been shown to meet Federal
emission requirements.
Single cylinder two-stroke engine
Displacement:
(3.5 mm diameter
x 960 mm)
3.45 ci
(56.5
cm3)
Air Flow Rate
with Nozzle in CFM (m3/h)
Bore:
Stroke:
Idle speed:
1.81 in (46 mm)
1.34 in (34 mm)
3,100 rpm
Category A = 300 hours, B = 125 hours,
C = 50 hours
BR 420
BR 420 Cat
524 (890)
518 (880)
CARB:
Ignition System
The Emission Compliance Period used
on the CARB-Air Index Label indicates
the terms:
Air Velocity
Type: Electronic magneto ignition
with Nozzle in MPH (m/s)
Spark plug
Bosch WSR 6 F
Extended = 300 hours
(resistor type):
or
BR 420
BR 420 Cat
174 (77)
172 (78)
Intermediate = 125 hours
Moderate = 50 hours
NGK BPMR 7 A;
Electrode gap:
0.02 in (0.5 mm)
Fuel System
Weight in lbs (kg)
Carburetor: All position diaphragm
carburetor with integral fuel pump
Fuel tank capacity: 50 fl.oz. (1.5 l)
BR 420
BR 420 Cat
20.1 (9.1)
20.5 (9.3)
Fuel mix:
see chapter on
“Fuel”
30
BR 420
| Categories | Blower Vacuum and Sweeper Manuals, STIHL Blower and Vacuum Manuals |
|---|---|
| Tags | STIHL BR 420 |
| Download File |
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| Language | English, Español |
| Product Brand | STIHL. Stihl Inc, USA - Corporate phone: (757) 486-9100. International Support Information: http://stihl.com Email: info@stihl.com, Blower Vacuum |
| Document File Type | |
| Publisher | stihl.com |
| Wikipedia's Page | Stihl |
| Copyright | Attribution Non-commercial |
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