MS 241 C-M
English
52
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
CARB
The Emission Compliance Period used 
on the CARB-Air Index Label indicates 
the terms:
Engine
STIHL single cylinder two-stroke engine
Ignition System
Electronic magneto ignition
Fuel System
All position diaphragm carburetor with 
integral fuel pump
Chain Lubrication
Fully automatic, speed-controlled 
reciprocating oil pump. Additional 
manual oil flow control
Weight
Cutting Attachments
Recommended cutting attachments 
conforming with the 45 degree 
computed kickback angle requirement 
of Section 5.11 of 
ANSI/OPEI B175.1
-
2012 when used on 
this model chain saw (see the chapter 
on "Safety Precautions and Working 
Techniques"):
Rollomatic E guide bars
Actual cutting length will be less than 
listed bar length.
Saw chain 3/8" P
Chain sprocket
To comply with the 45 degree computed 
kickback angle requirement of Section 
5.11 of ANSI/OPEI B175.1
-
2012, use 
replacement saw chains listed above or 
elsewhere by STIHL as conforming with 
that requirement when used on this 
model chain saw or use saw chains 
Specifications
A = 300 hours
B = 125 hours
C = 50 hours
Extended = 300 hours
Intermediate = 125 hours
Moderate = 50 hours
Displacement: 2.60 cu.in 
(42.6 cc)
Bore: 1.67 in 
(42.5 mm)
Stroke: 1.18 in (30 mm)
Engine power to 
ISO 7293:
3.1 bhp (2.3 kW) 
at 10,500 rpm
Idle speed: 2,800 rpm
Cut-off speed: 14,000 rpm
Spark plug (resistor 
type): NGK CMR6H
Electrode gap: 0.02 in (0.5 mm)
Fuel tank capacity: 13.2 fl.oz (0.39 l)
Oil tank capacity: 8.5 fl.oz (0.25 l)
dry, without bar and chain
MS 241 C-M: 9.9 lbs (4.5 kg)
Reduced kickback STIHL guide bars 
(with green label)
Bar lengths: 30, 35, 40, 45 cm (112, 
14, 16, 18 in.)
Pitch: 3/8" P (9.32 mm)
Groove width: 1.3 mm (0.050 in)
Sprocket nose: 9
-
tooth
Low kickback STIHL saw chain (with 
green label)
Picco Micro 3 (63 PM3) Type 3636
Picco Super 3 (63 PS3) Type 3616
Picco Duro 3 (63 PD3) Type 3612
Pitch: 3/8" P (9.32 mm)
Drive link gauge: 1.3 mm (0.050 in)
6-tooth for 3/8" P (spur sprocket)