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FS 90, FS 90 R
English
47
Ignition System
Electronic magneto ignition
Fuel System
All position diaphragm carburetor with
integral fuel pump
Weight
Overall length
Features
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.
Warranty claims following repairs can be
accepted only if the repair has been
performed by an authorized STIHL
servicing dealer 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.
Displacement:
28.4 cc
(1.72 cu.in)
Bore:
38 mm (1.50 in)
Stroke:
25 mm (0.98 in)
Engine power to
ISO 8893:
0.95 kW
(1.3 bhp) at
7,000 rpm
Idle speed:
2,800 rpm
Cut-off speed (rated): 10,200 rpm
Max. output shaft
speed (cutting
attachment):
7,500 rpm
Valve clearance
Inlet valve:
0.10 mm
(0.004 in)
Exhaust valve:
0.10 mm
(0.004 in)
Spark plug (resistor
type):
Bosch USR 7 AC
Electrode gap:
0.5 mm (0.02 in)
Fuel tank capacity:
0.53 l (17.9 fl.oz)
Dry, without cutting attachment and
deflector
FS 90:
5.8 kg (12.8 lbs)
FS 90 R:
5.5 kg (12.1 lbs)
without cutting
attachment
1800 mm (71 in)
R
Loop handle
Z
Spark arresting screen in muffler
Maintenance and Repairs
Summary of Contents for FS 90
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Page 114: ...FS 90 FS 90 R espa ol EE UU 112...
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