Specifications - Stihl MS 290 Instruction Manual

Specifications

EPA / CEPA
The Emission Compliance Period
referred to on the Emissions
Compliance Label indicates the number
of operating hours for which the engine
has been shown to meet Federal
emission requirements.
Category
A = 300 hours
B = 125 hours
C = 50 hours
Engine
STIHL single cylinder two-stroke engine
MS 290
Displacement: 56.5 cm
Bore: 46 mm
Stroke: 34 mm
Engine power to 2.8 kW (3.8 HP) at
ISO 7293: 9,500 rpm
Idle speed: 2,800 rpm
Max. permissible
engine speed with
bar and chain: 13,500 rpm
MS 290, MS 310, MS 390
MS 310
Displacement:
Bore:
Stroke:
Engine power to
ISO 7293:
Idle speed:
Max. permissible
engine speed with
bar and chain:
MS 390
Displacement:
Bore:
Stroke:
Engine power to
ISO 7293:
Idle speed:
Max. permissible
engine speed with
bar and chain:
3
Ignition System
Electronic magneto ignition
Spark plug (resistor
type):
Electrode gap:
This spark ignition system meets all
requrements of the Canadian
Interference-Causing Equipment
Regulations ICES-002.
Fuel System
All position diaphragm carburetor with
integral fuel pump
Fuel tank capacity: 0.56 l
Fuel mix:
3
59.0 cm
47 mm
34 mm
Chain Lubrication
3.0 kW (4.0 HP) at
9,500 rpm
Fully automatic, speed-controlled oil
2,800 rpm
pump with rotary piston. Additional
manual oil flow control
13,000 rpm Oil tank capacity:
Weight
3
64.1 cm
49 mm
dry, without bar and chain
34 mm
MS 290:
3.2 kW (4.3 HP) at
MS 310:
9,500 rpm
MS 390:
2,800 rpm
Cutting Attachment (MS 290)
13,000 rpm
STIHL cutting attachments complying
with CSA Standard Z 62.3:
Rollomatic guide bars
Bar lengths (0.325"
pitch)
Bosch WSR 6 F,
NGK BPMR 7 A Groove width:
0.5 mm
.325" saw chain
Rapid Micro Comfort 3 (23 RMC3),
Rapid Micro Comfort (23 RMC), Rapid
Super Comfort (23 RSC)
Pitch:
Drive link gauge:
English
see chapter on
"Fuel"
0.33 l
5.9 kg
5.9 kg
5.9 kg
40, 45, 50 cm
1.3 mm
.325" (8.25 mm)
1.3 mm
43