Specifications 090, 090 AV
Engine
STfHL
single cylinder two-stroke engine
Displacement:
137
ems
(8.36
cu.
in)
Bore:
66
mm
(2.6 in)
Stroke:
40
mm
(1.57
in)
Ignition System
Type:
Ignition
timing:
Breaker
point
gap:
Spark
plug:
Fuel System
Flywheel magneto
2.9-3.1
mm
(0.114-0.122
in) before
T.
D.C.
0.35-0.45
mm
(0.013-0.018 in)
BoschWSR6F
Champion
RCJ
6 Y
. -
All
position
diaphragm
carburetor
Fuel
capacity:
1.2
I
(2.5
US
pt)
Air
filter: Flocked wire
mesh
element
.
Fuel
mixture: Mix ratio
1:
25
with
SAE
30
two..cycle engine oil;
1:
40
with
STlHL two-cycle engine oil
Cutting Attachment
Bar
lengths:
53,
63,
75,
90,
105,
120,
150
cm
(20,
25,
30,35,41,47,
59
in)
use helpers handle
on
guide bars of
105
em
(41
in)
and
longer
Chain:
0.404"
(10.26
mm)
and
112"
(12.7
mm)
pitch
Chain
sprocket 6
and
7-tooth
Chain
lubrication: Fully automatic with oil
feed
control
and
supplementary, unit-mounted hand
pump
Oil
capacity:
0.53
I
(1.1
US
pt)
Weights
090
with
53
em
(21
In)
bar
and
chain: approx.
13.9
kg
(30.6Ib)
090
AV
with
53
em
(21
in)
bar
and
chain:·approx.
14.6
kg
(32.2
[b)
090
G
with
90
em
(35
In)
bar
and
chain: approx. ',68kg
(37.1
Ib)
Specifications
090 G
106
cm
s
(6.36
eu.
in)
58
mm
(2.3 in)
40
mm
(1.57 in)
Flywheel magneto
2.9-3.1
(0.114-0.122
in)
beforeT.D.C.
0.35-0.45
mm
(0.013-0.018
In)
BoschWSR6F
Champion
RCJ
6 Y
All position diaphragm carburetor
1.21
(2.5
US
pt)
Flocked wire mesh element
Mix
ratio
1:
25
with
SAE
30
two-cycle engine oil;
1:
40
with
STlHL two..cycle engine
oil
90,
105,
120,
150
em
(35,
41,
47,
59
in)
,
use
helpers handle
on
guide
bars
of
105
em
(41
In)
and longer
112"
(12.7
mm)
pitch
6-tooth
Fully automatic
with
oil
feed control
and
supplementary, unit-mounted
hand
pump
0.531
(1.1
US
pt)
Gearbox
Type:
Spur gear
Reduction ratio: 2: 1
Lubrication:
HD
SAE
30
engine
oil
011
capacity:
0.151
(0.32
US
pt)
37
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