Instruction Manual

MS 461
English
46
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
Engine
STIHL single cylinder two-stroke engine
Ignition System
Electronic magneto ignition
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
Chain Lubrication
Fully automatic, speed-controlled
reciprocating oil pump. Additional
manual oil flow control
Weight
Cutting Attachment (MS 461)
The actual cutting length can be less
than the specified cutting length.
STIHL cutting attachments complying
with CSA Standard Z 62.3:
Rollomatic guide bars
3/8" chains
Chain sprockets
Cutting Attachment (MS 461 with Wrap-
around Handle)
The actual cutting length can be less
than the specified cutting length.
STIHL cutting attachments complying
with CSA Standard Z 62.3:
Rollomatic guide bars
Specifications
A = 300 hours
B = 125 hours
C = 50 hours
Displacement: 76.5 cc
Bore: 52 mm
Stroke: 36 mm
Engine power to
ISO 7293:
4.5 kW (6.1 bhp)
at 9,800 rpm
Idle speed: 2,500 rpm
Max. permissible
speed (with cutting
attachment): 13,500 rpm
Spark plug (resistor
type):
Bosch WSR 6 F,
NGK BPMR 7 A
Electrode gap: 0.5 mm
Fuel tank capacity: 800 cc (0.8 l)
Oil tank capacity: 325 cc (0.325 l)
dry, without bar and chain
MS 461: 6.7 kg
MS 461 with handle and carbu-
retor heating: 6.9 kg
MS 461 with wrap-around
handle: 7.0 kg
MS 461 with wrap-around han-
dle, handle and
carburetor heating: 7.2 kg
MS 461 Rescue saw: 7.2 kg
Cutting lengths:
45, 50, 63, 71 and
90cm
Pitch: 3/8" (9.32 mm)
Groove width: 1.3 mm
Nose sprocket: 11-tooth
Rollomatic ES Light
Rapid Super (33 RS) Type 3623
Rapid Super 3 (33 RS3) Type 3624
Pitch: 3/8" (9.32 mm)
Drive link gauge: 1.3 mm
7-tooth for 3/8" (rim sprocket)
Cutting lengths:
45, 50, 63, 71 and
90cm
Pitch: 3/8" (9.32 mm)
Groove width: 1.3 mm
Nose sprocket: 11-tooth
Rollomatic ES Light