Specifications - Stihl MS 250 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 250, MS 250 C
Displacement: 45.4 cc
Bore: 42.5 mm
Stroke: 32 mm
Engine power to 2.2 kW (3.0 bhp)
ISO 7293: at 10,000 rpm
Idle speed: 2,800 rpm
Max. permissible
speed (with cutting
attachment): 14,000 rpm
Ignition System
Electronic magneto ignition
Spark plug (resistor
type): Bosch WSR 6 F
Electrode gap: 0.5 mm
MS 250
This spark ignition system meets all
requirements of the Canadian
Interference-Causing Equipment
Standard CAN ICES-2/NMB-2.
Fuel System
All position diaphragm carburetor with
integral fuel pump
Fuel tank capacity: 470 cc (0.47 L)
Chain Lubrication
Fully automatic, speed-controlled oil
pump with rotary piston
Oil tank capacity: 200 cc (0.2 L)
Weight
dry, without bar and chain
MS 250:
MS 250 C with quick chain
adjuster:
MS 250 C with quick chain
adjuster and
Easy2Start:
Cutting Attachments for MS 250,
MS 250 C
Actual cutting length may be less than
the specified length
STIHL cutting attachments complying
with CSA Standard Z 62.3:
Rollomatic E guide bars
Cutting lengths:
Pitch:
Groove width:
Nose sprocket:
.325" chain
Rapid Super (23 RS) Type 3637
Rapid Micro (23 RM) Type 3627
Rapid Micro 3 (23 RM3) Type 3632
Pitch:
Drive link gauge:
Chain Sprockets
7-tooth for .325"
Other Cutting Attachments
Other cutting attachments complying
with CSA Standard Z 62.3 are available:
4.6 kg
see section CSA Standard Z 62.3, the
chain leaflet inside the chain box or
contact your local STIHL dealer.
4.7 kg
Please ask your STIHL dealer to
properly match your powerhead with the
4.9 kg
appropriate bar/chain combinations to
reduce the risk of kickback injury.
English
35, 40, 45 cm
.325" (8.25 mm)
1.3 mm
11-tooth
.325" (8.25 mm)
1.3 mm
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