Operation Manual

BR 450, BR 450 C
English
27
Ignition System
Electronic magneto ignition
Fuel System
All position diaphragm carburetor with
integral fuel pump
Blowing Performance
Weight
Users of this unit should carry out only
the maintenance operations described
in this manual. STIHL recommends that
other repair work be performed only by
authorized STIHL servicing dealers
using genuine STIHL replacement parts.
Genuine STIHL parts can be identified
by the STIHL part number, the
{ logo and, in some cases, by
the STIHL parts symbol K. The
symbol may appear alone on small
parts.
For repairs of any component of this
unit’s air emissions control system,
please refer to the air emissions
systems warranty in this manual.
Observe all country-specific waste
disposal rules and regulations.
STIHL products must not be thrown in
the garbage can. Take the product,
accessories and packaging to an
approved disposal site for environment-
friendly recycling.
Contact your STIHL servicing dealer for
the latest information on waste disposal.
Spark plug (resistor
type): NGK BPMR 7 A
Electrode gap: 0.02 in (0.5 mm)
Fuel tank capacity:57.5floz (1.7l)
Blowing force: 28 N
Air velocity: 186 mph
(83 m/s)
Air flow rate: 642 cf/min
(1090 m
3
/h)
Maximum air velocity: 222 mph
(99 m/s)
Maximum air flow rate
without blower tube
assembly:
842 cf/min
(1430 m
3
/h)
BR 450:
23.4 lbs
(10.6 kg)
BR 450 C:
25.4 lbs
(11.5 kg)
Maintenance and Repairs Disposal
000BA073 KN