Specifications - Stihl 090 Instruction Manual / Owners Manual

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